Head-to-head comparison

DeepSeek-V4-Pro vs. DeepSeek-V4-Flash

Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.

shared result series: 60
distinct benchmarks: 2
latest retrieval: 2026-09-29

First modelSecond model

Specifications

General specifications

Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.

Specifications for DeepSeek-V4-Pro and DeepSeek-V4-Flash
Attribute	DeepSeek-V4-Pro	DeepSeek-V4-Flash
Provider	DeepSeek	DeepSeek
Released	Apr 24, 2026	Apr 24, 2026
Availability	Active	Limited access
Model type	Open Weights	Open Weights
Parameters	1.6T, 49B active	284B, 13B active
Architecture	Mixture of Experts	Mixture of Experts
Context window	1,000,000 tokens	1,000,000 tokens
Knowledge cutoff	Not published	Not published
Technical sources	Model, Context	Model

Pricing

API pricing compared

The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

API pricing for DeepSeek-V4-Pro and DeepSeek-V4-Flash
Price type	DeepSeek-V4-Pro	DeepSeek-V4-Flash
API input	$0.66 (Off-Peak)	$0.14
API output	$1.98 (Off-Peak)	$0.4
Cache read	$0.02 (Off-Peak)	Not listed
Cache write (5 min.)	Not listed	Not listed
Cache write (1 hr.)	Not listed	Not listed
Price verified	09/22/2026 Source	10/02/2026 Source
DeepSeek-V4-Pro: peak pricing is $1.32 input / $3.96 output per 1M tokens during Mon, Tue, Wed, Thu, Fri, 01:00-04:00 UTC; Mon, Tue, Wed, Thu, Fri, 06:00-10:00 UTC; off-peak rates apply at all other times.

DeepSeek-V4-ProDeepSeek-V4-Flash

API inputUSD per 1M tokens, base tier

DeepSeek-V4-Pro$0.66

DeepSeek-V4-Flash$0.142

API outputUSD per 1M tokens, base tier

DeepSeek-V4-Pro$1.98

DeepSeek-V4-Flash$0.4

Key to the marks:better valuebetter, but not conclusivetie

Pricing by provider

Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.

