What is Z.ai?
Z.ai is the chat interface from Zhipu AI for its GLM model family, several of which are open-weight. It offers reasoning, coding, web search and slide generation features for free.
Best for: Developers, Power users.
Key features
- GLM models
- Reasoning mode
- Coding and web dev
- Slides generation
- Open-weight models
Pros and cons
Pros
- Free access to capable models
- Strong at coding tasks
- Open weights available
Cons
- Lesser-known brand outside China
- Fewer integrations
Z.ai pricing
| Pricing model | Free |
|---|---|
| Starting price | Free |
| Platforms | Web, API |
| Launched | 2025 |
Prices change often. Check the Z.ai website for current plans.
Our verdict
Z.ai scores 7.2/10 in our review. Its biggest strength: free access to capable models. The main drawback: lesser-known brand outside China. If it isn't the right fit, ChatGPT is the closest alternative.
Frequently asked questions
What is Z.ai?
Z.ai is the chat interface from Zhipu AI for its GLM model family, several of which are open-weight. It offers reasoning, coding, web search and slide generation features for free.
Is Z.ai free?
Yes. Z.ai is free to use.
What are the best Z.ai alternatives?
Popular alternatives include ChatGPT, Canva, GitHub Copilot, Cursor.
Who is Z.ai best for?
Z.ai is best for developers, power users.