4
Coding
Positioned for long software tasks; reports cite large gains on coding benchmarks (the company's own figures).
GLM (Z.ai): what it is and what it is best at
Z.ai's open-weight GLM models, focused on long-horizon coding and agents.
The short version
At a glance
Made byZhipu AI
CategoryModel makers
Strongest atcoding, agents & automation, privacy & control
NameGLM stands for General Language Model, the architecture name used by Zhipu AI, now operating as Z.ai.
Overview
What GLM (Z.ai) is
GLM is the model family from Zhipu AI, branded Z.ai internationally. Recent releases are large open-weight mixture-of-experts models aimed at coding and agentic workflows.
Mistral said it began offering GLM models to its customers, which illustrates how the open-weight ecosystem is mixing providers.
Current models. Public reports describe GLM-5 (February 2026), GLM-5.2 (June 2026) and GLM-5.3 (August 2026, weights released later that month). Parameter counts differ between sources.
Where it is strong
Capability profile
Scores are Halden’s editorial view of typical fit on a 0–5 scale. They are not benchmark results and will differ by task, model version and plan: test on your own work.
Coding, analytics, documents, research
How it performs by task
3
Analysis & analytics
Reasonable; best with tool use and review.
3
Documentation & writing
Adequate; less tuned for tone.
3
Research
Usable with search; verify sources.
Practical tips
Get more from GLM (Z.ai)
- Read the licence: it includes conditions for very large companies.
- Evaluate on your own repositories before committing.
- Use it through a platform that handles hosting if you cannot self-host.
Watch-outs
- Benchmark gains are mostly company-reported.
- Licence conditions may apply at scale.
What has changed recently
Latest news and releases
- GLM-5.3 launched
Reports describe a post-training update to GLM-5.2 aimed at long-horizon coding and cyber defence.
Source: TechNode - GLM-5.3 weights released
Gigazine reports the open weights were published on 29 August.
Source: Gigazine
Compiled on October 9, 2026 from public reporting, much of it secondary. Dates, names and specifications can change, so confirm on GLM (Z.ai)’s own site before you rely on them.
Go deeper
How-to guides for GLM (Z.ai) and similar tools
September 27, 2026 · 3 min readChoosing an open-weight model: DeepSeek, Qwen, Mistral and GLM comparedOpen-weight models let you host your own AI. Choosing between them is about licence, language, size, support and the evidence on your own tasks.September 25, 2026 · 3 min readAI for coding: from autocomplete to agentsCoding assistance now spans autocomplete, chat, review and autonomous agents. Knowing which to use when avoids wasted effort and avoidable risk.September 28, 2026 · 3 min readRunning open models privately: a practical starter with OllamaWhen information cannot leave your machines, open models can run locally. Here is how to start without a big infrastructure project.
Keep exploring
Compare with other tools
FAQ
GLM (Z.ai): common questions
What does GLM stand for?
General Language Model.
Is GLM open weights?
Recent GLM releases have been published with open weights; check the licence.
Who makes GLM?
Zhipu AI, operating as Z.ai.
A next step
Choose tools on evidence from your own work.
Run a short pilot with the people who will use GLM (Z.ai), measure the result, and decide with data, not hype.