Chinese AI firm Z.ai, formerly known as Zhipu, has launched GLM-4.5, an open-source language model designed for intelligent agent applications, as competition heats up among China’s fast-growing generative AI startups.
GLM-4.5 will be available in two versions, with the flagship model featuring 355 billion parameters and a lighter variant, GLM-4.5-Air, running on 106 billion parameters.
“Its performance in reasoning, coding, and agentic capabilities has been evaluated on 12 representative benchmarks,” the company said in a statement. “Based on the average score across all these benchmarks, GLM-4.5 has secured third place globally and the first place among both domestic and open-source models.”
The company said GLM-4.5 is its first foundation model with an “agent-native” architecture, meaning core functions such as reasoning, perception, and action are built directly into the model. This design allows it to autonomously execute multi-step tasks, create complex data visualizations, and manage complete workflows.
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