Provider pricing for DeepSeek-V4-Pro and DeepSeek-V4-Flash
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
DeepSeek-V4-Pro	DeepSeek	Direct from developerStandard API	$0.66	$1.98	Source09/22/2026
	Alibaba	Via OpenRouteralibaba	$0.5808	$1.7424	Source10/02/2026
	AtlasCloud	Via OpenRouteratlas-cloud/fp8	$1.32	$3.96	Source10/02/2026
	Baidu	Via OpenRouterbaidu/fp8	Lowest listed price: $0.132	Lowest listed price: $0.396	Source10/02/2026
	Cloudflare	Via OpenRoutercloudflare	$1.32	$3.96	Source10/02/2026
	CoreWeave	Via OpenRoutercoreweave/fp8	$1.31	$3.96	Source10/02/2026
	DeepInfra	Via OpenRouterdeepinfra/fp8	$1.3	$2.6	Source10/02/2026
	DeepSeek	Via OpenRouterdeepseek	$0.66	$1.98	Source10/02/2026
	DigitalOcean	Via OpenRouterdigitalocean	$1.32	$3.96	Source10/02/2026
	GMICloud	Via OpenRoutergmicloud/fp8	$1.056	$3.168	Source10/02/2026
	Ionstream	Via OpenRouterionstream	$0.2127	$1.7424	Source10/02/2026
	NextBit	Via OpenRouternextbit/fp8	$1.056	$3.168	Source10/02/2026
	Novita	Via OpenRouternovita/fp8	$0.99	$2.97	Source10/02/2026
	Parasail	Via OpenRouterparasail/fp8	$1.32	$3.96	Source10/02/2026
	Phala	Via OpenRouterphala	$0.957	$2.8776	Source10/02/2026
	Relace	Via OpenRouterrelace/fp4	$0.9	$2.7	Source10/02/2026
	SiliconFlow	Via OpenRoutersiliconflow/fp8	$1.32	$3.96	Source10/02/2026
	StreamLake	Via OpenRouterstreamlake	$0.66	$1.98	Source10/02/2026
	Together	Via OpenRoutertogether	$1.32	$3.96	Source10/02/2026
	Venice	Via OpenRoutervenice	$1.65	$4.95	Source10/02/2026
	Wafer	Via OpenRouterwafer	$0.33	$4.2	Source10/02/2026
DeepSeek-V4-Flash	Alibaba	Via OpenRouteralibaba	$0.176	$0.528	Source10/02/2026
	AtlasCloud	Via OpenRouteratlas-cloud/fp4	$0.44	$1.32	Source10/02/2026
	Baidu	Via OpenRouterbaidu/fp8	$0.44	$1.32	Source10/02/2026
	BaseTen	Via OpenRouterbaseten/fp8#1	$0.13	$0.26	Source10/02/2026
	BaseTen	Via OpenRouterbaseten/fp8#2	$0.13	$0.26	Source10/02/2026
	Cloudflare	Via OpenRoutercloudflare	$0.44	$1.32	Source10/02/2026
	Cohere	Via OpenRoutercohere	$0.14	$0.28	Source10/02/2026
	CoreWeave	Via OpenRoutercoreweave/fp8	$0.13	$0.28	Source10/02/2026
	DeepInfra	Via OpenRouterdeepinfra/fp8	$0.06	$0.18	Source10/02/2026
	DigitalOcean	Via OpenRouterdigitalocean	$0.119	$0.238	Source10/02/2026
	GMICloud	Via OpenRoutergmicloud/fp8	$0.286	$0.858	Source10/02/2026
	Inceptron	Via OpenRouterinceptron/fp4	$0.05	$0.65	Source10/02/2026
	Makora	Via OpenRoutermakora	$0.09	$0.195	Source10/02/2026
	Mancer 2	Via OpenRoutermancer/fp8	$0.2	$0.6	Source10/02/2026
	Morph	Via OpenRoutermorph/bf16	$0.142	$0.4	Source10/02/2026
	NextBit	Via OpenRouternextbit/fp8	$0.352	$1.056	Source10/02/2026
	Novita	Via OpenRouternovita/fp8	$0.4092	$1.2276	Source10/02/2026
	OpenInference	Via OpenRouteropen-inference/fp8	Lowest listed price: $0.0038	$1.6	Source10/02/2026
	Parasail	Via OpenRouterparasail/fp8	$0.14	$0.28	Source10/02/2026
	Phala	Via OpenRouterphala	$0.308	$0.924	Source10/02/2026
	Reka	Via OpenRouterreka	$0.021	$0.528	Source10/02/2026
	Relace	Via OpenRouterrelace/fp4	$0.0051	$1.28	Source10/02/2026
	Sail Research	Via OpenRoutersail-research/fp4	$0.019	$0.3	Source10/02/2026
	Sail Research	Via OpenRoutersail-research/us	$0.019	$0.42	Source10/02/2026
	SiliconFlow	Via OpenRoutersiliconflow/fp8	$0.22	$0.66	Source10/02/2026
	StreamLake	Via OpenRouterstreamlake/fp8	$0.044	Lowest listed price: $0.132	Source10/02/2026
	Together	Via OpenRoutertogether	$0.14	$0.28	Source10/02/2026
	Venice	Via OpenRoutervenice	$0.175	$0.35	Source10/02/2026
	Wafer	Via OpenRouterwafer/fast	$0.12	$0.7	Source10/02/2026

Performance

Shared benchmarks

Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.

Capability profile from matched benchmarks

Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.

