ChatGPT vs Z.ai Chat
ChatGPT: OpenAI's all-round assistant for writing, analysis, images and voice. Z.ai Chat: A free chatbot built on Zhipu's GLM models, good at coding and building web pages. Here is how they compare on features, pricing, platforms, pros and cons.
Quick verdict
ChatGPT
Best for: Anyone who wants one assistant for everyday writing, research and brainstorming.
Stands out for: Handles a very wide range of tasks; Apps on most devices.
Z.ai Chat
Best for: Developers and tinkerers who want to try a strong open-weight model family for free.
Stands out for: Free to use; Models are also released with open weights.
Side-by-side comparison
| Visit chatgpt.com (opens in a new tab) | Visit chat.z.ai (opens in a new tab) | |
|---|---|---|
| What it is | OpenAI's all-round assistant for writing, analysis, images and voice. | A free chatbot built on Zhipu's GLM models, good at coding and building web pages. |
| Pricing | Free + Paid | Free |
| Free to use | Yes | Yes |
| Category | AI Chatbots & Assistants | AI Chatbots & Assistants |
| Editor rank | #1 in category | #19 in category |
| Made by | OpenAI | Zhipu AI |
| Best for | Anyone who wants one assistant for everyday writing, research and brainstorming. | Developers and tinkerers who want to try a strong open-weight model family for free. |
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ChatGPT vs Z.ai Chat: questions
Is ChatGPT better than Z.ai Chat?
Neither wins for everyone. Our editors rank ChatGPT slightly higher overall in AI Chatbots & Assistants, but Z.ai Chat can be the better fit: Developers and tinkerers who want to try a strong open-weight model family for free.
Which is free, ChatGPT or Z.ai Chat?
Both can be used without paying: ChatGPT is free + paid and Z.ai Chat is free. Paid plans add more usage or features.
Can I use ChatGPT and Z.ai Chat together?
Yes. Many people keep both and pick per task, for example draft emails, essays and reports from a short brief with ChatGPT, and generate a landing page from a short brief with Z.ai Chat.