**GPT-5.5 Instant Released for All
**
GPT-5.5 Instant has been released **for everyone**—the new model is now the default in ChatGPT even for free users, replacing GPT-5.3 Instant.

The AI has become smarter, provides more concise answers, adapts better to the user,** and hallucinates half as often.**

  You can try it out in [ChatGPT.](https://chatgpt.com/)** **The update is rolling out gradually.