Model comparison

GPT-6 Sol vs Mistral Small 4

GPT-6 Sol has enough public results to be ranked (#46); Mistral Small 4 does not yet, so treat this comparison as directional.

Last verified . 0 shared benchmarks.

GPT-6 Sol OpenAI

49.2

Rank #46 Confirmed

Mistral Small 4 Mistral AI

30.2

Unranked Sparse

Summary

  • The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 21.2.
  • Mistral Small 4 is cheaper at $0.075 / $0.30 per million input/output tokens, against $2 / $10 for GPT-6 Sol.
  • GPT-6 Sol accepts more context: 1.05M tokens versus 262K.
  • Mistral Small 4 has downloadable open weights; the other is API-only.

Side by side

GPT-6 Sol and Mistral Small 4 specifications
GPT-6 SolMistral Small 4
ProviderOpenAIMistral AI
Noometry Index49.230.2
Released2026-09-22—
WeightsProprietaryOpen
Context window1.05M262K
Max output128K210K
Input $ / M tokens$2$0.075
Output $ / M tokens$10$0.30
Results tracked221

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Category by category

Coding Not comparable

GPT-6 Sol: 59.6 (#11), Mistral Small 4: —

Coding benchmarks
BenchmarkGPT-6 SolMistral Small 4
DeepSWE68.8%—
FrontierCode49.3%—
LMArena WebDev1692—
LMArena Coding1453—

Agentic & Tool Use Not comparable

GPT-6 Sol: 33.5 (#49), Mistral Small 4: —

Agentic & Tool Use benchmarks
BenchmarkGPT-6 SolMistral Small 4
GDP.pdf28%—

Reasoning GPT-6 Sol leads

GPT-6 Sol: 49.3 (#34), Mistral Small 4: 21.2

Reasoning benchmarks
BenchmarkGPT-6 SolMistral Small 4
Kagi LLM Benchmark—40.5%
NYT Connections (extended)90.1%—
EBR-Bench53.3%—
LMArena Hard Prompts1420—

Math Not comparable

GPT-6 Sol: 35.8 (#135), Mistral Small 4: —

Math benchmarks
BenchmarkGPT-6 SolMistral Small 4
LMArena Math1404—

Knowledge Not comparable

GPT-6 Sol: 43.0 (#87), Mistral Small 4: —

Knowledge benchmarks
BenchmarkGPT-6 SolMistral Small 4
Vectara Hallucination Rate6.5%—
LMArena Expert1449—

Multimodal Not comparable

GPT-6 Sol: 47.6 (#9), Mistral Small 4: —

Multimodal benchmarks
BenchmarkGPT-6 SolMistral Small 4
Furniture Assembly58.3%—

Multilingual Not comparable

GPT-6 Sol: 51.0 (#113), Mistral Small 4: —

Multilingual benchmarks
BenchmarkGPT-6 SolMistral Small 4
LMArena Non-English1389—
LMArena Chinese1416—
LMArena Russian1407—
LMArena Spanish1377—

Instruction Following Not comparable

GPT-6 Sol: 74.4 (#97), Mistral Small 4: —

Instruction Following benchmarks
BenchmarkGPT-6 SolMistral Small 4
LMArena Instruction Following1406—

Long Context Not comparable

GPT-6 Sol: 43.2 (#100), Mistral Small 4: —

Long Context benchmarks
BenchmarkGPT-6 SolMistral Small 4
LMArena Longer Query1415—

Writing & Preference Not comparable

GPT-6 Sol: 72.3 (#15), Mistral Small 4: —

Writing & Preference benchmarks
BenchmarkGPT-6 SolMistral Small 4
LMArena Text1396—
LMArena Creative Writing1392—
EQ-Bench Creative Writing2125—
LMArena Multi-Turn1405—

Frequently asked questions

Is GPT-6 Sol better than Mistral Small 4?

GPT-6 Sol has enough public results to be ranked (#46); Mistral Small 4 does not yet, so treat this comparison as directional.

Which is cheaper, GPT-6 Sol or Mistral Small 4?

Mistral Small 4 is cheaper. It lists at $0.075 per million input tokens and $0.30 per million output tokens; GPT-6 Sol lists at $2 and $10.

Which has the bigger context window?

GPT-6 Sol does, with 1.05M tokens against 262K.

How many benchmarks do GPT-6 Sol and Mistral Small 4 share?

0 benchmarks have published results for both models. GPT-6 Sol has 22 scored results on Noometry and Mistral Small 4 has 1.

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