Compare Claude Sonnet 4 by Anthropic against Mistral Devstral Small 1.1 by Mistral AI, in 6 community votes, claude sonnet 4 wins 60% of head-to-head duels, tested across 54 shared challenges. Updated April 2026.
Claude Sonnet 4 is the better choice overall, winning 60% of 6 blind community votes on Rival. Claude Sonnet 4 costs $3/M input tokens vs $0.1/M for Mistral Devstral Small 1.1. Compare their real outputs side by side below.
Claude Sonnet 4 is made by anthropic while Mistral Devstral Small 1.1 is from mistral. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $0.1/M for Mistral Devstral Small 1.1. In community voting, In 6 community votes, Claude Sonnet 4 wins 60% of head-to-head duels.
In 6 community votes, Claude Sonnet 4 wins 60% of head-to-head duels. Claude Sonnet 4 leads in Web Design. Based on blind community voting from the Rival open dataset of 6+ human preference judgments for this pair.
Pick Claude Sonnet 4. In 6 blind votes, Claude Sonnet 4 wins 60% of the time. That's not luck.
Claude Sonnet 4 particularly excels in Web Design. Mistral Devstral Small 1.1 is 50x cheaper per token — worth considering if cost matters.
Claude Sonnet 4 uses 87.9x more emoji
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare Claude Sonnet 4 by Anthropic against Mistral Devstral Small 1.1 by Mistral AI, in 6 community votes, claude sonnet 4 wins 60% of head-to-head duels, tested across 54 shared challenges. Updated April 2026.
Claude Sonnet 4 is the better choice overall, winning 60% of 6 blind community votes on Rival. Claude Sonnet 4 costs $3/M input tokens vs $0.1/M for Mistral Devstral Small 1.1. Compare their real outputs side by side below.
Claude Sonnet 4 is made by anthropic while Mistral Devstral Small 1.1 is from mistral. On pricing, Claude Sonnet 4 costs $3/M input tokens vs $0.1/M for Mistral Devstral Small 1.1. In community voting, In 6 community votes, Claude Sonnet 4 wins 60% of head-to-head duels.
In 6 community votes, Claude Sonnet 4 wins 60% of head-to-head duels. Claude Sonnet 4 leads in Web Design. Based on blind community voting from the Rival open dataset of 6+ human preference judgments for this pair.
Pick Claude Sonnet 4. In 6 blind votes, Claude Sonnet 4 wins 60% of the time. That's not luck.
Claude Sonnet 4 particularly excels in Web Design. Mistral Devstral Small 1.1 is 50x cheaper per token — worth considering if cost matters.
Claude Sonnet 4 uses 87.9x more emoji
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

49 fights queued
37+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy
49 fights queued
37+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy