AI provider / z.ai
z.ai
The provider behind the GLM line, now positioned as z.ai with a catalog spanning text, vision, image, video and agent products.
z.ai is now easier to read as a full platform than as a single GLM endpoint. The company timeline runs from the original GLM work and ChatGLM era to GLM-5.2 today, while the current docs extend the stack into GLM-5V, GLM-Image, CogVideoX and AutoGLM agents.
That combination matters because it ties frontier language-model work to usable product surfaces. z.ai is shipping not only text models, but a catalog where vision, image generation, video and agent products are all attached to the same operating story.
Model catalog
Every release in this provider’s model line.
Each row is a distinct model release — its date, its type and the traits it is known for. Open a source to dig into any of them.
| Model | Released | Type | Key traits | Source |
|---|---|---|---|---|
| GLM-5.2 | Jun 2026 | Flagship |
| z.ai |
| GLM-5.1 | Apr 2026 | Version update |
| z.ai |
| GLM-5 | Feb 2026 | Flagship |
| z.ai |
| GLM-4.7 | Dec 2025 | Version update |
| z.ai |
| GLM-4-Voice & AutoGLM | Oct 2024 | Agent release |
| z.ai |
| GLM-4-9B & GLM-4V-9B | Jun 2024 | Open release |
| z.ai |
| GLM-4 | Jan 2024 | Flagship |
| z.ai |
| ChatGLM | Mar 2023 | Product line |
| z.ai |
| GLM-130B | Aug 2022 | Scale-up |
| z.ai |
| GLM | Mar 2021 | Research |
| z.ai |
| ZhipuAI founded | Mar 2019 | Company milestone |
| z.ai |
Timeline
A practical timeline of model releases and company milestones.
This page tracks the moments that matter most: major model releases, version jumps and company moves that changed how this provider shows up in the AI market.
GLM-5.2 becomes the latest public top tier.
By mid-2026 the provider is positioning GLM-5.2 as the current leading edge of its text and reasoning catalog.
GLM-5 starts a new generation for the main line.
The move from the GLM-4 series to GLM-5 resets the provider story around a newer flagship tier.
GLM-4-Voice and AutoGLM move the company into productized agents.
z.ai starts to connect frontier model work with agent workflows, not just standalone text or chat endpoints.
ChatGLM brings GLM into public chat usage.
The chat era makes GLM much more visible to developers and the broader market, not only to research audiences.
GLM gives the company its original model identity.
The early GLM work becomes the naming and technical backbone for everything that follows in the provider catalog.
ZhipuAI is founded, the base that later becomes z.ai.
The company starts as a research-driven Chinese AI lab and becomes the organization behind the GLM model family.