OpenAI has retired GPT-4o and other older models from ChatGPT today, citing a shift to newer GPT-5 systems amid controversy and legal scrutiny.

OpenAI has sent out emails notifying API customers that its chatgpt-4o-latest model will be retired from the developer platform in mid-February 2026,. Access to the model is scheduled to end on ...

OpenAI said on Monday that it would soon wind down the availability of GPT-4.5, its largest-ever AI model, via its API. GPT-4.5 was released only in late February. Developers will have access to GPT-4 ...

OpenAI has released an update for ChatGPT's GPT-5.2 Instant model that improves response style and tone, delivering clearer answers with key information up front.

OpenAI will soon retire GPT-4, an AI model it launched over two years ago, from ChatGPT, according to a changelog posted on Thursday. Effective April 30, GPT-4 will be “fully replaced” by GPT-4o, the ...

OpenAI has upgraded ChatGPT Deep Research with GPT-5.2, website-specific search, and real-time controls, giving users ...

OpenAI has released its GPT‑3.5 Turbo API to developers as of Monday, bringing back to life the base model that powered the ChatGPT chatbot that took the world by storm in 2022. It will now be ...

CNBC is now accepting nominations for the 2026 Disruptor 50 list. Submit a nomination before February 23. OpenAI on Thursday announced GPT-5, its latest and most advanced AI model. The company said ...