#gpt-51

#gpt-51

The feature, currently being tested in select regions including Japan, New Zealand, South Korea, and Taiwan, lets users collaborate directly within the app. The group chat is available to Free, Plus, and Team users on both mobile and web platforms. OpenAI says the pilot is designed to explore how people use group conversations in ChatGPT. The announcement comes after earlier reports that OpenAI had been testing a direct-message-style tool.

OpenAI is releasing GPT-5.1 today, an update to the flagship model it released in August. OpenAI calls it an "upgrade" to GPT-5 that "makes ChatGPT smarter and more enjoyable to talk to." The new models include GPT-5.1 Instant and GPT-5.1 Thinking. The former is "warmer, more intelligent, and better at following your instructions" than its predecessor, per an OpenAI release, and the latter is "now easier to understand and faster on simple tasks, and more persistent on complex ones."