OpenAIDeepSeekLLM matchup

GPT-5.4 minivs.DeepSeek-V4.1-Flash

Which one is better?

DeepSeek-V4.1-Flash performs better than GPT-5.4 mini and is cheaper: GPT-5.4 mini costs 5 times (input) and 7.5 times (output) as much.

DeepSeek-V4.1-Flash ahead

IntelligenceOverall index, 100 points = average

75.6

GPT-5.4 mini

Rank 56

99.7

DeepSeek-V4.1-Flash

Rank 29

about as fast

SpeedTokens per second

191

GPT-5.4 mini

176

DeepSeek-V4.1-Flash

DeepSeek-V4.1-Flash cheaper

Price$ per 1M tokens

$1.69

GPT-5.4 mini

$0.26

DeepSeek-V4.1-Flash

GPT-5.4 mini more popular

Popularity0 to 100

GPT-5.4 mini

Rank 45 of 876

DeepSeek-V4.1-Flash

Rank 312 of 876

Choose GPT-5.4 mini for

No clear advantage

Choose DeepSeek-V4.1-Flash for

FinanceLegalAgentsCodingMultimodalGeneral

Where is the difference?

Strengths at a glance

GPT-5.4 miniDeepSeek-V4.1-FlashMedian of all ranked models

CodingDeepSeek-V4.1-Flash ahead

GPT-5.4 mini75.8Rank 65

DeepSeek-V4.1-Flash98.8Rank 30

Median of ranked models84.1

95 % range: GPT-5.4 mini 71.9 to 79.8, DeepSeek-V4.1-Flash 91.4 to 106.3.

AreaGPT-5.4 miniDeepSeek-V4.1-Flash

The same values and verdicts as the bars below. In the close-up the net starts at 65 points, just below the weaker model's lowest value; the reference group average is 100. Not in the net because a model has no own value there or the data are too thin: Reasoning, Mathematics, Knowledge, Health.

DeepSeek-V4.1-Flash is ahead in 6 of 10 areas, GPT-5.4 mini in none.

too little data: 4DeepSeek-V4.1-Flash ahead: 6

Areas in the overall index

AgentsDeepSeek-V4.1-Flash +2779.0 to 106.4

CodingDeepSeek-V4.1-Flash +2375.8 to 98.8

MultimodalDeepSeek-V4.1-Flash +1976.5 to 95.7

GeneralDeepSeek-V4.1-Flash +1780.4 to 97.1

Reasoningonly GPT-5.4 mini has a score

Mathematicsonly DeepSeek-V4.1-Flash has a score

Knowledgeonly GPT-5.4 mini has a score

Specialist fields

FinanceDeepSeek-V4.1-Flash +2875.7 to 103.7

LegalDeepSeek-V4.1-Flash +2873.1 to 100.8

Healthonly DeepSeek-V4.1-Flash has a score

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Show 3 more areas that do not count toward the overall index

Cybersecurityonly DeepSeek-V4.1-Flash has a score

Productivityonly DeepSeek-V4.1-Flash has a score

Educationonly DeepSeek-V4.1-Flash has a score

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Which model for which task?

Everyday tasks, translated from the area values above. Each row names the values it rests on.

TaskBetter choicebased on

Writing and debugging codeDeepSeek-V4.1-FlashCoding 75.8 to 98.8

Maths and data analysisopenMathematics without a score for GPT-5.4 mini, Reasoning without a score for DeepSeek-V4.1-Flash

Facts and researchopenKnowledge without a score for DeepSeek-V4.1-Flash

Agents and workflowsDeepSeek-V4.1-FlashAgents 79.0 to 106.4

Fast chat repliesabout the same191 to 176 tokens per second

Security analysisopenCybersecurity without a score for GPT-5.4 mini

Many requests on a small budgetDeepSeek-V4.1-Flash$1.69 to $0.26 per 1M tokens

Finance, legal and medical textsDeepSeek-V4.1-FlashFinance 75.7 to 103.7, Legal 73.1 to 100.8, Health without a score for GPT-5.4 mini

Images, screenshots and PDFsDeepSeek-V4.1-FlashMultimodal 76.5 to 95.7

See for yourself: same task, one attempt

The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.

Pelican on a bicycle

Prompt

Generate an SVG of a pelican riding a bicycle

Task origin: Simon Willison

GPT-5.4 mini

Oct 2, 2026 · 14 s · $0.01

Test details

Run date: Oct 2, 2026
API provider: openrouter
Requested API model: openai/gpt-5.4-mini
Reasoning setting: high
Token limit including reasoning: 8,192 tokens
Output tokens: 3,142 tokens
Cost of the attempt: $0.0142
Response time: 13.5 s
API model reported in response: openai/gpt-5.4-mini
Pinned endpoint: OpenAI | openai/gpt-5.4-mini-20260317
Temperature: Provider default
Test protocol: community-visual-tests-v1
Technical checks: Passed, not a quality rating

Visually reviewed. This individual test does not establish overall model quality.

