Claude Opus 4.1 vs Mistral Small 4
Compare Claude Opus 4.1 by Anthropic against Mistral Small 4 by Mistral AI, context windows of 200K vs 262K, tested across 53 shared challenges. Updated May 2026.
Which is better, Claude Opus 4.1 or Mistral Small 4?
Claude Opus 4.1 and Mistral Small 4 are both competitive models. Claude Opus 4.1 costs $15/M input tokens vs $0.15/M for Mistral Small 4. Context windows: 200K vs 262K tokens. Compare their real outputs side by side below.
Key Differences Between Claude Opus 4.1 and Mistral Small 4
Claude Opus 4.1 is made by anthropic while Mistral Small 4 is from mistral. Claude Opus 4.1 has a 200K token context window compared to Mistral Small 4's 262K. On pricing, Claude Opus 4.1 costs $15/M input tokens vs $0.15/M for Mistral Small 4.
Per 1M tokens
Mistral Small 4 is cheaper on both — 100× input, 125× output
No community votes yet. On paper, Claude Opus 4.1 has the edge — bigger model tier, major provider backing.
Mistral Small 4 is 125x cheaper per token — worth considering if cost matters.
Style Comparison
Claude Opus 4.1 uses 4.9x more sentence length
