Head-to-head comparison

Gemini 3.1 Pro Preview vs. Mistral Large 3

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

shared result series: 29
distinct benchmarks: 1
latest retrieval: 2026-09-04

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 Gemini 3.1 Pro Preview and Mistral Large 3
Attribute	Gemini 3.1 Pro Preview	Mistral Large 3
Provider	Google	Mistral AI
Released	Feb 19, 2026	Dec 2, 2025
Availability	Preview	Active
Model type	Proprietary	Open Weights
Parameters	Not published	675B, 41B active
Architecture	Not published	Mixture of Experts
Context window	1,048,576 tokens	256,000 tokens
Knowledge cutoff	Not published	Not published
Technical sources	Model	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 Gemini 3.1 Pro Preview and Mistral Large 3
Price type	Gemini 3.1 Pro Preview	Mistral Large 3
API input	$2 ≤200K / $4 >200K	$0.5
API output	$12 ≤200K / $18 >200K	$1.5
Cache read	$0.2 ≤200K / $0.4 >200K	Not listed
Cache write (5 min.)	Not listed	Not listed
Cache write (1 hr.)	Not listed	Not listed
Price verified	07/30/2026 Source	07/30/2026 Source

Gemini 3.1 Pro PreviewMistral Large 3

API inputUSD per 1M tokens, base tier

Gemini 3.1 Pro Preview$2

Mistral Large 3$0.5

API outputUSD per 1M tokens, base tier

Gemini 3.1 Pro Preview$12

Mistral Large 3$1.5

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 Gemini 3.1 Pro Preview and Mistral Large 3
Model	Provider	Purchase route and tariff	Input per 1M tokens	Output per 1M tokens	Source
Gemini 3.1 Pro Preview	Google	Direct from developerUp to 200,000 context tokens	$2	$12	Source07/30/2026
	Google	Direct from developerAbove 200,000 context tokens	$4	$18	Source07/30/2026
	Google	Via OpenRoutergoogle-vertex/global	$2	$12	Source09/06/2026
	Google	Via OpenRoutergoogle-vertex/global/flex	Lowest listed price: $1	Lowest listed price: $6	Source09/06/2026
	Google	Via OpenRoutergoogle-vertex/global/priority	$3.6	$21.6	Source09/06/2026
	Google AI Studio	Via OpenRoutergoogle-ai-studio	$2	$12	Source09/06/2026
	Google AI Studio	Via OpenRoutergoogle-ai-studio/flex	Lowest listed price: $1	Lowest listed price: $6	Source09/06/2026
	Google AI Studio	Via OpenRoutergoogle-ai-studio/priority	$3.6	$21.6	Source09/06/2026
Mistral Large 3	Mistral AI	Direct from developerStandard API	Lowest listed price: $0.5	Lowest listed price: $1.5	Source07/30/2026
	Mistral	Via OpenRoutermistral	Lowest listed price: $0.5	Lowest listed price: $1.5	Source09/06/2026
	Mistral	Via OpenRoutermistral/eu	$0.55	$1.65	Source09/06/2026
	Mistral	Via OpenRoutermistral/zdr	Lowest listed price: $0.5	Lowest listed price: $1.5	Source09/06/2026

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.

Gemini 3.1 Pro Preview

Mistral Large 3

Coding: 100 / 96.5 (1 benchmark family)

Reasoning: 100 / 94.9 (1 benchmark family)

Mathematics: 100 / 94.9 (1 benchmark family)

Knowledge: 100 / 94.5 (1 benchmark family)

Finance: 100 / 95.7 (1 benchmark family)

Legal: 100 / 94.9 (1 benchmark family)

Health: 100 / 95.3 (1 benchmark family)

General: 100 / 94.3 (1 benchmark family)

29 matched rows from 1 benchmark families were considered. The radar shows 8 of 8 comparable categories.