Earlier attempts (2)

Oct 1, 2026API request failedReasoning setting: high
Sep 7, 2026API request failedReasoning setting: high

DeepSeek-V4.1-Flash

The response reached the token limit. No complete recording is available.

Oct 5, 2026 · 26 s · $0.0049

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

Test details

Run date: Oct 5, 2026
API provider: openrouter
Requested API model: deepseek/deepseek-v4.1-flash
Reasoning setting: high
Token limit including reasoning: 8,192 tokens
Output tokens: 8,191 tokens
Cost of the attempt: $0.0049
Response time: 25.8 s
API model reported in response: deepseek/deepseek-v4.1-flash
Pinned endpoint: DeepSeek | deepseek/deepseek-v4.1-flash-20260910
Temperature: Provider default
Test protocol: community-visual-tests-v1
Technical checks: Failed

Earlier attempts (2)

Oct 2, 2026API request failedReasoning setting: high
Oct 1, 2026API request failedReasoning setting: high

SVG short test

One SVG task with the same fixed settings for every model, without hidden thinking.

Prompt

Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.

GPT-5.4 mini

Unavailable in this round

DeepSeek-V4.1-Flash

GPT-5.4 mini and DeepSeek-V4.1-Flash in the overall index

Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.

Overall index (Gradually Meta-Score v4)

20 of 92 models

5 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.

Claude Opus 5.5max126.1

Gemini 4 Carbonhigh125.8

Claude Fable 5.1max123.8

Claude Sonnet 5.5max122.8

Gemini 4 Argonhigh122.3

GPT-6 Astramax121.3

GPT-6.1 Solmax119.2

Muse Wonder Fullmax118.3

Claude Opus 5max117.2

Muse Wondermax113.4

Kimi K3.1 Promax112.9

Claude Fable 5max112.5

GPT-6 Solmax110.5

GPT-5.6 Solmax108.7

Muse Spark 1.3max107.4

Gemini 3.7 Flashhigh107.1

DeepSeek V4.1 Flash 1017max106.6

Gemini 3.8 Flashhigh106.5

DeepSeek-V4.1-Flashmax99.7

GPT-5.4 minixhigh75.6

Claude Opus 5.5

Gemini 4 Carbon

Claude Fable 5.1

Claude Sonnet 5.5

Gemini 4 Argon

GPT-6 Astra

GPT-6.1 Sol

Muse Wonder Full

Claude Opus 5

Muse Wonder

Kimi K3.1 Pro

Claude Fable 5

GPT-6 Sol

GPT-5.6 Sol

Muse Spark 1.3

Gemini 3.7 Flash

DeepSeek V4.1 Flash 1017

Gemini 3.8 Flash

DeepSeek-V4.1-Flash

GPT-5.4 mini

Popularity compared

How often the models are searched for, used and mentioned, on a scale from 0 to 100.

GPT-5.4 mini is more popular than DeepSeek-V4.1-Flash: 59 to 38 out of 100.

Over time

Weekly values from October 18, 2026 to November 6, 2026

GPT-5.4 miniDeepSeek-V4.1-Flash

All data side by side

The better value is bold. For the overall index only when the gap is clear.

Metric	GPT-5.4 mini	DeepSeek-V4.1-Flash
Intelligence
Overall indexpoints, 100 = reference group average, higher is better	75.6	99.7
Rank	Rank 56 of 92	Rank 29 of 92
Price per 1M tokens
Inputwhat you send	$0.75	$0.15
Outputwhat the model writes	$4.50	$0.60
Speed
Tokens per second	191	176
Popularity
Popularitysearch, usage and mentions, 0 to 100	59Rank 45 of 876	38Rank 312 of 876
Technical
Context windowhow much text the model reads at once	400,000 tokens≈ 600 A4 pages	1 M tokens≈ 1,500 A4 pages
Knowledge cutoff	Aug 31, 2025	n/a
Released	Mar 17, 2026	Sep 10, 2026
Availability	Active	Active
Open weights	no	yes

DeepSeek-V4.1-Flash: At peak times (Mon, Tue, Wed, Thu, Fri, 01:00-04:00 UTC; Mon, Tue, Wed, Thu, Fri, 06:00-10:00 UTC) the price is $0.30 input and $1.20 output per 1M tokens. The table shows the off-peak price.

Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis

Is there a better choice?

Successor of DeepSeek-V4.1-FlashDeepSeek V4.1 Flash 1017

Overall index 106.6, rank 17$0.15 input and $0.60 output per 1M tokens

GPT-5.4 mini vs. DeepSeek V4.1 Flash 1017

Cheaper than DeepSeek-V4.1-FlashClaude Haiku 5.5

Overall index 103.4, rank 20$0.10 input and $0.50 output per 1M tokens

DeepSeek-V4.1-Flash vs. Claude Haiku 5.5

Best model in the overall indexClaude Opus 5.5

Overall index 126.1, rank 1$4 input and $20 output per 1M tokens

DeepSeek-V4.1-Flash vs. Claude Opus 5.5

Shared benchmarks

Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.

A: GPT-5.4 miniB: DeepSeek-V4.1-Flash

Code MigrationOverall · higher is betterTest setup not documented as identical12.9%45.6%Vals AIAs of 10/29/2026

EMBOverall · higher is betterTest setup not documented as identical45.4%57.2%Vals AIAs of 10/20/2026

Finance Agent (v2)Overall · higher is betterTest setup not documented as identical45.4%53.5%Vals AIAs of 10/29/2026

GDPval-AAOverall · higher is better597.2 elo1,348.7 eloArtificial AnalysisAs of 11/06/2026

Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identical12.5%41.3%Vals AIAs of 11/05/2026

LMArena Code Arena WebDevOverall · higher is betterTest setup not documented as identical1,3971,619LMArenaAs of 10/28/2026

LMArena Text, Style ControlOverall · higher is betterTest setup not documented as identical1,4471,476LMArenaAs of 10/28/2026

LMArena Vision, Style ControlOverall · higher is betterTest setup not documented as identical1,2501,261LMArenaAs of 10/19/2026

MMMU-ProOverall · higher is better60.5%65.6%Artificial AnalysisAs of 11/06/2026

ProgramBenchOverall · higher is betterTest setup not documented as identical0.0%0.5%Vals AIAs of 11/05/2026

Show 54 more benchmarks

Tax Agent BenchOverall · higher is betterTest setup not documented as identical8.8%26.6%Vals AIAs of 11/05/2026

Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identical2.5%19.7%Vals AIAs of 11/05/2026

Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identical48.0%84.7%Vals AIAs of 11/05/2026

Code MigrationCLI · higher is betterTest setup not documented as identical8.2%37.5%Vals AIAs of 10/29/2026

EMBComps · higher is betterTest setup not documented as identical40.5%43.9%Vals AIAs of 10/20/2026

Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identical45.4%49.2%Vals AIAs of 10/29/2026

Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identical15.2%53.0%Vals AIAs of 11/05/2026

LMArena Code Arena WebDevHTML development · higher is betterTest setup not documented as identical1,4191,613LMArenaAs of 10/28/2026

LMArena Text, Style ControlBusiness, management and finance · higher is betterTest setup not documented as identical1,4591,478LMArenaAs of 10/28/2026

LMArena Vision, Style ControlChinese · higher is betterTest setup not documented as identical1,2851,311LMArenaAs of 10/19/2026

ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identical3.0%16.5%Vals AIAs of 11/05/2026

Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identical3.3%3.3%Vals AIAs of 11/05/2026

Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identical0%0%Vals AIAs of 11/05/2026

Code MigrationCOBOL · higher is betterTest setup not documented as identical27.1%70.0%Vals AIAs of 10/29/2026

EMBDataroom · higher is betterTest setup not documented as identical48.3%73.9%Vals AIAs of 10/20/2026

Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identical32.4%41.1%Vals AIAs of 10/29/2026

Legal Research BenchAdministrative / Regulatory · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identical69.7%89.1%Vals AIAs of 11/05/2026

LMArena Code Arena WebDevReact development · higher is betterTest setup not documented as identical1,3861,629LMArenaAs of 10/28/2026

LMArena Text, Style ControlChinese · higher is betterTest setup not documented as identical1,4741,523LMArenaAs of 10/28/2026

LMArena Vision, Style ControlCreative writing with images · higher is betterTest setup not documented as identical1,2261,254LMArenaAs of 10/19/2026

ProgramBenchFully Resolved · higher is betterTest setup not documented as identical0.0%0.5%Vals AIAs of 11/05/2026

Tax Agent BenchControversy & Precedence Analysis (weighted pass) · higher is betterTest setup not documented as identical32.2%52.8%Vals AIAs of 11/05/2026

Terminal-Bench 4.0Media · higher is betterTest setup not documented as identical0.0%8.3%Vals AIAs of 11/05/2026

