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Zai_org announced GLM-5.2 on 2026-06-16 with significant improvements in coding…

2026-06-16 · 17:40 UTC ·@Zai_org ·0 min read

Brief

GLM-5.2, announced by @Zai_org on 2026-06-16, targets frontier intelligence with major gains on coding and agentic tasks, a 1M-token context window for long-horizon work, and two reasoning-effort settings (max and high). Zai released MIT-licensed open weights and kept API pricing identical to GLM-5.1; tech blog, weights, API docs, and chat links were published alongside the release.

Why it matters

Zai_org announced GLM-5.2 on 2026-06-16 with significant improvements in coding and agentic task performance compared with prior models.

Key details

  • GLM-5.2 offers a 1,000,000-token (1M) context window and two reasoning modes—GLM-5.2 (max) for peak capability and GLM-5.2 (high) for a performance/token-efficiency tradeoff—and its weights are released under the MIT license while API pricing remains the same as GLM-5.1.
Source evidence

Introducing GLM-5.2: Frontier Intelligence, Open Weights

  • Significant improvements in coding and agentic tasks
  • Strong long-horizon capabilities with a 1M context window
  • Two levels of reasoning effort: GLM-5.2 (max) pushes the limits, while GLM-5.2 (high) strikes a strong balance between performance and token efficiency
  • MIT-licensed open weights
  • Same API pricing as GLM-5.1

Tech Blog: z.ai/blog/glm-5.2
Weights: huggingface.co/zai-org/GLM-5…
API: docs.z.ai/guides/llm/glm-5.2
Coding Plan: z.ai/subscribe
Chat: chat.z.ai