Rumor has it OpenAI will release GPT-5.1 this month. Expect fewer hallucinations, better, more creative writing, and more naughty bits

OpenAI watchers have spotted something curious over the last week.

References to GPT-5.1 keep showing up in OpenAI’s codebase, and a “cloaked” model codenamed Polaris Alpha and widely believed to have come from OpenAI randomly appeared in OpenRouter, a platform that AI nerds use to test new systems.

Nothing is official yet. But all of this suggests that OpenAI is quietly preparing to release a new version of their GPT-5 model. Industry sources point to a potential release date as early as November 24.

If GPT-5.1 is for real, what new capabilities will the model have?

As a former OpenAI Beta tester—and someone who burns through millions of GPT-5 tokens every month—here’s what I’m expecting.

A larger context window (but still not large enough)

An AI model’s context window is the amount