DeepSeek-V4-Pro

DeepSeek-V4-Flash

Coding: 100 / 99.2 (1 benchmark family)

Reasoning: 100 / 98.8 (1 benchmark family)

Mathematics: 100 / 98.4 (1 benchmark family)

Knowledge: 100 / 98.7 (1 benchmark family)

Finance: 100 / 98.8 (1 benchmark family)

Legal: 100 / 98.6 (1 benchmark family)

Cybersecurity: 97.2 / 95.5 (1 benchmark family)

Health: 100 / 98.6 (1 benchmark family)

60 matched rows from 2 benchmark families were considered. The radar shows 8 of 9 comparable categories.

DeepSeek-V4-ProDeepSeek-V4-Flash

CyberBench v1.1Patch. Higher is better. No documented setup difference

DeepSeek-V4-Pro79.661 %

DeepSeek-V4-Flash72.414 %

LMArena Text, Style ControlOverall. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,457.519

DeepSeek-V4-Flash1,436.082

CyberBench v1.1PoC. Higher is better. No documented setup difference

DeepSeek-V4-Pro57.627 %

DeepSeek-V4-Flash61.017 %

LMArena Text, Style ControlOverall. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,454.675

DeepSeek-V4-Flash1,438.511

LMArena Text, Style ControlBusiness, management and finance. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,459.704

DeepSeek-V4-Flash1,438.526

LMArena Text, Style ControlBusiness, management and finance. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,448.077

DeepSeek-V4-Flash1,434.189

LMArena Text, Style ControlChinese. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,488.151

DeepSeek-V4-Flash1,471.267

LMArena Text, Style ControlChinese. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,499.718

DeepSeek-V4-Flash1,479.924

LMArena Text, Style ControlCoding. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,500.462

DeepSeek-V4-Flash1,484.094

LMArena Text, Style ControlCoding. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,487.781

DeepSeek-V4-Flash1,479.555

LMArena Text, Style ControlCreative writing. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,445.978

DeepSeek-V4-Flash1,407.791

LMArena Text, Style ControlCreative writing. Higher is better. No documented setup difference

DeepSeek-V4-Pro1,440.486

DeepSeek-V4-Flash1,410.703

Key to the marks:better valuebetter, but not conclusivetie

Our model tests

Our tests

Compare how the models respond to the same prompt. Each test shows the first attempt, with no subsequent fixes to the generated code. These results do not contribute to an overall score.

Pelican on a bicycle

A community classic for free-form SVG drawing.

DeepSeek-V4-Pro

API access was unavailable for this run. The model was not evaluated.

Reasoning (requested): high

First attempt

Run date: 7 Sept 2026
API provider: openrouter
Requested API model: deepseek/deepseek-v4-pro-0813
Reasoning setting: high
Pinned endpoint: DeepSeek | deepseek/deepseek-v4-pro-20260813
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Not run

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

DeepSeek-V4-Flash

API access was unavailable for this run. The model was not evaluated.

Reasoning (requested): high

First attempt

Run date: 7 Sept 2026
API provider: openrouter
Requested API model: deepseek/deepseek-v4-flash-0731
Reasoning setting: high
Pinned endpoint: DeepSeek | deepseek/deepseek-v4-flash-20260731
Temperature: Provider default
Token limit including reasoning: 8,192 tokens
Test protocol: community-visual-tests-v1
Technical checks: Not run

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

How to read this comparison

Winning one benchmark is not an overall verdict

Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.

The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.

Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.

More matchups

Compare DeepSeek-V4-Pro and DeepSeek-V4-Flash with other leading models using the same data and benchmark logic.

