OpenAI
International + ChinaCreator of ChatGPT and the GPT series of models. Offers consumer ChatGPT plans and API pricing for developers.
Basic access to GPT models on web and mobile
Higher usage limits, access to latest models, DALL·E, browsing
Unlimited access to OpenAI's best models including o1 pro mode
Team workspace with higher limits and admin controls
Enterprise-grade security, SSO, audit logs, volume discounts
Pay-as-you-go API access to GPT-5.4 and other models