GLM 5.2

GLM 5.2 is Z.ai's latest large language model and the current head of the open-source GLM line, released in June 2026. It pushes the series' reasoning, instruction-following, and multilingual strengths further, pairing them with a one-million-token context window and fp8 quantization for fast inference across long documents and extended analysis. Z.ai — the Chinese AI company formerly known as Zhipu AI — has shipped the GLM family under the permissive MIT license since mid-2025, and GLM 5.2 continues that fully open-weight tradition.

Within the lineup, GLM 5.2 supersedes the earlier [[sibling:zai-org-glm-5-1|GLM 5.1]] (April 2026) and [[sibling:zai-org-glm-5|GLM 5]] (February 2026), and stands above the prior-generation [[sibling:zai-org-glm-4.7|GLM 4.7]]. It builds on the same core line rather than the lighter Turbo and Flash variants, positioning it as the reasoning-focused workhorse of the family.

With reasoning, tool calling, and web search built in, GLM 5.2 is best suited to agentic workflows, long-context retrieval and analysis, and multilingual tasks where capable reasoning at a lower cost than frontier closed models matters.

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