Sam Altman said OpenAI has plans to unify its o-series and GPT-series models, and that free ChatGPT users will get unlimited chat access to GPT-5.

OpenAI has effectively canceled o3, which was slated to be its next major AI model release, in favor of what CEO Sam Altman ...

If you're a free ChatGPT user, you best make sure your 2 uses per month of Deep Research are for queries your really want or need answered.

ChatGPT users, including at the free tier, will see GPT-4.5 and GPT-5 next. The hot AI company wants to simplify its GPT and ...