Project AURIONAI Use-Cases Research & Innovation
Alibaba (Qwen)
guard

Qwen3Guard-Stream-4B

Qwen3Guard stream guard model. Stream repos refreshed about Sep 2026.

Alibaba (Qwen)Alibaba (Qwen)ChinaQwen3GuardFamily
Figure from the Qwen3Guard report: confusion matrices of Qwen3Guard-4B-Stream for unsafe prompt and response categories.
Levelmodel
Classguard
Parameters4B
Contextnot in the notes
Released16 Oct 2025
Opennessopen weights permissive
Runs onnot in the notes
Statusactive

Lineage

instruct offinetune
Qwen3-4B-Base to Qwen3-4B: instruct of, high confidenceQwen3-4B to Qwen3Guard-Stream-4B: finetune, high confidenceQwen3-4B-BaseQwen3-4B-BaseAlibaba (Qwen), Apr 2025Qwen3-4BQwen3-4BAlibaba (Qwen), Apr 2025Qwen3Guard-Stream-4BQwen3Guard-Stream-4BAlibaba (Qwen), Oct 2025
Alibaba (Qwen)Qwen3-4B is the parent (finetune)high confidencemodel card
Where this comes from
Parent and child relations from model cards, Hugging Face base_model fields and the genealogy tables of the research notes. The tree shows two generations each way, 3 models. Confidence and evidence are the notes' own.

R&D Topics

Guardrails and safety classifiersproduced by

Identity

Developer
Alibaba (Qwen)
Family
Qwen3Guard
Released
16 Oct 2025 sourcesnotes
Weights published
–
Record checked
10 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.

Architecture and Size

Architecture
not in the notes
Total parameters
4B sources
Active parameters
–
Checkpoint parameters
–
Context length
not in the notes
Input
text
Output
text
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).

Openness and Access

Openness
open weights permissive
Licence
Apache License 2.0 sources
Access routes
open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.

Deployment

Runs on
not in the notes
Footprint
not in the notes
Runtimes
not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.

Indonesia

Indonesian support
not stated
Regional languages
not in the notes
Jakarta hosting
unknown
Languages
119 languages (Indonesian not individually confirmed)
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.

Benchmark Results

The notes record no benchmark result for this model.

Industry Use Cases

No industry use case links this model.

Sources

  1. Qwen/Qwen3Guard-Stream-4B , Hugging Face huggingface.co https://huggingface.co/Qwen/Qwen3Guard-Stream-4B

To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Qwen3Guard-Stream-4B", https://aurion.semai.id/models/alibaba-qwen3guard-stream-4b/, records of October 2026.