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 ...

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 ...

It’s been a tumultuous week for OpenAI, full of executive departures and major fundraising developments, but the startup is back at it, trying to convince developers to build tools with its AI models ...

OpenAI’s new demo shows developers how to build real-time voice agents with handoffs, tools and production-style ...

OpenAI has introduced the o1 series, its most sophisticated AI models to date, which are designed to excel at complex reasoning and problem-solving tasks. The o1 models, which use reinforcement ...