1,000 Scientist AI Jam Session
OpenAI and nine national labs bring together leading scientists for first-of-its kind event.
Supporting sellers with enhanced product listings
Mercari leverages GPT-4o mini and GPT-4 to streamline selling, enhance product listings, and boost sales, transforming the online marketplace with features like AI Listing Support and Mercari AI Assistant.
OpenAI GPT-4.5 System Card
We’re releasing a research preview of OpenAI GPT‑4.5, our largest and most knowledgeable model yet.
Introducing GPT-4.5
We’re releasing a research preview of GPT‑4.5—our largest and best model for chat yet. GPT‑4.5 is a step forward in scaling up pre-training and post-training.
Building an autonomous financial analyst with o1 and o3-mini
Endex builds the future of financial analysis, powered by OpenAI’s reasoning models.