OpenAI's ChatGPT gets new models for faster, more accurate answers
OpenAI has rolled out GPT-5.1, bringing two new models—Instant and Thinking—to ChatGPT.
Instant is all about speedy, friendly replies for everyday stuff, while Thinking takes its time to handle tougher questions with more depth and accuracy.
The result? Fewer mistakes and better answers in logic, math, and planning.
Instant and thinking models
Both models now sound more natural in conversation and are better at following instructions.
ChatGPT can automatically pick the right model for your question or let you choose between Instant and Thinking models—so you get answers your way.
Transparency in thinking mode
Thinking mode now shows a simple step-by-step of how it figures things out—but if you're in a hurry, you can jump straight to the answer.
It's transparency when you want it, control when you need it.
The update is live for Plus, Business, and Pro users
The update is live for Plus, Business, and Pro users (with message limits depending on your plan).
You can now send longer prompts—up to 196k tokens in Thinking mode—and enjoy smoother performance across all ChatGPT tools, whether you're studying or working on projects.