GLM 5.3
GLM-5.3 is a large language model from Z.ai that reuses the GLM-5.2 base model, with gains coming entirely from added reinforcement learning post-training on coding and long-horizon agentic tasks. It supports three reasoning effort levels (low, high, max) and reaches open-weight state of the art on coding benchmarks such as Terminal-Bench 3.0 and Agents' Last Exam, plus strong vulnerability discovery and exploitation performance on cybersecurity benchmarks like CyberGym and ExploitBench.
- Type
- Text
- Weights
- Open
- Downloads
- 1.4M
- Likes
- 1.9k
- Pipeline
- text generation
- License
- other
Model hub
zai-org/GLM-5.3
- Repo
- zai-org/GLM-5.3
- Library
- transformers
- Access
- Public
Technical tags and languages
Papers
1
Related tools
2
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About Z.ai
1
Z.ai develops the GLM family of foundation models and related generative-AI applications and developer services.
Tools using GLM 5.3
27
- Client-ready reports at their own URL
- Ormind 1.0
- Business reports
- www.ormind.ai
- Free + from $25.00/mo
- 18,811 214 4.4
- Z.ai v5.3 Flash
- Large language models
- Cmt 🙏 5 karma
- Oct 29, 2025
- @Z.ai
- ChatGPT
- 🇨🇳 China
- 100% Free
- 3,788 75 4.0
- Meet your 1st Agent Team
- Raft 1
- Agents
- raft.build
- Huxley Peckham 🛠️ 1 tool 🙏 1 karma