Noometry

Model comparison

Gemini 3.8 Flash vs Mistral Small 3.2

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 11× less per token, which makes it the better buy when Gemini 3.8 Flash's lead doesn't matter for your workload.

Last verified . 5 shared benchmarks.

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

Mistral Small 3.2 Mistral AI

31.2

Rank #280 Confirmed

Summary

  • They share 5 benchmarks with published results for both. Gemini 3.8 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 3.8 Flash leads 76.9 to 18.1.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 98.9% for Gemini 3.8 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 $0.75 / $3.75 for Gemini 3.8 Flash.
  • Gemini 3.8 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 3.8 FlashMistral Small 3.2
ProviderGoogleMistral AI
Noometry Index61.831.2
Released2026-09-022025-06-20
WeightsProprietaryOpen
Context window1.05M256K
Max output66K16K
Input $ / M tokens$0.75$0.0938
Output $ / M tokens$3.75$0.25
Results tracked506

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Category by category

Coding Not comparable

Gemini 3.8 Flash: 59.2 (#15), Mistral Small 3.2: —

BenchmarkGemini 3.8 FlashMistral Small 3.2
DeepSWE73.8%—
FrontierCode41.2%—
CursorBench39.6%—
LMArena WebDev1584—
FrontierSWE19.6%—
SciCode56.6%—
WeirdML84.8%—
LMArena Coding1510—
ALE-Bench1,270—

Agentic & Tool Use Not comparable

Gemini 3.8 Flash: 41.8 (#21), Mistral Small 3.2: —

BenchmarkGemini 3.8 FlashMistral Small 3.2
APEX-Agents64.3%—
Remote Labor Index5.8%—
GDP.pdf23.4%—
Vending-Bench 25,094—

Reasoning Gemini 3.8 Flash leads

Gemini 3.8 Flash: 76.9 (#5), Mistral Small 3.2: 18.1 (#287)

BenchmarkGemini 3.8 FlashMistral Small 3.2
Chess Puzzles61%1%
Epoch Capabilities Index156.71131.74
ARC-AGI-289.2%—
Kagi LLM Benchmark—40.4%
NYT Connections (extended)97.4%—
ARC-AGI-198.5%—
CritPt18.3%—
LMArena Hard Prompts1508—
Mystery Game Puzzles47%—
DTBench95.7%—
LMCA52.9%—
Surface Evolver Bench76.9%—

Math Gemini 3.8 Flash leads

Gemini 3.8 Flash: 65.3 (#28), Mistral Small 3.2: 26.3 (#260)

BenchmarkGemini 3.8 FlashMistral Small 3.2
OTIS Mock AIME 2024-202598.9%30.3%
FrontierMath (Tiers 1-3)68.4%—
FrontierMath Tier 422%—
ProofBench48%—
LMArena Math1528—

Knowledge Gemini 3.8 Flash leads

Gemini 3.8 Flash: 74.8 (#2), Mistral Small 3.2: 26.7 (#256)

BenchmarkGemini 3.8 FlashMistral Small 3.2
GPQA Diamond95.4%49.1%
Humanity's Last Exam44.5%—
SimpleQA Verified69.7%—
LMArena Expert1524—

Multimodal Not comparable

Gemini 3.8 Flash: 40.7 (#45), Mistral Small 3.2: —

BenchmarkGemini 3.8 FlashMistral Small 3.2
LMArena Vision1314—
Blueprint-Bench 238.6%—
Furniture Assembly31.7%—

Multilingual Not comparable

Gemini 3.8 Flash: 58.0 (#5), Mistral Small 3.2: —

BenchmarkGemini 3.8 FlashMistral Small 3.2
LMArena Non-English1491—
LMArena Chinese1554—
LMArena French1498—
LMArena German1493—
LMArena Japanese1502—
LMArena Korean1459—
LMArena Russian1515—
LMArena Spanish1485—

Instruction Following Not comparable

Gemini 3.8 Flash: 78.0 (#13), Mistral Small 3.2: —

BenchmarkGemini 3.8 FlashMistral Small 3.2
LMArena Instruction Following1490—

Long Context Not comparable

Gemini 3.8 Flash: 46.3 (#24), Mistral Small 3.2: —

BenchmarkGemini 3.8 FlashMistral Small 3.2
LMArena Longer Query1508—

Writing & Preference Gemini 3.8 Flash leads

Gemini 3.8 Flash: 72.2 (#15), Mistral Small 3.2: 45.0 (#224)

BenchmarkGemini 3.8 FlashMistral Small 3.2
EQ-Bench Creative Writing17481255
LMArena Text1499—
LMArena Creative Writing1492—
LMArena Multi-Turn1501—

Frequently asked questions

Is Gemini 3.8 Flash better than Mistral Small 3.2?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 11× less per token, which makes it the better buy when Gemini 3.8 Flash's lead doesn't matter for your workload.

Which is cheaper, Gemini 3.8 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 3.8 Flash lists at $0.75 and $3.75.

Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 256K.

How many benchmarks do Gemini 3.8 Flash and Mistral Small 3.2 share?

5 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Mistral Small 3.2 has 6.

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