Noometry

Model comparison

Gemini 3.8 Flash vs Mistral Medium 3.5

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 40.2 on the Noometry Index.

Last verified . 20 shared benchmarks.

Gemini 3.8 Flash Google

61.8

Rank #11 Confirmed

Mistral Medium 3.5 Mistral AI

40.2

Rank #152 Confirmed

Summary

  • They share 20 benchmarks with published results for both. Gemini 3.8 Flash 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 3.8 Flash leads 76.9 to 17.3.
  • The biggest single-benchmark swing is NYT Connections (extended): 97.4% for Gemini 3.8 Flash and 12.9% for Mistral Medium 3.5.
  • Gemini 3.8 Flash is cheaper at $0.75 / $3.75 per million input/output tokens, against $1.50 / $7.50 for Mistral Medium 3.5.
  • Gemini 3.8 Flash 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 3.8 FlashMistral Medium 3.5
ProviderGoogleMistral AI
Noometry Index61.840.2
Released2026-09-02—
WeightsProprietaryOpen
Context window1.05M262K
Max output66K210K
Input $ / M tokens$0.75$1.50
Output $ / M tokens$3.75$7.50
Results tracked5022

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Category by category

Coding Gemini 3.8 Flash leads

Gemini 3.8 Flash: 59.2 (#15), Mistral Medium 3.5: 36.0 (#213)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena WebDev15841264
LMArena Coding15101461
DeepSWE73.8%—
FrontierCode41.2%—
CursorBench39.6%—
FrontierSWE19.6%—
SciCode56.6%—
WeirdML84.8%—
ALE-Bench1,270—

Agentic & Tool Use Not comparable

Gemini 3.8 Flash: 41.8 (#21), Mistral Medium 3.5: —

BenchmarkGemini 3.8 FlashMistral Medium 3.5
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 Medium 3.5: 17.3 (#295)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
NYT Connections (extended)97.4%12.9%
LMArena Hard Prompts15081436
Epoch Capabilities Index156.71141.35
ARC-AGI-289.2%—
Kagi LLM Benchmark—41.4%
ARC-AGI-198.5%—
CritPt18.3%—
Chess Puzzles61%—
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 Medium 3.5: 39.1 (#113)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Math15281431
FrontierMath (Tiers 1-3)68.4%—
FrontierMath Tier 422%—
OTIS Mock AIME 2024-202598.9%—
ProofBench48%—

Knowledge Gemini 3.8 Flash leads

Gemini 3.8 Flash: 74.8 (#2), Mistral Medium 3.5: 40.0 (#126)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Expert15241432
GPQA Diamond95.4%—
Humanity's Last Exam44.5%—
SimpleQA Verified69.7%—

Multimodal Gemini 3.8 Flash leads

Gemini 3.8 Flash: 40.7 (#45), Mistral Medium 3.5: 38.3 (#65)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Vision13141223
Blueprint-Bench 238.6%—
Furniture Assembly31.7%—

Multilingual Gemini 3.8 Flash leads

Gemini 3.8 Flash: 58.0 (#5), Mistral Medium 3.5: 51.9 (#100)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Non-English14911404
LMArena Chinese15541442
LMArena French14981448
LMArena German14931451
LMArena Korean14591385
LMArena Russian15151395
LMArena Spanish14851409
LMArena Japanese1502—

Instruction Following Gemini 3.8 Flash leads

Gemini 3.8 Flash: 78.0 (#13), Mistral Medium 3.5: 74.6 (#90)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Instruction Following14901415

Long Context Gemini 3.8 Flash leads

Gemini 3.8 Flash: 46.3 (#24), Mistral Medium 3.5: 43.2 (#103)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Longer Query15081415

Writing & Preference Gemini 3.8 Flash leads

Gemini 3.8 Flash: 72.2 (#15), Mistral Medium 3.5: 58.5 (#117)

BenchmarkGemini 3.8 FlashMistral Medium 3.5
LMArena Text14991421
LMArena Creative Writing14921374
LMArena Multi-Turn15011423
EQ-Bench Creative Writing1748—
EQ-Bench 4—993

Frequently asked questions

Is Gemini 3.8 Flash better than Mistral Medium 3.5?

Gemini 3.8 Flash is the stronger model overall, scoring 61.8 to 40.2 on the Noometry Index.

Which is cheaper, Gemini 3.8 Flash or Mistral Medium 3.5?

Gemini 3.8 Flash is cheaper. It lists at $0.75 per million input tokens and $3.75 per million output tokens; Mistral Medium 3.5 lists at $1.50 and $7.50.

Is Gemini 3.8 Flash or Mistral Medium 3.5 better for coding?

Gemini 3.8 Flash scores higher on coding benchmarks: 59.2 versus 36.0 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.8 Flash does, with 1.05M tokens against 262K.

How many benchmarks do Gemini 3.8 Flash and Mistral Medium 3.5 share?

20 benchmarks have published results for both models. Gemini 3.8 Flash has 50 scored results on Noometry and Mistral Medium 3.5 has 22.

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