Noometry

Model comparison

Gemini 3 Flash Preview vs Mistral Medium 3.5

Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 40.2 on the Noometry Index.

Last verified . 20 shared benchmarks.

Gemini 3 Flash Preview Google

52.3

Rank #40 Confirmed

Mistral Medium 3.5 Mistral AI

40.2

Rank #152 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Gemini 3 Flash Preview scores higher in 9 categories and Mistral Medium 3.5 in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3 Flash Preview leads 49.2 to 17.3.
  • The biggest single-benchmark swing is NYT Connections (extended): 83.1% for Gemini 3 Flash Preview and 12.9% for Mistral Medium 3.5.
  • Gemini 3 Flash Preview is cheaper at $0.50 / $3 per million input/output tokens, against $1.50 / $7.50 for Mistral Medium 3.5.
  • Gemini 3 Flash Preview accepts more context: 1.05M tokens versus 262K.
  • Mistral Medium 3.5 has downloadable open weights; the other is API-only.

Side by side

Gemini 3 Flash PreviewMistral Medium 3.5
ProviderGoogleMistral AI
Noometry Index52.340.2
Released2025-12-17—
WeightsProprietaryOpen
Context window1.05M262K
Max output66K210K
Input $ / M tokens$0.50$1.50
Output $ / M tokens$3$7.50
Results tracked5922

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Category by category

Coding Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 50.9 (#42), Mistral Medium 3.5: 36.0 (#213)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena WebDev14391264
LMArena Coding14601461
SWE-bench Verified75.4%—
SWE-bench Verified (bash only)75.8%—
SWE-bench Multilingual72.7%—
GSO9.8%—
WeirdML61.6%—
ALE-Bench1,367—

Agentic & Tool Use Not comparable

Gemini 3 Flash Preview: 38.7 (#29), Mistral Medium 3.5: —

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
Terminal-Bench64.3%—
τ²-bench Airline82.5%—
τ²-bench Banking27.3%—
τ²-bench Retail76.8%—
τ²-bench Telecom91.2%—
DeepResearch Bench49.8%—
BALROG48.1%—
GDP.pdf10%—
LMArena Search1198—
Vending-Bench 23,635—

Reasoning Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 49.2 (#37), Mistral Medium 3.5: 17.3 (#295)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
NYT Connections (extended)83.1%12.9%
LMArena Hard Prompts14651436
Epoch Capabilities Index151.8141.35
ARC-AGI-233.6%—
SimpleBench61.1%—
Kagi LLM Benchmark—41.4%
ARC-AGI-184.7%—
Chess Puzzles40%—
Mystery Game Puzzles26%—
DTBench89.1%—
LMCA43.1%—
ForecastBench58.5—

Math Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 51.7 (#55), Mistral Medium 3.5: 39.1 (#113)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Math14731431
FrontierMath (Tiers 1-3)51.2%—
FrontierMath Tier 417.1%—
MathArena Final-Answer Competitions67.6%—
OTIS Mock AIME 2024-202595.6%—
ProofBench15%—
FrontierMath (Feb 2025 set)35.6%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 58.8 (#33), Mistral Medium 3.5: 40.0 (#126)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Expert14621432
GPQA Diamond89.4%—
SimpleQA Verified66.8%—
Vectara Hallucination Rate13.5%—

Multimodal Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 45.5 (#16), Mistral Medium 3.5: 38.3 (#65)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Vision12851223
GeoBench88%—
VPCT72.6%—
Blueprint-Bench 20%—
LMArena Document1413—

Multilingual Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 55.7 (#27), Mistral Medium 3.5: 51.9 (#100)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Non-English14581404
LMArena Chinese15111442
LMArena French14771448
LMArena German14971451
LMArena Korean14431385
LMArena Russian14801395
LMArena Spanish14691409
LMArena Japanese1489—

Instruction Following Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 75.7 (#56), Mistral Medium 3.5: 74.6 (#90)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Instruction Following14371415

Long Context Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 44.4 (#67), Mistral Medium 3.5: 43.2 (#103)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Longer Query14521415

Writing & Preference Gemini 3 Flash Preview leads

Gemini 3 Flash Preview: 65.5 (#45), Mistral Medium 3.5: 58.5 (#117)

BenchmarkGemini 3 Flash PreviewMistral Medium 3.5
LMArena Text14661421
LMArena Creative Writing14571374
LMArena Multi-Turn14711423
EQ-Bench 4—993

Frequently asked questions

Is Gemini 3 Flash Preview better than Mistral Medium 3.5?

Gemini 3 Flash Preview is the stronger model overall, scoring 52.3 to 40.2 on the Noometry Index.

Which is cheaper, Gemini 3 Flash Preview or Mistral Medium 3.5?

Gemini 3 Flash Preview is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; Mistral Medium 3.5 lists at $1.50 and $7.50.

Is Gemini 3 Flash Preview or Mistral Medium 3.5 better for coding?

Gemini 3 Flash Preview scores higher on coding benchmarks: 50.9 versus 36.0 in the Noometry coding category.

Which has the bigger context window?

Gemini 3 Flash Preview does, with 1.05M tokens against 262K.

How many benchmarks do Gemini 3 Flash Preview and Mistral Medium 3.5 share?

20 benchmarks have published results for both models. Gemini 3 Flash Preview has 59 scored results on Noometry and Mistral Medium 3.5 has 22.

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