OpenAI's chat interface for its GPT models.
The chat product most people meet AI through. Useful as a second opinion when a model gets stuck on your main tool.
Works with
Key info
- Pricing
- Freemium
- Platform
- Web · iOS · Android
- Category
- Chats
- Best for
- Beginner
- Free plan
- Yes, with limits on messages, uploads and images
- Paid plans from
- $8 a month (Go); Plus is $20
- Models
- GPT
- Skills
- Upload your own as a ZIP; see the skills hub
- Included on paid plans
- Deep research and agent mode, on Plus and above
- Good for
- Everyday questions, images and voice chat
Related reading
- Context engineering
Installing skills safely
A skill is instructions your agent will follow, and sometimes scripts it will run with your permissions. Treat installing one like adding a dependency, not l…
Intermediate - Context engineering
What an agent skill is
A skill is a folder with a SKILL.md file in it. The file starts with a name and a one-line description, followed by instructions written for the agent.
Beginner - Context engineering
Writing your first skill
You already have a skill in you: the thing you keep typing into every session. Write it down once.
Intermediate