GLM-5.2

GLM-5.2

GLM-5.2 is Z.ai's open-source coding and long-horizon task model released in June 2026, notable for a claimed 1M-token context window, MIT license, and the IndexShare Architecture sparse-attention optimization.

Key facts

  • Publisher: Z.ai [src-095, src-096]
  • Release signal: 2026-06-13 announcement on OpenLM.ai, with official Hugging Face repository created shortly after [src-095, src-096]
  • License: MIT, according to the OpenLM announcement and Hugging Face model metadata [src-095, src-096]
  • Context claim: Z.ai says the model supports a solid 1M-token context for long-horizon work [src-095, src-096]
  • Architecture claim: IndexShare Architecture reuses the same indexer across every four sparse attention layers, reducing per-token FLOPs by 2.9x at 1M context [src-095, src-096]
  • Operational relevance: The model should be watched as a possible open-model option for long-context coding agents, especially where cost, privacy, and local control matter [src-095, src-096].

Related entities

Related concepts

Source references

  • [src-095] Z.ai – "GLM-5.2 | OpenLM.ai" (2026-06-13)
  • [src-096] Z.ai / Hugging Face – "zai-org/GLM-5.2" (2026-06-16)

Robin Cartier perspective

This page is part of Robin Cartier's working AI knowledge graph: a practical research layer for production AI, recommendation systems, experimentation, GEO, and agentic web readiness.

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  2. Wiki concept IndexShare Architecture IndexShare is Z.ai's sparse-attention architecture claim for GLM-5.2, described as reusing the same indexer across every four sparse attention layers to reduce per-token FLOPs Related by 096
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