View the complete LLM comparison

Benchmark scores for DeepSeek-V4-Pro and DeepSeek-V4-Flash
Benchmark and task	DeepSeek-V4-Pro	DeepSeek-V4-Flash	Source
CyberBench v1.1Patch Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	Winner79.661 %	72.414 %	Vals AI Source details Data as of: 08/03/2026
LMArena Text, Style ControlOverall Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 57,564 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 51,871 anonymous pairwise votes.	Winner1,457.519 95% confidence interval: ±3.905The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,436.082 95% confidence interval: ±4.048The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
CyberBench v1.1PoC Test details No documented difference in the test setupVersion: 1Metric: accuracyScoring: Higher is better	57.627 %	Winner61.017 %	Vals AI Source details Data as of: 08/03/2026
LMArena Text, Style ControlOverall Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 54,884 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 51,747 anonymous pairwise votes.	Winner1,454.675 95% confidence interval: ±3.973The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,438.511 95% confidence interval: ±4.115The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlBusiness, management and finance Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 11,411 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 10,436 anonymous pairwise votes.	Winner1,459.704 95% confidence interval: ±6.73The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,438.526 95% confidence interval: ±6.971The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlBusiness, management and finance Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 11,076 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 10,641 anonymous pairwise votes.	Winner1,448.077 95% confidence interval: ±6.825The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,434.189 95% confidence interval: ±6.982The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlChinese Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 3,408 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 2,996 anonymous pairwise votes.	No clear lead1,488.151 95% confidence interval: ±10.761The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,471.267 95% confidence interval: ±11.424The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlChinese Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 3,360 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 2,992 anonymous pairwise votes.	No clear lead1,499.718 95% confidence interval: ±10.912The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,479.924 95% confidence interval: ±11.42The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlCoding Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 17,165 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 15,262 anonymous pairwise votes.	Winner1,500.462 95% confidence interval: ±5.93The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,484.094 95% confidence interval: ±6.23The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlCoding Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 16,030 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 15,239 anonymous pairwise votes.	No clear lead1,487.781 95% confidence interval: ±6.099The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,479.555 95% confidence interval: ±6.265The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlCreative writing Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 9,697 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 8,539 anonymous pairwise votes.	Winner1,445.978 95% confidence interval: ±7.296The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,407.791 95% confidence interval: ±7.543The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlCreative writing Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 9,329 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 8,638 anonymous pairwise votes.	Winner1,440.486 95% confidence interval: ±7.37The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,410.703 95% confidence interval: ±7.575The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlEnglish Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 25,176 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 23,008 anonymous pairwise votes.	Winner1,467.134 95% confidence interval: ±5.13The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,444.92 95% confidence interval: ±5.29The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlEnglish Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 23,891 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 22,908 anonymous pairwise votes.	Winner1,466.543 95% confidence interval: ±5.188The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,449.94 95% confidence interval: ±5.323The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlEntertainment, sports and media Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 12,738 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 11,179 anonymous pairwise votes.	Winner1,434.725 95% confidence interval: ±6.63The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,404.567 95% confidence interval: ±6.937The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlEntertainment, sports and media Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 12,346 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 11,428 anonymous pairwise votes.	Winner1,431.889 95% confidence interval: ±6.685The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,408.063 95% confidence interval: ±6.896The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlExcluding ties Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 43,577 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 39,226 anonymous pairwise votes.	Winner1,461.31 95% confidence interval: ±5.137The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,431.809 95% confidence interval: ±5.308The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlExcluding ties Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 41,744 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 39,391 anonymous pairwise votes.	Winner1,456.705 95% confidence interval: ±5.153The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,436.008 95% confidence interval: ±5.353The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlExpert prompts Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 5,925 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 5,392 anonymous pairwise votes.	Winner1,479.666 95% confidence interval: ±8.43The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,457.264 95% confidence interval: ±8.778The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlExpert prompts Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 5,532 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 5,311 anonymous pairwise votes.	No clear lead1,475.361 95% confidence interval: ±8.612The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,466.306 95% confidence interval: ±8.867The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlFrench Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 2,215 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 2,006 anonymous pairwise votes.	