token.app › Compare › Mistral Small 3.1 24B vs Claude Opus 5

Mistral Small 3.1 24B vs Claude Opus 5

Claude Opus 5 leads on 2 of 2 shared benchmarks. Mistral Small 3.1 24B is 25× cheaper per token on a blended 3:1 basis. Claude Opus 5 accepts the larger context window (1M).

Head to head
Blended price uses a 3:1 input:output mix
Mistral Small 3.1 24BClaude Opus 5
ProviderMistral AIAnthropic
Input $/1M$0.351$5.00
Output $/1M$0.555$25.00
Blended $/1M$0.402$10.00
Context window128K1M
Max output128K128K
ReleasedMar 2025Jul 2026
LicenceOpen weightsProprietary
GPQA Diamond 47.5% 93.9%
OTIS Mock AIME 5.8% 98.9%
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Mistral Small 3.1 24B if…
  • Costs less per token — $0.402 vs $10.00 blended
  • Open weights — self-hostable
Choose Claude Opus 5 if…
  • Higher GPQA Diamond (93.9% vs 47.5%)
  • Higher OTIS Mock AIME (98.9% vs 5.8%)
  • Larger context window (1M)
  • Newer model (released Jul 2026)
FAQ
Which is better, Mistral Small 3.1 24B or Claude Opus 5?
Across the 2 benchmarks both models have independently-run scores for, Mistral Small 3.1 24B leads on 0 and Claude Opus 5 leads on 2. Benchmarks are one input — price and context window are on this page too.
Is Mistral Small 3.1 24B cheaper than Claude Opus 5?
Mistral Small 3.1 24B is cheaper: $0.402 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $0.351 vs $5.00. Output alone: $0.555 vs $25.00.
What context windows do Mistral Small 3.1 24B and Claude Opus 5 have?
Mistral Small 3.1 24B: 128,000 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes Mistral Small 3.1 24B and Claude Opus 5?
Mistral Small 3.1 24B is made by Mistral AI. Claude Opus 5 is made by Anthropic.
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