Code MigrationCode Quality · higher is betterTest setup not documented as identical3.053 / 54.411 / 5Vals AIAs of 10/29/2026

EMBDCF · higher is betterTest setup not documented as identical40.6%51.0%Vals AIAs of 10/20/2026

Finance Agent (v2)Comparables · higher is betterTest setup not documented as identical40.3%46.1%Vals AIAs of 10/29/2026

Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identical11.6%39.5%Vals AIAs of 11/05/2026

LMArena Code Arena WebDevWeb development · higher is betterTest setup not documented as identical1,3971,619LMArenaAs of 10/28/2026

LMArena Text, Style ControlCoding · higher is betterTest setup not documented as identical1,4951,523LMArenaAs of 10/28/2026

LMArena Vision, Style ControlDiagram understanding · higher is betterTest setup not documented as identical1,2831,293LMArenaAs of 10/19/2026

ProgramBenchRaw Pass Rate · higher is betterTest setup not documented as identical54.4%72.0%Vals AIAs of 11/05/2026

Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identical10%39%Vals AIAs of 11/05/2026

Terminal-Bench 4.0ML · higher is betterTest setup not documented as identical0.0%24.2%Vals AIAs of 11/05/2026

EMBLBO · higher is betterTest setup not documented as identical41.6%54.2%Vals AIAs of 10/20/2026

Finance Agent (v2)Disclosure Analysis · higher is betterTest setup not documented as identical48.3%61.3%Vals AIAs of 10/29/2026

Legal Research BenchBusiness & Commercial · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identical71.2%86.7%Vals AIAs of 11/05/2026

LMArena Text, Style ControlCreative writing · higher is betterTest setup not documented as identical1,4021,441LMArenaAs of 10/28/2026

LMArena Vision, Style ControlEnglish · higher is betterTest setup not documented as identical1,2481,268LMArenaAs of 10/19/2026

Tax Agent BenchCurrent & Temporal Analysis (weighted pass) · higher is betterTest setup not documented as identical38.6%71.9%Vals AIAs of 11/05/2026

Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identical0.0%18.5%Vals AIAs of 11/05/2026

EMBM&A · higher is betterTest setup not documented as identical49.8%57.8%Vals AIAs of 10/20/2026

Finance Agent (v2)Earnings Analysis · higher is betterTest setup not documented as identical65.3%72.9%Vals AIAs of 10/29/2026

Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identical14.8%48.1%Vals AIAs of 11/05/2026

LMArena Text, Style ControlEnglish · higher is betterTest setup not documented as identical1,4501,488LMArenaAs of 10/28/2026

LMArena Vision, Style ControlHomework · higher is betterTest setup not documented as identical1,2911,307LMArenaAs of 10/19/2026

Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identical7.0%27.2%Vals AIAs of 11/05/2026

Terminal-Bench 4.0Science · higher is betterTest setup not documented as identical2.4%14.3%Vals AIAs of 11/05/2026

EMBMisc · higher is betterTest setup not documented as identical46.3%53.6%Vals AIAs of 10/20/2026

Finance Agent (v2)Financial Modeling · higher is betterTest setup not documented as identical19.6%23.1%Vals AIAs of 10/29/2026

Legal Research BenchCivil Litigation · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identical67.3%87.1%Vals AIAs of 11/05/2026

LMArena Text, Style ControlEntertainment, sports and media · higher is betterTest setup not documented as identical1,4091,450LMArenaAs of 10/28/2026

LMArena Vision, Style ControlHumor · higher is betterTest setup not documented as identical1,2371,243LMArenaAs of 10/19/2026

Tax Agent BenchFact-Pattern Analysis (weighted pass) · higher is betterTest setup not documented as identical36.5%60.6%Vals AIAs of 11/05/2026

Terminal-Bench 4.0Security · higher is betterTest setup not documented as identical0.0%6.7%Vals AIAs of 11/05/2026

More comparisons

Compare GPT-5.4 mini and DeepSeek-V4.1-Flash with the models people compare them with most often.

GPT-5.4 minivs.DeepSeek-V4.1-Flash

Choose GPT-5.4 mini for

Choose DeepSeek-V4.1-Flash for

Where is the difference?

Strengths at a glance

Which model for which task?

See for yourself: same task, one attempt

Pelican on a bicycle

SVG short test

GPT-5.4 mini

DeepSeek-V4.1-Flash

GPT-5.4 mini and DeepSeek-V4.1-Flash in the overall index

Overall index (Gradually Meta-Score v4)

Popularity compared

Over time

All data side by side

Is there a better choice?

Shared benchmarks

More comparisons

Compare another matchup

Predecessor and successor

The most popular comparisons