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 bringing o1, its “reasoning” AI model, to its API — but only for certain developers, to start. Starting Tuesday, o1 will begin rolling out to devs in OpenAI’s “tier 5” usage category, the ...

Application developers who access OpenAI through its long-running API will now have access to the company’s latest full o1 model, rather than the months-old o1-preview. The upgrade is one of a number ...

OpenAI unveiled new API updates at its Dev Day on Monday, introducing GPT-5 Pro, its latest language model, its new video generation model Sora 2, and a smaller, cheaper voice model. The addition of ...