Mistral Devstral Small 1.1 vs OpenAI o3
Compare Mistral Devstral Small 1.1 by Mistral AI against OpenAI o3 by OpenAI, tested across 54 shared challenges. Updated May 2026.
Which is better, Mistral Devstral Small 1.1 or OpenAI o3?
Mistral Devstral Small 1.1 and OpenAI o3 are both competitive models. Mistral Devstral Small 1.1 costs $0.1/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Mistral Devstral Small 1.1 and OpenAI o3
Mistral Devstral Small 1.1 is made by mistral while OpenAI o3 is from openai. On pricing, Mistral Devstral Small 1.1 costs $0.1/M input tokens vs $10/M for OpenAI o3.
Per 1M tokens
Mistral Devstral Small 1.1 is cheaper on both — 100× input, 133× output
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, major provider backing.
Mistral Devstral Small 1.1 is 133x cheaper per token — worth considering if cost matters.
Style Comparison
OpenAI o3 uses 7.8x more headings
