GPT-4o (Omni) vs Gemini 2.5 Pro Experimental
Compare GPT-4o (Omni) by OpenAI against Gemini 2.5 Pro Experimental by Google AI, in 7 community votes, gemini 2.5 pro experimental wins 86% of head-to-head duels, context windows of 128K vs 1.0M, tested across 43 shared challenges. Updated March 2026.
Which is better, GPT-4o (Omni) or Gemini 2.5 Pro Experimental?
Gemini 2.5 Pro Experimental is the better choice overall, winning 86% of 7 blind community votes on Rival. GPT-4o (Omni) costs $2.5/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. Context windows: 128K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o (Omni) and Gemini 2.5 Pro Experimental
GPT-4o (Omni) is made by openai while Gemini 2.5 Pro Experimental is from google. GPT-4o (Omni) has a 128K token context window compared to Gemini 2.5 Pro Experimental's 1000K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $1/M for Gemini 2.5 Pro Experimental. In community voting, In 7 community votes, Gemini 2.5 Pro Experimental wins 86% of head-to-head duels.
In 7 community votes, Gemini 2.5 Pro Experimental wins 86% of head-to-head duels. Gemini 2.5 Pro Experimental leads in Web Design, Reasoning. Based on blind community voting from the Rival open dataset of 7+ human preference judgments for this pair.
Web Design: Gemini 2.5 Pro Experimental wins 100% of votes
Reasoning: Gemini 2.5 Pro Experimental wins 100% of votes
Our Verdict
Gemini 2.5 Pro ExperimentalWinner
GPT-4o (Omni)Runner-up
Pick Gemini 2.5 Pro Experimental. In 7 blind votes, Gemini 2.5 Pro Experimental wins 86% of the time. That's not luck.
Gemini 2.5 Pro Experimental particularly excels in Web Design, Reasoning. Gemini 2.5 Pro Experimental is 5.0x cheaper per token — worth considering if cost matters.
Clear winner
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