Z.ai has released GLM-5.2, a 753B parameter text-only open-weight LLM under the MIT license, positioning it as the leading open model on the Artificial Analysis Intelligence Index. While it demonstrates exceptional performance in coding tasks and boasts a 1 million token context window, it is noted for being significantly more token-intensive than comparable models.
Background
The release of high-performance open-weight models continues to drive competition in the AI landscape, challenging proprietary models like Claude and GPT in specific benchmarks. GLM-5.2 represents the latest iteration in Z.ai's GLM series, focusing on expanding capabilities while maintaining open access.
- Source
- Simon Willison
- Published
- Jun 18, 2026 at 07:58 AM
- Score
- 8.0 / 10