GLM-5.2
#35 in Open-Source LLMsZhipu Glm · v5.2 · 3× · last seen Jul 20, 2026
29
Momentum
GLM-5.2 is an Open-Weight language model developed by Zhipu AI (Z.ai), designed as a "Mixture-of-Experts" architecture with 744 billion total and 40 billion active parameters. It was initially released on June 13, 2026 for GLM Coding Plan subscribers, with full MIT-licensed model weights following on June 16, 2026. The model specializes in coding and long-running agent tasks, supports a context window of 1 million Token, and is currently ranked as the most powerful openly available language model according to the Artificial Analysis Intelligence Index. It is text-based (not a native multimodal model); image and video understanding is covered through separate Z.ai models from the GLM-V series.
Momentum trend
22.04.21.07.
Features
| Key Benchmark (%) | Artificial Analysis Intelligence Index: 51 (leading open model); Terminal-Bench 2.1: 81.0%; SWE-bench Pro: 62.1% |
| Context Window (Tokens) | 1,048,576 tokens (1M), max output 131,072 tokens |
| License | MIT License, open weights with no regional restrictions |
| Multimodality | No – text-only model (text input/output); image/video understanding handled by Z.ai's separate GLM-V models |
| Platform | Available via Hugging Face (model weights), Z.ai API platform, GLM Coding Plan, and third-party providers like OpenRouter, Ollama, Unsloth/llama.cpp |
| Price per 1M Tokens | $1.40 input / $4.40 output (Z.ai API); $0.26 for cached input tokens |
| Release Date | June 13, 2026 (Coding Plan preview); full open-weight release June 16, 2026 |