Z.ai debuts GLM-5.2 with stable 1M-token context and top coding scores
Z.ai introduces GLM-5.2 with a reliable 1M-token context window, marking a major advancement for long-horizon coding and engineering tasks.
The update delivers leading open-source scores on multiple coding benchmarks, including 81.0 on Terminal-Bench 2.1 and 62.1 on SWE-bench Pro.
Key technical innovations such as IndexShare and improved speculative decoding boost efficiency and enable practical large-scale usage.
GLM-5.2 is available under an MIT open-source license with no regional limits.
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External links
- GLM-5.2: Built for Long-Horizon TasksZ.ai Blog • Official source
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