GLM-5.3-BF16

Facts

Released

2026-08-25 the day the repository was first published on Hugging Face Hugging Face, read 2026-09-24

Licence

other the licence the model card declares Hugging Face, read 2026-09-24

Open weights

Yes the weights are published in this Hugging Face repository Hugging Face, read 2026-09-24

Parameters

753.3 billion counted from the safetensors weight files Hugging Face, read 2026-09-24

Active parameters

51.2 billion estimate estimated from the expert counts and sizes in the configuration model configuration, read 2026-09-24

Knowledge cutoff

Unknown

Context window

• 1,048,576 tokens the maximum position embeddings in the model configuration model configuration, read 2026-09-24

Longest output

Unknown

Tool calling

Unknown

Structured output

Unknown

Reasoning controls

Unknown

Inputs and outputs

text in, text out Hugging Face, read 2026-09-24

Good for

No source names a use.

Prices

No source lists a price for this model. It may only run on your own hardware.

Run it on your own hardware

Weights are the sizes of the files a source lists, or an estimate from the parameter count where none does. Memory is an estimate: weights plus KV cache plus 512 MiB and 5 percent of the weights for runtime buffers. Check it against your hardware.

Start it with a local runtime

• vLLM

  vllm serve zai-org/GLM-5.3-BF16

• SGLang

  sglang serve --model-path zai-org/GLM-5.3-BF16 --port 30000

Use it from your harness

No endpoint in this directory serves this model yet.

Published results

These are results other people published. Baltor did not run them and does not rank models by them.

• Results the maker published on the model card published by zai-org Hugging Face, read 2026-09-24