GPT-1 vs GPT-5

Compare GPT-1 and GPT-5, both from OpenAI, in 12 community votes, gpt-5 wins 92% of head-to-head duels, context windows of 1K vs 400K, tested across 7 shared challenges. Updated March 2026.

Which is better, GPT-1 or GPT-5?

GPT-5 is the better choice overall, winning 92% of 12 blind community votes on Rival. Context windows: 1K vs 400K tokens. Compare their real outputs side by side below.

Key Differences Between GPT-1 and GPT-5

GPT-1 is made by openai while GPT-5 is from openai. GPT-1 has a 1K token context window compared to GPT-5's 400K. In community voting, In 12 community votes, GPT-5 wins 92% of head-to-head duels.

In 12 community votes, GPT-5 wins 92% of head-to-head duels. GPT-5 leads in Image Generation, Conversation, Analysis. Based on blind community voting from the Rival open dataset of 12+ human preference judgments for this pair.

Image Generation: GPT-5 wins 100% of votes
Conversation: GPT-5 wins 67% of votes
Analysis: GPT-5 wins 100% of votes
Our Verdict
GPT-5
GPT-5Winner
GPT-1
GPT-1Runner-up

Pick GPT-5. In 12 blind votes, GPT-5 wins 92% of the time. That's not luck.

GPT-5 particularly excels in Image Generation, Analysis, Conversation.

Clear winner
FAQ

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