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New Open Model Beats GPT 5.5 Pro at 1/6th of Cost

Summary by Pro Pakistani
Chinese AI company Z.ai has released GLM-5.2, a 753-billion-parameter open-weight model designed for autonomous coding and long-running engineering tasks. The model supports a stable one-million-token context window and is available through Hugging Face, Z.ai’s API and more than 20 third-party coding tools. Z.ai has released the model weights under the MIT licence, allowing companies to download, modify, fine-tune and deploy the model on their o…
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The GLM-5.2 model has stormed to the top of the rankings of the most advanced AI models. The Chinese solution achieves results comparable to the Fable 5 model, the commercial version of the Mythos model.

The Chinese startup Zhipu AI (Z.ai) has launched GLM-5.2, an artificial intelligence model that equals the programming tasks of the GPT-5.5 giants of OpenAI and Claude Fable 5 of Anthropic, but at a cost up to twenty times lower. The emergence of this open model threatens to alter the competitive AI board and to push the margins of the great western technologies. In this essay we analyze how a Chinese development can trigger a price war that ben…

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Merca2.es broke the news on Saturday, June 20, 2026.
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