# Z.ai — AI model releases

Z.ai has 13 AI model releases tracked on AI Release Tracker, from Mar 14 2023 through Aug 26 2026. Chinese AI lab spun out of Tsinghua University (formerly Zhipu AI), building the open-weight GLM family. Rebranded internationally as Z.ai in 2025.

Official site: https://z.ai

## Releases, newest first

| Model | Release date | Licensing | Context window | Page |
| --- | --- | --- | --- | --- |
| GLM-5.3-Flash | Aug 26 2026 | Open Weight | 1M | https://aireleasetracker.com/model/zai/glm-5.3-flash |
| GLM-5.3 | Aug 14 2026 | Open Weight | — | https://aireleasetracker.com/model/zai/glm-5.3 |
| GLM-5.2 | Jun 16 2026 | Open Weight | 1M | https://aireleasetracker.com/model/zai/glm-5.2 |
| GLM-5.1 | Apr 7 2026 | Open Weight | 200k | https://aireleasetracker.com/model/zai/glm-5.1 |
| GLM-5 | Feb 12 2026 | Open Weight | — | https://aireleasetracker.com/model/zai/glm-5 |
| GLM-4.7 | Dec 22 2025 | Open Weight | 128k | https://aireleasetracker.com/model/zai/glm-4.7 |
| GLM-4.6 | Sep 30 2025 | Open Weight | 200k | https://aireleasetracker.com/model/zai/glm-4.6 |
| GLM-4.5 | Jul 28 2025 | Open Weight | 128k | https://aireleasetracker.com/model/zai/glm-4.5 |
| GLM-4.5-Air | Jul 28 2025 | Open Weight | — | https://aireleasetracker.com/model/zai/glm-4.5-air |
| GLM-4-Plus | Aug 29 2024 | Closed | — | https://aireleasetracker.com/model/zai/glm-4-plus |
| GLM-4-9B | Jun 5 2024 | Open Weight | — | https://aireleasetracker.com/model/zai/glm-4-9b |
| GLM-4 | Jan 16 2024 | Closed | — | https://aireleasetracker.com/model/zai/glm-4 |
| ChatGLM-6B | Mar 14 2023 | Open Weight | — | https://aireleasetracker.com/model/zai/chatglm-6b |


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Canonical page: https://aireleasetracker.com/company/zai
Site index: https://aireleasetracker.com/llms.txt
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.