GLM-5.3-Flash-BF16

Checkpointzai-org/GLM-5.3-Flash-BF16Model card indexedModel card

Support summary

GLM-5.3-Flash-BF16 is a checkpoint published by Z.ai, built on the Glm5NextForConditionalGeneration architecture. Official recipes or cookbooks cover vLLM, without pinning a stable release.

Documented quantization
BF16
Configured context
1,048,576 tokens
License
mit

Hardware, quantization and features count only statements about this checkpoint; engine-wide capabilities are listed with each release.

Hugging Face model card
Publisher
Z.ai
Task
image text to text
License
mit
Library
transformers
Architecture
Glm5NextForConditionalGeneration
Weight tensor elements
321.3B
Tensor types
F32, BF16
Configured context
1,048,576 tokens
Languages
en, zh
Weight access
Public
Repository created
2026-08-25
Source 1: zai-org/GLM-5.3-Flash-BF16 · publisher model cardSource 2: zai-org/GLM-5.3-Flash-BF16 · Hugging Face metadataSource 3: zai-org/GLM-5.3-Flash-BF16 · publisher configurationReviewed

Publisher deployment guidance

Model notes and sources

Engine support

3 engines

Engine support for GLM-5.3-Flash-BF16
EngineReleaseCheckpoint supportEvidence scopeLast known supported
vLLMVersion not pinnedRecipe / cookbookDocumented recipe

Official recipe

Source: vllm · models/zai-org/GLM-5.3-Flash.yamlReviewed
No supported release indexed
Features, dependencies and evidence for vLLM 0.28.0
SGLang0.5.19Newest indexedNo matching evidence curatedNo supported release indexed
Features, dependencies and evidence for SGLang 0.5.19
TensorRT-LLM1.2.1Newest indexedNo matching evidence curatedNo supported release indexed
Features, dependencies and evidence for TensorRT-LLM 1.2.1

Recipes and cookbooks