[OpenAI · openai.com](<https://openai.com/index/gpt-5-1/>)

# GPT-5.1: A smarter, more conversational ChatGPT

We’re upgrading the GPT-5 series with warmer, more capable models and new ways to customize ChatGPT’s tone and style. GPT-5.1 starts rolling out today to paid users.

1. [New Releases · OpenAI](<https://curation.space/openai/new-releases>)