Compare GPT-5 and GPT-1, both from OpenAI, in 12 community votes, gpt-5 wins 92% of head-to-head duels, context windows of 400K vs 1K, tested across 7 shared challenges. Updated April 2026.
GPT-5 is the better choice overall, winning 92% of 12 blind community votes on Rival. Context windows: 400K vs 1K tokens. Compare their real outputs side by side below.
GPT-5 is made by openai while GPT-1 is from openai. GPT-5 has a 400K token context window compared to GPT-1's 1K. 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.
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.
GPT-5 uses 18.9x more bold
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare GPT-5 and GPT-1, both from OpenAI, in 12 community votes, gpt-5 wins 92% of head-to-head duels, context windows of 400K vs 1K, tested across 7 shared challenges. Updated April 2026.
GPT-5 is the better choice overall, winning 92% of 12 blind community votes on Rival. Context windows: 400K vs 1K tokens. Compare their real outputs side by side below.
GPT-5 is made by openai while GPT-1 is from openai. GPT-5 has a 400K token context window compared to GPT-1's 1K. 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.
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.
GPT-5 uses 18.9x more bold
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

7 fights queued
7 fights queued