GPT-4o (Omni) vs GPT-5

Compare GPT-4o (Omni) and GPT-5, both from OpenAI, in 19 community votes, gpt-5 wins 78% of head-to-head duels, context windows of 128K vs 400K, tested across 46 shared challenges. Updated February 2026.

In 19 community votes, GPT-5 wins 78% of head-to-head duels. GPT-4o (Omni) leads in Conversation, while GPT-5 leads in Reasoning, Image Generation, Web Design. Based on blind community voting from the RIVAL open dataset of 19+ human preference judgments for this pair.

Reasoning: GPT-5 wins 71% of votes
Image Generation: GPT-5 wins 100% of votes
Conversation: GPT-4o (Omni) wins 67% of votes
Web Design: GPT-5 wins 100% of votes
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