AI Model Release Tracker
Latest releaseClaude Sonnet 5.5

Z.ai

13 releases · Mar 2023 – Aug 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. AI Release Tracker has logged 13 Z.ai models, from ChatGLM-6B (Mar 14 2023) through GLM-5.3-Flash (Aug 26 2026). Every release below links to a dedicated page with benchmarks, parameters, and context window.

A new Z.ai model typically arrives about every 54 days, with the next projected around Monday, Oct 19, 2026. Its strongest benchmark results to date include GDPval-AA v2 (1773, on GLM-5.3-Flash), CyberGym (84.5%, on GLM-5.3), and AutomationBench (48.8%, on GLM-5.3-Flash). 11 of the 13 models tracked here are open-weight or open-source; the rest are closed.

Release cadence

Expected next release
Mon, Oct 19
Days since last releaseTypically every 54 days
 
Recent intervals
Wed, 26 Aug 2026 · GLM-5.3-Flash
12
Fri, 14 Aug 2026 · GLM-5.3
59
Tue, 16 Jun 2026 · GLM-5.2
70
Tue, 7 Apr 2026 · GLM-5.1
54
Thu, 12 Feb 2026 · GLM-5
52

Releases by year

Year-over-year totals for Z.ai. The current year is partial.

0134520222023202420252026YTD

Releases by day of week

Which days of the week Z.ai ships on.

Best benchmark scores

GDPval-AA v2
GLM-5.3-Flash
1773
#3 of 20
CyberGym
GLM-5.3
84.5%
#4 of 13
AutomationBench
GLM-5.3-Flash
48.8%
#4 of 13
ProgramBench
GLM-5.2
0%
#5 of 17
Terminal-Bench 2.1
GLM-5.3
88.2%
#6 of 32
Humanity's Last Exam
GLM-5.3
62.5%
#8 of 45

All releases

13 releases · Mar 14 2023 – Aug 26 2026

Frequently asked questions

The most recent Z.ai model tracked on AI Release Tracker is GLM-5.3-Flash, released on Aug 26 2026.

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