OpenAI releases GPT-5.1: Smarter, more conversational ChatGPT
Baku, November 14, AZERTAC
OpenAI today announced the rollout of its latest AI models, the GPT 5.1 Instant and GPT 5.1 Thinking, marking a significant upgrade in both performance and interaction quality for its flagship chatbot platform ChatGPT, Kazinform News Agency correspondent reports, citing OpenAI.
According to OpenAI, the new models will begin reaching users “starting today,” first for paid tiers, eventually expanding to all users.
The update introduces two distinct model variants:
· GPT-5.1 Instant is described as the most-used model in ChatGPT’s stable, now “warmer, more intelligent, and better at following your instructions.”
· GPT-5.1 Thinking offers more advanced reasoning capabilities: it’s faster on simple tasks, more persistent on complex ones, and clearer in its responses.
From a user-experience perspective, the improvements mean less “machine-tone” in responses and more flexibility in how ChatGPT “sounds”.
For developers, improved reasoning models could enhance applications that require deeper analytical or conversational capabilities.
If you’re a paid user (Pro, Plus, Go, Business), you’re among the first to gain access. Free or logged-out users will receive the upgrade subsequently.
Legacy GPT-5 models will remain available as alternatives for about three months to give users time to compare and adapt.