GPT-6.1, Claude 5.5 and Gemini 4 Argon are here

Five new models are available for your chats and agents: GPT-6.1 Terra, GPT-6.1 Sol, Claude Sonnet 5.5, Claude Haiku 5.5 and Gemini 4 Argon.

Five new models are available for your chats and agents. Open the model picker and click See all models to find them. Your plan sets which models you can use.

A model picker lists GPT-6.1 Terra, GPT-6.1 Sol, Claude Sonnet 5.5, Claude Haiku 5.5 and Gemini 4 Argon, with GPT-6.1 Terra selected.

OpenAI: GPT-6.1 Terra and GPT-6.1 Sol.
Anthropic: Claude Sonnet 5.5 and Claude Haiku 5.5.
Google: Gemini 4 Argon.