OpenAIModel update· 13 Nov

GPT-5.1 is now available in the API with faster adaptive reasoning, extended prompt caching, improved coding performance, and new apply_patch and shell tools.

OpenAIModel update· 12 Nov

OpenAI is upgrading the GPT-5 series with warmer, more capable models and new customization options for ChatGPT's tone and style. GPT-5.1 begins rolling out today to paid users.

OpenAIModel update· 12 Nov

OpenAI released a system card addendum for GPT-5.1 Instant and Thinking that provides updated safety metrics, including new evaluations for mental health and emotional reliance.

OpenAI· 7 Jan

Tolan built a voice-first AI companion using GPT-5.1, combining low-latency responses, real-time context reconstruction, and memory-driven personalities for natural conversations.