Zhipu AI Announces GLM-5.2 Open-Source Release, Available to All GLM Coding Plan Users
Zhipu AI will roll out GLM-5.2 to all GLM Coding Plan users tonight, with API access and full open-source release under MIT license next week, featuring 1M context and top-tier performance.
Zhipu AI today announced that its latest model, GLM-5.2, will be made available to all GLM Coding Plan users starting at 5:21 PM (Beijing time) on June 13. The rollout covers all tiers—Lite, Pro, Max, and Team editions—giving developers immediate access to what the company describes as its most powerful open-source model to date.
According to Zhipu, GLM-5.2 supports a true 1M-token context window and continues to lead in long-range tasks. The company confirmed that the GLM-5.2 API will go live next week, and the model itself will be formally open-sourced under the MIT license at the same time.
This marks the latest step in Zhipu’s rapid iteration cycle. The company released GLM-5.1 in March 2025, followed by a high-speed version in May that achieves 400 tokens per second output. With GLM-5.2, Zhipu is doubling down on its commitment to open, accessible frontier intelligence.
“At a time when some frontier models suddenly become unavailable, Zhipu chooses to believe in another path,” the company stated. “Frontier intelligence should not belong only to a few, nor should it be revoked at any moment by a few rules. It should be open, available, buildable, and serve every developer.”
The announcement underscores Zhipu’s strategic bet on openness as a differentiator in the increasingly competitive AI landscape.