Zhipu AI GLM-5.2: 1M Token Context, Open-Source Power

Zhipu AI has launched its new language model, GLM-5.2. This model is designed for long agent tasks and programming. What's interesting is that GLM-5.2 features a context window of 1 million tokens. It's an open-source solution with an MIT license and supports local deployment. The model can generate text in both English and Chinese and has 753 billion parameters. Developers say GLM-5.2 supports different levels of "reasoning intensity," letting users balance quality and latency. Its architecture includes IndexShare and an updated MTP layer for speculative decoding. IndexShare reuses a single indexer for every four layers of sparse attention, reducing operations per token by 2.9 times. The MTP update increases confirmation length by up to 20%. GLM-5.2 outperformed other open-source models in three key benchmarks: FrontierSWE, PostTrainBench, and SWE-Marathon. It also emerged as the most powerful open-source model in standard programming performance tests. The model supports local deployment with various tools and quantization is available. The bottom line: This new open-source model offers advanced capabilities for developers and programmers.