Z.ai
UNCLAIMEDAdvanced AI Chatbot & Agent powered by GLM-5.3-Flash
Overview
ai is the international brand of Zhipu AI, a Beijing company that grew out of Tsinghua University and develops the GLM family of large language models. 3-Flash, alongside a developer API platform and a subscription aimed at AI coding tools. 5, plus vision models such as GLM-5V Turbo.
About Z.ai
Z.ai is the international brand of Zhipu AI, a Beijing company that grew out of Tsinghua University and develops the GLM family of large language models. It offers a free chat assistant and agent at its consumer site, currently running GLM-5.3-Flash, alongside a developer API platform and a subscription aimed at AI coding tools.
The API covers several generations of GLM text models, from the current GLM-5.3 line back to GLM-4.5, plus vision models such as GLM-5V Turbo, CogVideoX-3 for video generation, and a slide-making agent. A few lightweight Flash models are free to call, and the rest are billed per million tokens. The company publishes open weights for most of its models, typically under the MIT license, so they can also be self-hosted.
The GLM Coding Plan is a monthly subscription that brings GLM models into tools like Claude Code, Cline, and OpenCode, with usage credits that reset every five hours and weekly, plus MCP tools for vision, web search, and web reading. Zhipu was founded in 2019 and listed on the Hong Kong Stock Exchange in January 2026.
Demo video Locked
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Claim to unlock →✨ Key Features
GLM language models
Text models from GLM-4.5 through the GLM-5.3 series.
Free chat assistant
A web chatbot and agent powered by GLM-5.3-Flash.
Open weights
Most models are released with open weights, usually MIT-licensed.
Vision and video models
GLM-5V Turbo for images and CogVideoX-3 for video generation.
GLM Coding Plan
A subscription for using GLM inside AI coding tools.
Free Flash models
Some lightweight Flash models are free to call via the API.
🎯 Target Audience
Software developers
Use GLM in Claude Code, Cline, or OpenCode through the Coding Plan.
AI application builders
Call GLM models through the API at low per-token prices.
Self-hosting teams
Download open-weight GLM models to run on their own hardware.
Everyday users
Chat, research, and create slides with the free assistant.
Enterprises
Contact sales for token bundles and custom deployments.
⚖️ Pros & Cons
Pros
Cons
Founder / CEO Locked
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Claim to unlock →Pricing Prices from the maker · check the maker's own site for current plans
GLM-4.7-Flash
$0 /1M tokens
- Free API model
- Also free: GLM-4.5-Flash, GLM-4.6V-Flash
GLM-5.3-Flash
$0.15 /1M tokens
- Input price
- $0.50 per 1M output tokens
GLM-5.3
$1.40 /1M tokens
- Input price
- $4.40 per 1M output tokens
- Current flagship model
Coding Plan Lite
$18 /mo
- 2,000 credits per 5 hours
- 10,000 credits per week
- Works with Claude Code, Cline, OpenCode
- Pro and Max tiers available
❓ Frequently Asked Questions
Is Z.ai free?
The Z.ai chat assistant is free to use, and several Flash models are free through the API. Larger models are billed per token, and the GLM Coding Plan starts at $18 per month.
Does Z.ai have an API?
Yes. Z.ai offers a developer API for its GLM text, vision, and video models, with documentation, API keys, and token bundles.
Are GLM models open source?
Zhipu publishes open weights for most of its GLM models, usually under the MIT license, so they can be downloaded and self-hosted.
Can I use GLM with Claude Code?
Yes. The GLM Coding Plan is designed for Claude Code and also supports Cline, OpenCode, and other tools.
Who makes Z.ai?
Z.ai is the international brand of Zhipu AI, founded in 2019 in Beijing by Tsinghua University professors and listed in Hong Kong in January 2026.
What is Z.ai?
Meet Z.ai, the AI assistant powered by GLM-5.3-Flash. Build websites, write code, handle long-horizon tasks, and get instant answers. Fast, smart, and reliable.
What are the key features of Z.ai?
Z.ai offers 6 main features. GLM language models: Text models from GLM-4.5 through the GLM-5.3 series. Free chat assistant: A web chatbot and agent powered by GLM-5.3-Flash. Open weights: Most models are released with open weights, usually MIT-licensed. Vision and video models: GLM-5V Turbo for images and CogVideoX-3 for video generation. GLM Coding Plan: A subscription for using GLM inside AI coding tools. Free Flash models: Some lightweight Flash models are free to call via the API.
How much does Z.ai cost?
Z.ai uses a Freemium pricing model. Available plans include GLM-4.7-Flash at $0/1M tokens, GLM-5.3-Flash at $0.15/1M tokens, GLM-5.3 at $1.40/1M tokens, Coding Plan Lite at $18/mo.
What are the pros and cons of Z.ai?
Key advantages include: Free chat assistant and several free API models; Open weights for most models; Low per-token pricing compared with many frontier APIs; Coding Plan works with popular AI coding tools. Potential drawbacks: Coding Plan usage is capped by five-hour and weekly credit limits; Many overlapping model versions can make selection confusing; Data-residency concerns may matter for some organizations given the company's base in China.
What type of tool is Z.ai?
Z.ai is listed under AI Models on Ai Product Index.
Does Z.ai offer a free plan?
Yes, Z.ai offers a free plan. Free API model. Also free: GLM-4.5-Flash, GLM-4.6V-Flash
SIDE BY SIDE
Z.ai vs Replicate vs LM Studio
See at a glance which tool leads on each point. ★ = best in row
| CRITERIA | Z | R  Replicate VERIFIED | L  LM Studio UNCLAIMED |
|---|---|---|---|
| Best for | Advanced AI Chatbot & Agent powered by GLM-5.3-Flash | Run AI with an API | LM Studio Bionic - Agent for Work and Code |
| Starting price | Freemium | Freemium | $20 / month |
| Free plan | Yes | Yes | Yes |
| Verified listing | No | Yes ★ Only one | No |
| Pricing model | Freemium | Freemium | Freemium |
| Founded | 2019 ★ Longest running | 2019 ★ Longest running | 2023 |
| Links | View listing | View listing | View listing |
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