ChatGPT
ChatGPT is OpenAI's flagship conversational AI assistant, available on web, mobile, and desktop. It has evolved from a simple chat interface into a full productivity platform with memory, autonomous research, persistent projects, and multimodal capabilities.
In This Section
Overview & Plans
Plan tiers, pricing, and what features each plan unlocks - Free through Enterprise.
Models in ChatGPT
GPT-6 Astra, GPT-6 Luna, and the built-in adaptive thinking model family - what each one does and when to use it.
Memory
How ChatGPT remembers you - saved memories, conversation history reference, and Temporary Chat.
Deep Research
Autonomous research agent that synthesizes hundreds of sources into analyst-grade reports.
Projects
Persistent workspaces with custom instructions, file storage, and cloud connector integrations.
Apps
Web, iOS, Android, Mac, and Windows apps - feature differences and platform-specific integrations.