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AssistantZ.ai (Zhipu AI)

Z.ai

Zhipu's GLM assistant — frontier open-weight chat, free to use.

Categories
AssistantInference
Pricing
FREEMIUM
Source
Proprietary
Hosting
Cloud
Platforms
WebAPI
Models
Single model (proprietary)
Verified
Jun 10, 2026

Z.ai is the international assistant of Zhipu AI, built on the GLM model family. The free chat runs the flagship GLM-5 and GLM-5.1 models with reasoning and agentic modes, and the same models are served to developers over a low-cost, OpenAI-compatible API. GLM-5's open weights ship under the MIT license.

Capabilities 2

What it actually does — grouped by capability family.

  • Autonomous coding agent (secondary capability)
  • Model inference / serving (primary capability)

Pros & cons

  • Free GLM-5 chat with reasoning modes
  • OpenAI-compatible API for developers
  • Agentic modes built in
  • Trained without NVIDIA hardware
  • China-hosted data concerns
  • Younger international ecosystem
  • English UX less polished than rivals

Tags

Further reading

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Open Z.ai