The biggest mistake people make when trying to get their ChatGPT API key is that they use the wrong URL. The key can't be found at chatgpt.com. Instead, point your browser to the OpenAI developer ...

OpenAI is expanding GPT-5.6 access across ChatGPT, Codex, and API with Sol, Terra, and Luna models for different workloads.

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 ...

Model rollout: GPT-5.5 Instant became the default ChatGPT model on May 5, 2026, replacing GPT-5.3 Instant. Improved intent recognition: The update enhances the model's ability to detect user goals and ...