GLM-4 is an open weights large language model designed as a multimodal chat system. It functions as a reasoning-focused and multilingual model capable of processing and generating responses across text and visual data types.
The model is distinguished by its function-calling capabilities, allowing it to interface with external tools and APIs to execute tasks and retrieve real-time information. It is optimized for complex logical reasoning, mathematical problem solving, and deep research involving long-form content generation.
Broad capabilities include multilingual text generation, the creation of programming code and user interface layouts, and the ability to undergo domain-specific weight fine-tuning. The system also supports expanded context windows for processing extensive inputs and outputs.