OpenAI launches GPT-5.1 Instant and Thinking, upgrades to its troubled GPT-5 flagship and adds more personalization features ...

OpenAI just released two GPT-5.1 AI models with new personality options, and they're rolling out first to paid ChatGPT users.

The last time OpenAI launched a new model, GPT-5, it was largely panned. Gone was the sycophantic style of GPT-4o, leaving ...

The most immediate change in the new models is the introduction of adaptive reasoning. GPT-5.1 Instant, now the primary model for most ChatGPT users, evaluates the ...

A power user and former OpenAI Beta tester offers his take. All last week, OpenAI watchers reported seeing strange things.

The company is fighting an effort to turn over chatbot records to The New York Times, which is suing OpenAI for copyright ...