# ChatGPT vs Z.ai Chat

> ChatGPT: OpenAI's AI assistant for writing, research, coding, image generation and voice chat
> Z.ai Chat: Free GLM-powered AI chatbot and agent from Zhipu AI for writing, coding and research

- ChatGPT profile: https://finderatlas.com/tools/chatgpt
- Z.ai Chat profile: https://finderatlas.com/tools/z-ai
- Comparison page: https://finderatlas.com/compare/chatgpt-vs-z-ai
- Last reviewed: October 2026

## Verdict

ChatGPT and Z.ai Chat are both AI Assistants tools. ChatGPT scores higher in FinderAtlas's editorial review (8.9 vs 8.0 out of 10). Both have a free plan or trial. Only ChatGPT is available on Windows, macOS and iOS. Only Z.ai Chat offers an API.

### Choose ChatGPT if

- You want a tool built for everyday questions, drafting and editing text, summarizing documents, coding help, data analysis and image generation in one assistant.
- One assistant covers text, voice, images, file analysis, search and coding.
- Free tier lets users try the service without a card.

### Choose Z.ai Chat if

- You want a tool built for trying GLM models at no cost, drafting and summarizing text, coding questions, low-cost API experimentation.
- Free web chat with recent GLM models and no subscription needed.
- Low per-token API prices, such as $0.15 input and $0.50 output per 1M tokens for GLM-5.3-Flash.

## Pricing

| | ChatGPT | Z.ai Chat |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | ChatGPT | Z.ai Chat |
| --- | --- | --- |
| Chat with web search | Yes | Not listed |
| Voice mode | Yes | Not listed |
| Image generation | Yes | Not listed |
| File and image analysis | Yes | Not listed |
| Projects | Yes | Not listed |
| ChatGPT agent | Yes | Not listed |
| Codex | Yes | Not listed |
| Connectors and apps | Yes | Not listed |
| GLM Chat | Not listed | Yes |
| Agent Capabilities | Not listed | Yes |
| Vision Understanding | Not listed | Yes |
| Coding Assistance | Not listed | Yes |
| GLM Coding Plan | Not listed | Yes |
| Web Search and Web Reader MCP | Not listed | Yes |
| Z.ai API Platform | Not listed | Yes |
| Open-Weights Models | Not listed | Yes |

## Platforms

| Platform | ChatGPT | Z.ai Chat |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | Yes | No |
| macOS | Yes | No |
| iOS | Yes | No |
| Android | Yes | No |
| API | No | Yes |
| Browser Extension | No | No |

## ChatGPT strengths

- One assistant covers text, voice, images, file analysis, search and coding
- Free tier lets users try the service without a card
- Apps for web, iOS, Android, macOS and Windows with synced history
- Large ecosystem of connectors, projects and agent features
- Plans range from $8 to $500 per month, so users can match spend to usage

## ChatGPT limitations

- Free and Go usage limits are low and may include ads
- Pricing and model lineup change often, which makes limits hard to compare over time
- Answers can be wrong and need checking, especially for facts and citations
- The top Pro tiers cost $100 to $500 per month

## Z.ai Chat strengths

- Free web chat with recent GLM models and no subscription needed.
- Low per-token API prices, such as $0.15 input and $0.50 output per 1M tokens for GLM-5.3-Flash.
- Many GLM models are open-weights, so they can be self-hosted.
- The Coding Plan works with 20+ existing coding agent tools rather than locking users into one editor.
- Vision, search and reader tools are included in Coding Plan tiers.

## Z.ai Chat limitations

- No confirmed official native iOS or Android app for the chat.
- Coding Plan terms have changed several times (legacy plans replaced by credits on July 30, 2026), which makes usage harder to predict.
- Service is operated by a China-based company, which may be a concern for data-residency-sensitive users.
- Free chat usage limits are not publicly documented.

## FAQ

**Is ChatGPT better than Z.ai Chat?**

It depends on your workflow. ChatGPT is built for everyday questions, drafting and editing text, summarizing documents, coding help, data analysis and image generation in one assistant. Z.ai Chat is built for trying GLM models at no cost, drafting and summarizing text, coding questions, low-cost API experimentation.

**What are the key feature differences between ChatGPT and Z.ai Chat?**

ChatGPT: OpenAI's AI assistant for writing, research, coding, image generation and voice chat. Z.ai Chat: Free GLM-powered AI chatbot and agent from Zhipu AI for writing, coding and research. ChatGPT is rated 4.0/5 from 1 user review.

**Does ChatGPT or Z.ai Chat have a free plan?**

Yes, both do. ChatGPT is freemium and Z.ai Chat is freemium, and each has a free plan or trial.

**Which is cheaper, ChatGPT or Z.ai Chat?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.