Users Speculate OpenAI Is Quietly Testing GPT-5.6 in ChatGPT Amid Performance Improvements
By
Jose Antonio Lanz
Summary
Users across social media are reporting that ChatGPT appears to be performing significantly better, leading to widespread speculation that OpenAI is quietly A/B testing an unreleased GPT-5.6 model inside ChatGPT. Developer Anshu Chimala posted evidence suggesting early access to GPT-5.6 Pro, while others report improved performance in OpenAI's coding agent Codex. OpenAI has not confirmed or denied these claims.
Source
bskyUsers Speculate OpenAI Is Quietly Testing GPT-5.6 in ChatGPT Amid Performance Improvementsdecrypt.coKey quotes
· 3 pulledWell well well, I'm one of the lucky ones with early GPT-5.6 Pro access.
Whatever he's running inside Codex, OpenAI's coding agent, 'feels'
Something felt different in ChatGPT this week—and a lot of people noticed at once.
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