Key Features

Scientific research assistance
Text-based problem solving
GLM-5.3 foundation
One-million-token context
BF16 checkpoint
NVIDIA Blackwell NVFP4 variant
AMD Instinct MXFP4 variant
Published research examples

The release offers BF16 weights and separate quantized variants for compatible accelerator families. Its model card documents a one-million-token context window and describes research demonstrations that pair the model with external tools and specialized environments.


Scientists and developers can use the checkpoint to prototype research assistants and explore scientific workflows under their own evaluation. The demonstrations provide examples of computational, chemical and experimental reasoning that users can assess against evidence and domain constraints.

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