PANews reported on November 13th that, according to an OpenAI announcement, GPT-5.1 has begun rolling out to all ChatGPT users this week. This version significantly improves upon custom command compliance, inference accuracy, and conversational naturalness. GPT-5.1 supports adaptive inference, intelligently extending thinking time for complex questions and providing clearer, less technical responses. GPT-5 users can continue using the software for three months, after which the Pro version will be updated to GPT-5.1 Pro.