Noometry

Model comparison

Mistral Small 3.1 vs Qwen3 8B

Qwen3 8B is the stronger model overall, scoring 33.7 to 31.7 on the Noometry Index.

Last verified . 4 shared benchmarks.

Mistral Small 3.1 Mistral AI

31.7

Rank #269 Confirmed

Qwen3 8B Alibaba (Qwen)

33.7

Rank #238 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Mistral Small 3.1 scores higher in 3 categories and Qwen3 8B in 2 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3 8B leads 34.9 to 14.7.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 3.9% for Mistral Small 3.1 and 56.1% for Qwen3 8B.
  • Qwen3 8B is cheaper at $0.18 / $0.70 per million input/output tokens, against $0.35 / $0.56 for Mistral Small 3.1.
  • Qwen3 8B accepts more context: 131K tokens versus 128K.

Side by side

Mistral Small 3.1Qwen3 8B
ProviderMistral AIAlibaba (Qwen)
Noometry Index31.733.7
Released2025-03-172025-04
WeightsOpenOpen
Context window128K131K
Max output102K8K
Input $ / M tokens$0.35$0.18
Output $ / M tokens$0.56$0.70
Results tracked2811

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Category by category

Coding Mistral Small 3.1 leads

Mistral Small 3.1: 38.3 (#179), Qwen3 8B: 34.0 (#248)

BenchmarkMistral Small 3.1Qwen3 8B
SciCode—22.6%
LMArena Coding1309—

Agentic & Tool Use Not comparable

Mistral Small 3.1: —, Qwen3 8B: 30.2 (#78)

BenchmarkMistral Small 3.1Qwen3 8B
Berkeley Function Calling Leaderboard—42.6%

Reasoning Mistral Small 3.1 leads

Mistral Small 3.1: 19.7 (#254), Qwen3 8B: 16.6 (#303)

BenchmarkMistral Small 3.1Qwen3 8B
Chess Puzzles1%5%
Epoch Capabilities Index127.48136.17
CritPt—0%
LMArena Hard Prompts1278—
DTBench—59.7%
LMCA—8.8%

Math Qwen3 8B leads

Mistral Small 3.1: 14.7 (#301), Qwen3 8B: 34.9 (#191)

BenchmarkMistral Small 3.1Qwen3 8B
OTIS Mock AIME 2024-20253.9%56.1%
Omni-MATH24.8%—
LMArena Math1262—

Knowledge Qwen3 8B leads

Mistral Small 3.1: 22.6 (#271), Qwen3 8B: 36.1 (#173)

BenchmarkMistral Small 3.1Qwen3 8B
GPQA Diamond41.9%56.8%
MMLU-Pro61%—
Vectara Hallucination Rate—4.8%
GPQA (HELM)39.2%—
LMArena Expert1257—

Multimodal Not comparable

Mistral Small 3.1: 33.2 (#99), Qwen3 8B: —

BenchmarkMistral Small 3.1Qwen3 8B
LMArena Vision1136—

Multilingual Not comparable

Mistral Small 3.1: 41.2 (#209), Qwen3 8B: —

BenchmarkMistral Small 3.1Qwen3 8B
LMArena Non-English1255—
LMArena Chinese1253—
LMArena French1273—
LMArena German1266—
LMArena Japanese1208—
LMArena Korean1206—
LMArena Russian1263—
LMArena Spanish1283—

Instruction Following Not comparable

Mistral Small 3.1: 63.6 (#230), Qwen3 8B: —

BenchmarkMistral Small 3.1Qwen3 8B
IFEval75%—
LMArena Instruction Following1264—

Long Context Mistral Small 3.1 leads

Mistral Small 3.1: 39.5 (#178), Qwen3 8B: 37.9 (#210)

BenchmarkMistral Small 3.1Qwen3 8B
Fiction.LiveBench—62.1%
LMArena Longer Query1299—

Writing & Preference Not comparable

Mistral Small 3.1: 37.0 (#259), Qwen3 8B: —

BenchmarkMistral Small 3.1Qwen3 8B
LMArena Text1277—
LMArena Creative Writing1253—
EQ-Bench Creative Writing761—
WildBench78.8%—
LMArena Multi-Turn1270—

Frequently asked questions

Is Mistral Small 3.1 better than Qwen3 8B?

Qwen3 8B is the stronger model overall, scoring 33.7 to 31.7 on the Noometry Index.

Which is cheaper, Mistral Small 3.1 or Qwen3 8B?

Qwen3 8B is cheaper. It lists at $0.18 per million input tokens and $0.70 per million output tokens; Mistral Small 3.1 lists at $0.35 and $0.56.

Is Mistral Small 3.1 or Qwen3 8B better for coding?

Mistral Small 3.1 scores higher on coding benchmarks: 38.3 versus 34.0 in the Noometry coding category.

Which has the bigger context window?

Qwen3 8B does, with 131K tokens against 128K.

How many benchmarks do Mistral Small 3.1 and Qwen3 8B share?

4 benchmarks have published results for both models. Mistral Small 3.1 has 28 scored results on Noometry and Qwen3 8B has 11.

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