Winner1,485.521 95% confidence interval: ±14.661The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,448.483 95% confidence interval: ±15.039The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlFrench Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 2,075 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 1,966 anonymous pairwise votes.	No clear lead1,469.327 95% confidence interval: ±14.782The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,459.263 95% confidence interval: ±15.286The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlGerman Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 1,001 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 843 anonymous pairwise votes.	Winner1,468.915 95% confidence interval: ±19.454The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,424.769 95% confidence interval: ±21.221The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlGerman Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 928 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 906 anonymous pairwise votes.	No clear lead1,460.563 95% confidence interval: ±20.112The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,433.595 95% confidence interval: ±20.539The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlHard prompts Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 38,586 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 34,753 anonymous pairwise votes.	Winner1,479.844 95% confidence interval: ±4.586The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,458.919 95% confidence interval: ±4.767The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlHard prompts Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 36,977 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 34,700 anonymous pairwise votes.	Winner1,473.564 95% confidence interval: ±4.651The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,458.083 95% confidence interval: ±4.832The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlHard prompts, English Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 17,828 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 16,176 anonymous pairwise votes.	Winner1,484.732 95% confidence interval: ±5.864The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,463.433 95% confidence interval: ±6.065The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlHard prompts, English Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 16,866 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 16,039 anonymous pairwise votes.	Winner1,482.695 95% confidence interval: ±5.961The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,464.61 95% confidence interval: ±6.133The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlInstruction following Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 20,066 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 17,961 anonymous pairwise votes.	Winner1,452.218 95% confidence interval: ±5.588The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,428.187 95% confidence interval: ±5.811The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlInstruction following Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 19,090 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 18,051 anonymous pairwise votes.	Winner1,447.932 95% confidence interval: ±5.678The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,433.413 95% confidence interval: ±5.881The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlJapanese Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 714 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 647 anonymous pairwise votes.	Winner1,458.192 95% confidence interval: ±23.983The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,398.363 95% confidence interval: ±24.906The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlJapanese Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 677 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 635 anonymous pairwise votes.	No clear lead1,428.912 95% confidence interval: ±24.225The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,424.242 95% confidence interval: ±25.166The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlKorean Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 1,105 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 898 anonymous pairwise votes.	No clear lead1,417.865 95% confidence interval: ±19.032The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,392.925 95% confidence interval: ±20.977The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlKorean Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 981 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 951 anonymous pairwise votes.	Winner1,434.201 95% confidence interval: ±19.922The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,378.153 95% confidence interval: ±20.872The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlLegal and government Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 4,506 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 4,139 anonymous pairwise votes.	Winner1,473.908 95% confidence interval: ±9.549The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,447.478 95% confidence interval: ±9.874The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlLegal and government Test details No documented difference in the test setupNo clear leadVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 4,328 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 4,107 anonymous pairwise votes.	No clear lead1,473.362 95% confidence interval: ±9.718The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,457.491 95% confidence interval: ±9.927The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlLife, physical and social science Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 9,173 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 8,423 anonymous pairwise votes.	Winner1,480.892 95% confidence interval: ±7.148The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,456.345 95% confidence interval: ±7.388The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlLife, physical and social science Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 8,814 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 8,509 anonymous pairwise votes.	Winner1,479.862 95% confidence interval: ±7.218The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,459.724 95% confidence interval: ±7.418The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlLonger queries Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 25,983 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 23,359 anonymous pairwise votes.	Winner1,471.226 95% confidence interval: ±5.337The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,447.83 95% confidence interval: ±5.578The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026
LMArena Text, Style ControlLonger queries Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterDeepSeek-V4-Pro: Snapshot: deepseek-v4-pro-high-preview, Reasoning: high, Harness: Arena text, style control DeepSeek-V4-Flash: Snapshot: deepseek-v4-flash-high-preview, Reasoning: high, Harness: Arena text, style controlDeepSeek-V4-Pro: Style-controlled Arena rating from 24,788 anonymous pairwise votes.DeepSeek-V4-Flash: Style-controlled Arena rating from 23,501 anonymous pairwise votes.	Winner1,464.401 95% confidence interval: ±5.421The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,448.636 95% confidence interval: ±5.577The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	LMArena Source details Data as of: 09/25/2026