AI chat assistant
ChatGPT
ChatGPT is OpenAI's AI assistant for consumers, teams and companies. It runs on the web, in a desktop app for macOS and Windows and in mobile apps, and is sold in Free, Go, Plus, Pro, Business, Edu and Enterprise plans. In October 2026 it answers with the GPT-6 model family and includes ChatGPT Work and Codex.
Last reviewed 28 Oct 2026 · by OpenAI
Facts at a glance
| Developer | OpenAI |
|---|---|
| Type | AI chat assistant with agentic Work mode |
| Surfaces | Web, ChatGPT desktop app for macOS and Windows, ChatGPT mobile app source |
| Individual plans | Free $0, Go $8, Plus $20 per month; Pro at $100, $200 or $500 per month source |
| Business plan | $20 per user per month billed annually, $25 billed monthly, 2+ users source |
| Default models (October 2026) | GPT-6 Sol for Plus, Pro, Business and Enterprise; GPT-6 Luna for Free and Go source |
What ChatGPT is used for
ChatGPT answers questions, writes and edits text, analyses files and images, searches the web and, through ChatGPT Work and Codex, carries out longer tasks across apps and code. OpenAI publishes product changes in the ChatGPT and Codex changelog on its developer site and in a weekly What's new digest. The timeline below lists every story on this site that names ChatGPT.
Questions people ask
- How much does ChatGPT cost?
- OpenAI lists Free at $0, Go at $8 and Plus at $20 per month, Pro at $100, $200 or $500 per month, and Business at $20 per user per month billed annually. Enterprise and Edu are sold through sales.
- Where does ChatGPT run?
- On the web at chatgpt.com, in the ChatGPT desktop app for macOS and Windows, and in the ChatGPT mobile app.