GPT-4o (Omni) vs Mistral Nemo

Compare GPT-4o (Omni) by OpenAI against Mistral Nemo by Mistral AI, in 5 community votes, gpt-4o (omni) wins 60% of head-to-head duels, context windows of 128K vs 128K, tested across 18 shared challenges. Updated March 2026.

Which is better, GPT-4o (Omni) or Mistral Nemo?

GPT-4o (Omni) is the better choice overall, winning 60% of 5 blind community votes on Rival. GPT-4o (Omni) costs $2.5/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 GPT-4o (Omni) and Mistral Nemo

GPT-4o (Omni) is made by openai while Mistral Nemo is from mistral. GPT-4o (Omni) has a 128K token context window compared to Mistral Nemo's 128K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $0.03/M for Mistral Nemo. In community voting, In 5 community votes, GPT-4o (Omni) wins 60% of head-to-head duels.

In 5 community votes, GPT-4o (Omni) wins 60% of head-to-head duels. GPT-4o (Omni) leads in Image Generation, while Mistral Nemo leads in Web Design. Based on blind community voting from the Rival open dataset of 5+ human preference judgments for this pair.

Web Design: Mistral Nemo wins 67% of votes
Image Generation: GPT-4o (Omni) wins 100% of votes
Our Verdict
GPT-4o (Omni)
GPT-4o (Omni)Winner
Mistral Nemo
Mistral NemoRunner-up

Pick GPT-4o (Omni). In 5 blind votes, GPT-4o (Omni) wins 60% of the time. That's not luck.

Pick GPT-4o (Omni) for Image Generation. Pick Mistral Nemo for Web Design. Mistral Nemo is 143x cheaper per token — worth considering if cost matters.

Clear winner
FAQ

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