Gemini 3.1 Pro PreviewMistral Large 3

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

Gemini 3.1 Pro Preview1,486.746

Mistral Large 31,413.556

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

Gemini 3.1 Pro Preview1,476.52

Mistral Large 31,412.721

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

Gemini 3.1 Pro Preview1,530.803

Mistral Large 31,431.759

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

Gemini 3.1 Pro Preview1,521.238

Mistral Large 31,468.587

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

Gemini 3.1 Pro Preview1,479.063

Mistral Large 31,375.017

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

Gemini 3.1 Pro Preview1,488.416

Mistral Large 31,426.818

LMArena Text, Style ControlEntertainment, sports and media. Higher is better. No documented setup difference

Gemini 3.1 Pro Preview1,466.085

Mistral Large 31,373.228

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

Gemini 3.1 Pro Preview1,500.846

Mistral Large 31,400.876

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

Gemini 3.1 Pro Preview1,508.867

Mistral Large 31,423.349

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

Gemini 3.1 Pro Preview1,502.059

Mistral Large 31,434.923

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

Gemini 3.1 Pro Preview1,493.945

Mistral Large 31,404.512

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

Gemini 3.1 Pro Preview1,507.024

Mistral Large 31,431.026

Key to the marks:better valuebetter, but not conclusivetie

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 Gemini 3.1 Pro Preview and Mistral Large 3 with other leading models using the same data and benchmark logic.

