GLM-5.2 introduces a solid 1M-token context window with IndexShare architecture that reduces per-token FLOPs by 2.9× at extended context lengths. The model adds flexible thinking effort levels for coding tasks and improves the MTP layer for speculative decoding, increasing acceptance length by up to 20%.
Zhipu AI has released GLM-5.2, a 753 billion parameter model featuring a 1 million token context window and MIT open-source license. The model scores 62.1% on SWE-bench Pro and 91.2% on GPQA-Diamond, with flexible reasoning effort levels for coding tasks.
Z.ai has released GLM-5.2, a model designed for long-horizon engineering tasks with a 1 million token context window. The model is priced at $1.40 per million input tokens and $4.40 per million output tokens, and was released on June 16, 2025.