Noometry

Model comparison

Gemini 3.5 Flash vs Mistral Small 3.2

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 25× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.

Last verified . 4 shared benchmarks.

Gemini 3.5 Flash Google

54.2

Rank #32 Confirmed

Mistral Small 3.2 Mistral AI

31.2

Rank #280 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Gemini 3.5 Flash scores higher in 4 categories and Mistral Small 3.2 in 0 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.5 Flash leads 62.8 to 18.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 95.6% for Gemini 3.5 Flash and 30.3% for Mistral Small 3.2.
  • Mistral Small 3.2 is cheaper at $0.0938 / $0.25 per million input/output tokens, against $1.50 / $9 for Gemini 3.5 Flash.
  • Gemini 3.5 Flash accepts more context: 1.05M tokens versus 256K.
  • Mistral Small 3.2 has downloadable open weights; the other is API-only.

Side by side

Gemini 3.5 FlashMistral Small 3.2
ProviderGoogleMistral AI
Noometry Index54.231.2
Released2026-05-192025-06-20
WeightsProprietaryOpen
Context window1.05M256K
Max output66K16K
Input $ / M tokens$1.50$0.0938
Output $ / M tokens$9$0.25
Results tracked546

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Category by category

Coding Not comparable

Gemini 3.5 Flash: 49.4 (#49), Mistral Small 3.2: —

BenchmarkGemini 3.5 FlashMistral Small 3.2
SWE-bench Verified79.3%—
DeepSWE37.4%—
LMArena WebDev1499—
SciCode53.1%—
WeirdML62.6%—
LMArena Coding1492—
ALE-Bench911.02—

Agentic & Tool Use Not comparable

Gemini 3.5 Flash: 24.7 (#114), Mistral Small 3.2: —

BenchmarkGemini 3.5 FlashMistral Small 3.2
APEX-Agents27.5%—
GBAEval6.7%—
GDP.pdf14%—
Vending-Bench 25,396—

Reasoning Gemini 3.5 Flash leads

Gemini 3.5 Flash: 62.8 (#18), Mistral Small 3.2: 18.1 (#287)

BenchmarkGemini 3.5 FlashMistral Small 3.2
Chess Puzzles50%1%
Epoch Capabilities Index154.46131.74
ARC-AGI-272.1%—
SimpleBench76.7%—
Kagi LLM Benchmark—40.4%
NYT Connections (extended)92.6%—
ARC-AGI-192.5%—
CritPt13.1%—
EnigmaEval25.4%—
EBR-Bench4.8%—
LMArena Hard Prompts1488—
Mystery Game Puzzles32%—
DTBench94.7%—
LMCA47.1%—
Surface Evolver Bench58.1%—
ForecastBench59—

Math Gemini 3.5 Flash leads

Gemini 3.5 Flash: 60.7 (#36), Mistral Small 3.2: 26.3 (#260)

BenchmarkGemini 3.5 FlashMistral Small 3.2
OTIS Mock AIME 2024-202595.6%30.3%
FrontierMath (Tiers 1-3)62.8%—
FrontierMath Tier 426.8%—
MathArena Final-Answer Competitions76.3%—
ProofBench31%—
LMArena Math1504—
FrontierMath (Feb 2025 set)39%—
FrontierMath Tier 4 (v1)14.6%—

Knowledge Gemini 3.5 Flash leads

Gemini 3.5 Flash: 66.3 (#11), Mistral Small 3.2: 26.7 (#256)

BenchmarkGemini 3.5 FlashMistral Small 3.2
GPQA Diamond92.8%49.1%
SimpleQA Verified66.2%—
LMArena Expert1495—

Multimodal Not comparable

Gemini 3.5 Flash: 45.7 (#15), Mistral Small 3.2: —

BenchmarkGemini 3.5 FlashMistral Small 3.2
LMArena Vision1310—
Blueprint-Bench 233.6%—
LMArena Document1463—

Multilingual Not comparable

Gemini 3.5 Flash: 57.0 (#13), Mistral Small 3.2: —

BenchmarkGemini 3.5 FlashMistral Small 3.2
LMArena Non-English1476—
LMArena Chinese1526—
LMArena French1490—
LMArena German1492—
LMArena Japanese1486—
LMArena Korean1451—
LMArena Russian1493—
LMArena Spanish1480—

Instruction Following Not comparable

Gemini 3.5 Flash: 77.0 (#30), Mistral Small 3.2: —

BenchmarkGemini 3.5 FlashMistral Small 3.2
LMArena Instruction Following1467—

Long Context Not comparable

Gemini 3.5 Flash: 45.4 (#38), Mistral Small 3.2: —

BenchmarkGemini 3.5 FlashMistral Small 3.2
LMArena Longer Query1482—

Writing & Preference Gemini 3.5 Flash leads

Gemini 3.5 Flash: 65.5 (#47), Mistral Small 3.2: 45.0 (#224)

BenchmarkGemini 3.5 FlashMistral Small 3.2
LMArena Text1482—
LMArena Creative Writing1470—
EQ-Bench Creative Writing—1255
EQ-Bench 41087—
LMArena Multi-Turn1481—

Frequently asked questions

Is Gemini 3.5 Flash better than Mistral Small 3.2?

Gemini 3.5 Flash is the stronger model overall, scoring 54.2 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 25× less per token, which makes it the better buy when Gemini 3.5 Flash's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.5 Flash or Mistral Small 3.2?

Mistral Small 3.2 is cheaper. It lists at $0.0938 per million input tokens and $0.25 per million output tokens; Gemini 3.5 Flash lists at $1.50 and $9.

Which has the bigger context window?

Gemini 3.5 Flash does, with 1.05M tokens against 256K.

How many benchmarks do Gemini 3.5 Flash and Mistral Small 3.2 share?

4 benchmarks have published results for both models. Gemini 3.5 Flash has 54 scored results on Noometry and Mistral Small 3.2 has 6.

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