View the complete LLM comparison

Benchmark scores for Gemini 3.1 Pro Preview and Mistral Large 3
Benchmark and task	Gemini 3.1 Pro Preview	Mistral Large 3	Source
LMArena Text, Style ControlOverall Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 102,763 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 65,336 anonymous pairwise votes.	Winner1,486.746 95% confidence interval: ±3.217The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,413.556 95% confidence interval: ±3.08The 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: 09/01/2026
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 betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 20,283 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 12,392 anonymous pairwise votes.	Winner1,476.52 95% confidence interval: ±5.472The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,412.721 95% confidence interval: ±5.917The 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: 09/01/2026
LMArena Text, Style ControlChinese Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 6,195 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 4,483 anonymous pairwise votes.	Winner1,530.803 95% confidence interval: ±8.555The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,431.759 95% confidence interval: ±9.282The 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: 09/01/2026
LMArena Text, Style ControlCoding Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 28,421 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 16,301 anonymous pairwise votes.	Winner1,521.238 95% confidence interval: ±4.96The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,468.587 95% confidence interval: ±5.241The 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: 09/01/2026
LMArena Text, Style ControlCreative writing Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 17,931 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 10,954 anonymous pairwise votes.	Winner1,479.063 95% confidence interval: ±5.907The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,375.017 95% confidence interval: ±6.318The 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: 09/01/2026
LMArena Text, Style ControlEnglish Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 46,126 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 27,473 anonymous pairwise votes.	Winner1,488.416 95% confidence interval: ±4.243The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,426.818 95% confidence interval: ±4.282The 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: 09/01/2026
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 betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 22,824 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 13,723 anonymous pairwise votes.	Winner1,466.085 95% confidence interval: ±5.435The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,373.228 95% confidence interval: ±5.71The 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: 09/01/2026
LMArena Text, Style ControlExcluding ties Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 77,271 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 47,430 anonymous pairwise votes.	Winner1,500.846 95% confidence interval: ±4.346The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,400.876 95% confidence interval: ±4.294The 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: 09/01/2026
LMArena Text, Style ControlExpert prompts Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 10,205 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 5,705 anonymous pairwise votes.	Winner1,508.867 95% confidence interval: ±6.993The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,423.349 95% confidence interval: ±8.346The 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: 09/01/2026
LMArena Text, Style ControlFrench Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 3,496 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 1,858 anonymous pairwise votes.	Winner1,502.059 95% confidence interval: ±12.384The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,434.923 95% confidence interval: ±15.523The 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: 09/01/2026
LMArena Text, Style ControlGerman Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 1,768 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 1,080 anonymous pairwise votes.	Winner1,493.945 95% confidence interval: ±15.715The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,404.512 95% confidence interval: ±19.03The 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: 09/01/2026
LMArena Text, Style ControlHard prompts Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 66,600 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 39,237 anonymous pairwise votes.	Winner1,507.024 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.	1,431.026 95% confidence interval: ±3.848The 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: 09/01/2026
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 betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 30,707 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 16,526 anonymous pairwise votes.	Winner1,505.54 95% confidence interval: ±4.906The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,438.338 95% confidence interval: ±5.247The 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: 09/01/2026
LMArena Text, Style ControlInstruction following Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 34,679 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 20,253 anonymous pairwise votes.	Winner1,480.715 95% confidence interval: ±4.654The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,399.916 95% confidence interval: ±4.811The 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: 09/01/2026
LMArena Text, Style ControlJapanese Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 1,160 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 661 anonymous pairwise votes.	Winner1,495.352 95% confidence interval: ±19.586The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,382.813 95% confidence interval: ±24.568The 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: 09/01/2026
LMArena Text, Style ControlKorean Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 1,854 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 1,118 anonymous pairwise votes.	Winner1,460.371 95% confidence interval: ±15.879The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,355.204 95% confidence interval: ±19.178The 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: 09/01/2026
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 betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 8,416 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 4,880 anonymous pairwise votes.	Winner1,496.16 95% confidence interval: ±7.523The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,420.347 95% confidence interval: ±8.946The 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: 09/01/2026
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 betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 17,014 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 10,595 anonymous pairwise votes.	Winner1,511.7 95% confidence interval: ±5.722The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,427.433 95% confidence interval: ±6.173The 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: 09/01/2026
LMArena Text, Style ControlLonger queries Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 44,135 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 23,193 anonymous pairwise votes.	Winner1,499.421 95% confidence interval: ±4.563The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,416.784 95% confidence interval: ±4.746The 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: 09/01/2026
LMArena Text, Style ControlMath Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 5,400 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 3,755 anonymous pairwise votes.	Winner1,488.603 95% confidence interval: ±8.751The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,402.864 95% confidence interval: ±9.902The 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: 09/01/2026
LMArena Text, Style ControlMathematical professions Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 5,553 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 3,175 anonymous pairwise votes.	Winner1,484.657 95% confidence interval: ±8.955The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,417.813 95% confidence interval: ±10.98The 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: 09/01/2026
LMArena Text, Style ControlMedicine and healthcare Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 7,650 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 4,505 anonymous pairwise votes.	Winner1,502.411 95% confidence interval: ±7.878The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,431.127 95% confidence interval: ±9.388The 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: 09/01/2026
LMArena Text, Style ControlMulti-turn Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 17,803 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 11,201 anonymous pairwise votes.	Winner1,494.475 95% confidence interval: ±5.726The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,420.712 95% confidence interval: ±6.145The 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: 09/01/2026
LMArena Text, Style ControlNon-English Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 56,633 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 37,859 anonymous pairwise votes.	Winner1,479.804 95% confidence interval: ±3.961The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,397.941 95% confidence interval: ±3.805The 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: 09/01/2026
LMArena Text, Style ControlPolish Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 2,110 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 1,582 anonymous pairwise votes.	Winner1,494.077 95% confidence interval: ±13.426The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,415.726 95% confidence interval: ±15.021The 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: 09/01/2026
LMArena Text, Style ControlRussian Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 11,004 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 7,429 anonymous pairwise votes.	Winner1,499.732 95% confidence interval: ±6.696The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,409.803 95% confidence interval: ±7.118The 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: 09/01/2026
LMArena Text, Style ControlSoftware and IT services Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 40,558 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 24,350 anonymous pairwise votes.	Winner1,511.753 95% confidence interval: ±4.414The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,456.163 95% confidence interval: ±4.498The 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: 09/01/2026
LMArena Text, Style ControlSpanish Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 3,406 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 1,998 anonymous pairwise votes.	Winner1,480.446 95% confidence interval: ±11.644The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,406.852 95% confidence interval: ±14.343The 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: 09/01/2026
LMArena Text, Style ControlWriting, literature and language Test details No documented difference in the test setupVersion: style-control-v1Metric: style-controlled Bradley-Terry ratingScoring: Higher is betterGemini 3.1 Pro Preview: Snapshot: gemini-3.1-pro-preview, Harness: Arena text, style control Mistral Large 3: Snapshot: mistral-large-3, Harness: Arena text, style controlGemini 3.1 Pro Preview: Style-controlled Arena rating from 25,434 anonymous pairwise votes.Mistral Large 3: Style-controlled Arena rating from 15,693 anonymous pairwise votes.	Winner1,480.011 95% confidence interval: ±5.156The Arena score measures human preference rather than a fixed capability test. The confidence interval and model configuration are part of the result.	1,390.534 95% confidence interval: ±5.355The 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: 09/01/2026
Key to the marks:better valuebetter, but not conclusivetie