OpenAI are testing a new model on the Web Dev Arena @lmarena_ai under the name 'Anonymous Chatbot 0717'. I can't believe I'm gonna say this, but it is genuinely at a completely different level of front end coding – far better than Sonnet, o3, Gemini 2.5 Pro, or Grok 4.

To test… pic.twitter.com/wQKMgPRFGF

— Peter Gostev (@petergostev) 18 juillet 2025

OpenAI are testing a new model on the Web Dev Arena @lmarena_ai under the name 'Anonymous Chatbot 0717'. I can't believe I'm gonna say this, but it is genuinely at a completely different level of front end coding – far better than Sonnet, o3, Gemini 2.5 Pro, or Grok 4. To test

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