o1 vs Mistral Nemo

Compare o1 by OpenAI against Mistral Nemo by Mistral AI, context windows of 128K vs 128K, tested across 16 shared challenges. Updated March 2026.

Which is better, o1 or Mistral Nemo?

o1 and Mistral Nemo are both competitive models. o1 costs $15/M input tokens vs $0.03/M for Mistral Nemo. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.

Key Differences Between o1 and Mistral Nemo

o1 is made by openai while Mistral Nemo is from mistral. o1 has a 128K token context window compared to Mistral Nemo's 128K. On pricing, o1 costs $15/M input tokens vs $0.03/M for Mistral Nemo.

Our Verdict
o1
o1
Mistral Nemo
Mistral Nemo

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

Mistral Nemo is 857x cheaper per token — worth considering if cost matters.

Too close to call
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o1Mistral Nemo
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