Noometry

Model comparison

Gemini 3.1 Pro Preview vs Mistral Large 3

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 39.1 on the Noometry Index. Mistral Large 3 costs 12× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Last verified . 23 shared benchmarks.

Gemini 3.1 Pro Preview Google

56.7

Rank #23 Confirmed

Mistral Large 3 Mistral AI

39.1

Rank #176 Confirmed

Summary

  • They share 23 benchmarks with published results for both. Gemini 3.1 Pro Preview scores higher in 8 categories and Mistral Large 3 in 1 category; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.1 Pro Preview leads 71.7 to 15.2.
  • The biggest single-benchmark swing is NYT Connections (extended): 97.4% for Gemini 3.1 Pro Preview and 7.5% for Mistral Large 3.
  • Mistral Large 3 is cheaper at $0.25 / $0.75 per million input/output tokens, against $2 / $12 for Gemini 3.1 Pro Preview.
  • Gemini 3.1 Pro Preview accepts more context: 1.05M tokens versus 262K.
  • Mistral Large 3 has downloadable open weights; the other is API-only.

Side by side

Gemini 3.1 Pro PreviewMistral Large 3
ProviderGoogleMistral AI
Noometry Index56.739.1
Released2026-02-192025-12-02
WeightsProprietaryOpen
Context window1.05M262K
Max output66K8K
Input $ / M tokens$2$0.25
Output $ / M tokens$12$0.75
Results tracked7124

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Category by category

Coding Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 42.5 (#99), Mistral Large 3: 34.4 (#237)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena WebDev14471230
LMArena Coding14841448
SWE-bench Verified75.6%—
DeepSWE11.7%—
SciCode58.9%—
GSO22.6%—
WeirdML72.1%—
MirrorCode8.9%—
ALE-Bench1,161—
AlgoTune2.02—

Agentic & Tool Use Not comparable

Gemini 3.1 Pro Preview: 37.7 (#34), Mistral Large 3: —

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
Terminal-Bench80.2%—
APEX-Agents35.3%—
τ²-bench Banking26%—
DeepResearch Bench47.8%—
PostTrainBench22%—
BALROG57%—
ExploitBench26.1%—
GBAEval0.8%—
GDP.pdf17%—
LMArena Search1211—
METR Time Horizons77%—
Vending-Bench 23,774—

Reasoning Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.7 (#12), Mistral Large 3: 15.2 (#319)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
NYT Connections (extended)97.4%7.5%
Thematic Generalization79.4%23%
LMArena Hard Prompts14851429
ARC-AGI-277.1%—
SimpleBench79.6%—
Kagi LLM Benchmark—50.9%
ARC-AGI-198%—
CritPt17.7%—
Chess Puzzles55%—
EnigmaEval36.8%—
EBR-Bench14.3%—
Mystery Game Puzzles34%—
DTBench97.1%—
LMCA53.8%—
Epoch Capabilities Index154.77—
ForecastBench59—

Math Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 62.1 (#34), Mistral Large 3: 38.7 (#129)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena Math14851414
FrontierMath (Tiers 1-3)59.6%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions86.5%—
OTIS Mock AIME 2024-202595.6%—
ProofBench26%—
FrontierMath (Feb 2025 set)36.9%—
FrontierMath Tier 4 (v1)16.7%—

Knowledge Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 71.8 (#3), Mistral Large 3: 36.0 (#177)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
Vectara Hallucination Rate10.4%14.5%
LMArena Expert14851421
GPQA Diamond94.4%—
Humanity's Last Exam46.4%—
SimpleQA Verified73.5%—

Multimodal Too close to call

Gemini 3.1 Pro Preview: 37.9 (#69), Mistral Large 3: 38.2 (#66)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena Vision12961221
Blueprint-Bench 226.5%—
Furniture Assembly26.7%—
LMArena Document1444—

Multilingual Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 57.0 (#12), Mistral Large 3: 52.5 (#84)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena Non-English14771413
LMArena Chinese15291447
LMArena French14871455
LMArena German14911437
LMArena Japanese14931394
LMArena Korean14551384
LMArena Russian14981411
LMArena Spanish14791440

Instruction Following Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 77.0 (#32), Mistral Large 3: 74.0 (#108)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena Instruction Following14661403

Long Context Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 47.4 (#18), Mistral Large 3: 43.1 (#105)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena Longer Query14831413
CL-bench20.8%—
CL-bench Life16.9%—

Writing & Preference Gemini 3.1 Pro Preview leads

Gemini 3.1 Pro Preview: 66.1 (#37), Mistral Large 3: 60.0 (#101)

BenchmarkGemini 3.1 Pro PreviewMistral Large 3
LMArena Text14811428
LMArena Creative Writing14821386
EQ-Bench Creative Writing14911412
LMArena Multi-Turn14881429
EQ-Bench 41142—

Frequently asked questions

Is Gemini 3.1 Pro Preview better than Mistral Large 3?

Gemini 3.1 Pro Preview is the stronger model overall, scoring 56.7 to 39.1 on the Noometry Index. Mistral Large 3 costs 12× less per token, which makes it the better buy when Gemini 3.1 Pro Preview's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.1 Pro Preview or Mistral Large 3?

Mistral Large 3 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Gemini 3.1 Pro Preview lists at $2 and $12.

Is Gemini 3.1 Pro Preview or Mistral Large 3 better for coding?

Gemini 3.1 Pro Preview scores higher on coding benchmarks: 42.5 versus 34.4 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.1 Pro Preview does, with 1.05M tokens against 262K.

How many benchmarks do Gemini 3.1 Pro Preview and Mistral Large 3 share?

23 benchmarks have published results for both models. Gemini 3.1 Pro Preview has 71 scored results on Noometry and Mistral Large 3 has 24.

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