GitHub has accidentally announced OpenAI’s new range of GPT-5 models. A now-deleted GitHub blog post reveals that GPT-5, which will be available in four different versions, offers “major improvements in reasoning, code quality, and user experience.”

GitHub accidentally leaked OpenAI's GPT-5 models ahead of their official announcement. Here's everything you need to know about this long-anticipated release.

The updates are an admission that GPT-5's routing of requests is not to the taste of every user, and it needs to do more work. After Altman's admission on X, OpenAI VP and Head of ChatGPT, Nick Turley, admitted, "We're not always going to get everything on try #1," but said he was "very proud of how quickly the team can iterate."