About

• Multiple GPT-5.5 model tiers (Instant, Thinking, Pro) with up to 128K context window on Pro plan • Deep research, agent mode, image generation, voice and video interaction, and file/PDF uploads • Memory across chats, custom GPTs, projects, tasks, and group chats ChatGPT provides a broad AI assistant platform available on web, iOS, and Android. Users can chat, reason through complex problems, generate images, analyze documents, and automate tasks via agent mode. Paid plans unlock advanced reasoning models, expanded message limits, faster response times, and early access to new features, making it suitable for casual users through to enterprise teams.

Who it's for

General-purpose AI chat & research

Key features