Anthropic has expanded Claude Sonnet 4’s context window to 1 million tokens, matching OpenAI’s GPT-4.1 and enhancing its ability to process large code bases and document sets in one request.

The new science of “emergent misalignment” explores how PG-13 training data — insecure code, superstitious numbers or even ...

The return of GPT-4o comes after what Altman described as OpenAI underestimating "how much some of the things that people like in GPT-4o matter to them." In an attempt to simplify its offerings, ...

ChatGPT’s GPT-5 rollout brings new modes and restores legacy models, reflecting OpenAI’s efforts to align AI performance and personality with user preferences.

SAM Altman has a good problem. With 700 million people using ChatGPT on a weekly basis – a number that could hit a billion ...

OpenAI’s latest large language model has achieved seemingly underwhelming improvements in performance, leading to questions ...

A tech entrepreneur's LinkedIn post boasting about replacing his operations team with ChatGPT sparked online ridicule. He ...

OpenAI is overhauling GPT-5’s personality after user complaints, introducing warmer tones, more customization, and restoring ...

The OpenAI CEO said GPT-5 will soon have a "warmer" personality after complaints about its tone and the brief removal of ...

In an interview, the head of ChatGPT says ‘we have to give people some level of predictability when there’s a major change.’ ...

OpenAI updates ChatGPT model picker to let paid users select older models like GPT-4o, with more legacy options in settings.

At launch, GPT-5's Thinking model was limited to 200 messages per week for Plus subscribers, now Altman says the rate limits ...