Model comparison

Devstral Small 2505 vs Gemini 3.7 Flash

Gemini 3.7 Flash is the stronger model overall, scoring 59.8 to 34.3 on the Noometry Index. Devstral Small 2505 costs 10.0× less per token, which makes it the better buy when Gemini 3.7 Flash's lead doesn't matter for your workload.

Last verified . 2 shared benchmarks.

Devstral Small 2505 Mistral AI

34.3

Rank #233 Reported

Gemini 3.7 Flash Google

59.8

Rank #14 Confirmed

Summary

  • They share 2 benchmarks with published results for both. Devstral Small 2505 scores higher in 0 categories and Gemini 3.7 Flash in 2 categories; 2 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3.7 Flash leads 70.0 to 19.7.
  • The biggest single-benchmark swing is SciCode: 28.8% for Devstral Small 2505 and 59.8% for Gemini 3.7 Flash.
  • Devstral Small 2505 is cheaper at $0.10 / $0.30 per million input/output tokens, against $0.75 / $3.75 for Gemini 3.7 Flash.
  • Gemini 3.7 Flash accepts more context: 1.05M tokens versus 128K.
  • Devstral Small 2505 has downloadable open weights; the other is API-only.

Side by side

Devstral Small 2505 and Gemini 3.7 Flash specifications
Devstral Small 2505Gemini 3.7 Flash
ProviderMistral AIGoogle
Noometry Index34.359.8
Released2025-05-072026-08-13
WeightsOpenProprietary
Context window128K1.05M
Max output128K66K
Input $ / M tokens$0.10$0.75
Output $ / M tokens$0.30$3.75
Results tracked444

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Category by category

Coding Gemini 3.7 Flash leads

Devstral Small 2505: 38.9 (#166), Gemini 3.7 Flash: 56.2 (#22)

Coding benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
SciCode28.8%59.8%
DeepSWE—65.5%
FrontierCode—43.6%
SWE-bench Verified (bash only)56.4%—
LMArena WebDev—1592
FrontierSWE—20.3%
LMArena Coding—1497
ALE-Bench—904.3

Agentic & Tool Use Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 42.1 (#19)

Agentic & Tool Use benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
APEX-Agents—67.8%
Remote Labor Index—5%
GDP.pdf—23.8%

Reasoning Gemini 3.7 Flash leads

Devstral Small 2505: 19.7 (#252), Gemini 3.7 Flash: 70.0 (#15)

Reasoning benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
CritPt0%14.3%
ARC-AGI-2—84.6%
Kagi LLM Benchmark37.7%—
NYT Connections (extended)—94%
ARC-AGI-1—95.5%
Chess Puzzles—47%
LMArena Hard Prompts—1494
Mystery Game Puzzles—37%
DTBench—96.8%
LMCA—50.4%
Epoch Capabilities Index—157.27

Math Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 69.6 (#23)

Math benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
FrontierMath (Tiers 1-3)—71.6%
FrontierMath Tier 4—36.6%
OTIS Mock AIME 2024-2025—97.2%
ProofBench—58%
LMArena Math—1507

Knowledge Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 69.7 (#5)

Knowledge benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
GPQA Diamond—94.8%
SimpleQA Verified—69.2%
LMArena Expert—1508

Multimodal Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 37.3 (#73)

Multimodal benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
LMArena Vision—1316
Furniture Assembly—26.7%

Multilingual Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 57.6 (#7)

Multilingual benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
LMArena Non-English—1484
LMArena Chinese—1548
LMArena French—1505
LMArena German—1498
LMArena Japanese—1512
LMArena Korean—1483
LMArena Russian—1516
LMArena Spanish—1503

Instruction Following Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 77.7 (#15)

Instruction Following benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
LMArena Instruction Following—1483

Long Context Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 45.7 (#30)

Long Context benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
LMArena Longer Query—1492

Writing & Preference Not comparable

Devstral Small 2505: —, Gemini 3.7 Flash: 71.2 (#20)

Writing & Preference benchmarks
BenchmarkDevstral Small 2505Gemini 3.7 Flash
LMArena Text—1486
LMArena Creative Writing—1490
EQ-Bench Creative Writing—1723
LMArena Multi-Turn—1489

Frequently asked questions

Is Devstral Small 2505 better than Gemini 3.7 Flash?

Gemini 3.7 Flash is the stronger model overall, scoring 59.8 to 34.3 on the Noometry Index. Devstral Small 2505 costs 10.0× less per token, which makes it the better buy when Gemini 3.7 Flash's lead doesn't matter for your workload.

Which is cheaper, Devstral Small 2505 or Gemini 3.7 Flash?

Devstral Small 2505 is cheaper. It lists at $0.10 per million input tokens and $0.30 per million output tokens; Gemini 3.7 Flash lists at $0.75 and $3.75.

Is Devstral Small 2505 or Gemini 3.7 Flash better for coding?

Gemini 3.7 Flash scores higher on coding benchmarks: 56.2 versus 38.9 in the Noometry coding category.

Which has the bigger context window?

Gemini 3.7 Flash does, with 1.05M tokens against 128K.

How many benchmarks do Devstral Small 2505 and Gemini 3.7 Flash share?

2 benchmarks have published results for both models. Devstral Small 2505 has 4 scored results on Noometry and Gemini 3.7 Flash has 44.

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