o3 Mini vs Mistral Large 2

Compare o3 Mini by OpenAI against Mistral Large 2 by Mistral AI, context windows of 64K vs 128K, tested across 16 shared challenges. Updated March 2026.

Which is better, o3 Mini or Mistral Large 2?

o3 Mini and Mistral Large 2 are both competitive models. o3 Mini costs $1.1/M input tokens vs $8/M for Mistral Large 2. Context windows: 64K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between o3 Mini and Mistral Large 2

o3 Mini is made by openai while Mistral Large 2 is from mistral. o3 Mini has a 64K token context window compared to Mistral Large 2's 128K. On pricing, o3 Mini costs $1.1/M input tokens vs $8/M for Mistral Large 2.

Our Verdict
o3 Mini
o3 Mini
Mistral Large 2
Mistral Large 2

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

o3 Mini is 5.5x cheaper per token — worth considering if cost matters.

Too close to call
FAQ

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