Z.ai
Chinese AI lab spun out of Tsinghua University (formerly Zhipu AI), building the open-weight GLM family. Rebranded internationally as Z.ai in 2025. AI Release Tracker has logged 12 Z.ai models, from ChatGLM-6B (Mar 14 2023) through GLM-5.3 (Aug 14 2026). Every release below links to a dedicated page with benchmarks, parameters, and context window.
A new Z.ai model typically arrives about every 59 days, with the next projected around Oct 12, 2026. Its strongest benchmark results to date include BullshitBench v2 (31%, on GLM-5.2), GPQA Diamond (91.2%, on GLM-5.2), and Arena Elo (Code) (1587, on GLM-5.2). 9 of the 12 models tracked here are open-weight or open-source; the rest are proprietary.
Release cadence
Best benchmark scores
BullshitBench v2
GLM-5.2
31%
#37 of 67Best: Claude Opus 4.8 · 95%
GPQA Diamond
GLM-5.2
91.2%
#11 of 50Best: GPT-5.4-Pro · 94.4%
Arena Elo (Code)
GLM-5.2
1587
#7 of 48Best: Kimi K3 · 1679
SWE-Bench Verified
GLM-5
77.8%
#10 of 39Best: Claude Fable 5 · 95.5%
Arena Elo (Text)
GLM-5.1
1468
#23 of 31Best: Claude Fable 5 · 1509
Terminal-Bench 2.1
GLM-5.2
81%
#12 of 25Best: GPT-5.6 Sol · 88.8%
All releases
12 releases · Mar 14 2023 – Aug 14 20262024
3 releases2023
1 releaseZ.ai — frequently asked questions
- What is the latest Z.ai AI model?
- The most recent Z.ai model tracked on AI Release Tracker is GLM-5.3, released on Aug 14 2026.
- How many AI models has Z.ai released?
- AI Release Tracker tracks 12 Z.ai model releases, from ChatGLM-6B on Mar 14 2023 through GLM-5.3 on Aug 14 2026.
- What models has Z.ai released?
- Z.ai's tracked releases, newest first: GLM-5.3 (Aug 14 2026), GLM-5.2 (Jun 16 2026), GLM-5.1 (Apr 7 2026), GLM-5 (Feb 12 2026), GLM-4.7 (Dec 22 2025), GLM-4.6 (Sep 30 2025), GLM-4.5 (Jul 28 2025), GLM-4.5-Air (Jul 28 2025), GLM-4-Plus (Aug 29 2024), GLM-4-9B (Jun 5 2024), GLM-4 (Jan 16 2024), ChatGLM-6B (Mar 14 2023).
- Which benchmarks does Z.ai lead?
- Among all models tracked here, Z.ai holds the best score on Terminal-Bench 3.0 (GLM-5.3, 28.3%), ExploitBench (GLM-5.3, 54.4%), ExploitGym (6-hour budget) (GLM-5.3, 130), ExploitGym (2-hour budget) (GLM-5.3, 105), Agent's Last Exam (pass@1) (GLM-5.3, 28.5%) and AutomationBench (GLM-5.3, 48.2%).
- Does Z.ai release open models?
- Partly. 9 of 12 tracked Z.ai releases publish downloadable weights; the remaining 3 are proprietary.
- How often does Z.ai release new models?
- Across its 12 tracked releases, Z.ai has shipped a new model roughly every 114 days on average — about 3.2 releases per year.