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Qwen3-4B

Qwen3-4B is an AI model made by Alibaba Tongyi. Alibaba Tongyi released it on 29 April 2025. It is generally available. It takes text and returns text.

Alibaba Tongyi

Qwen3-4B is an AI model made by Alibaba Tongyi. Alibaba Tongyi released it on 29 April 2025. It is generally available. It takes text and returns text. Its context window is 32,768 tokens. Its weights are open.

Released
29 April 2025 — qwenlm.github.io, read 16 October 2026
Status
Generally available — huggingface.co, read 16 October 2026
Takes
Text — huggingface.co, read 16 October 2026
Returns
Text — huggingface.co, read 16 October 2026
Open weights
Yes — qwenlm.github.io, read 16 October 2026
Licence
Not confirmed: two readings disagree: Apache 2.0 and apache-2.0
Context window
32,768 tokens — huggingface.co, read 16 October 2026
Longest answer
Not confirmed: The model card shows a generation example with a max_new_tokens setting, but does not state that setting as the model's standard maximum output limit.
Knowledge cutoff
Not confirmed: The maker's model card and release announcement do not print a knowledge-cutoff date for Qwen3-4B.
API price, input
Not confirmed: The maker's live standard pricing page does not list an input price for the exact model Qwen3-4B.
API price, output
Not confirmed: The maker's live standard pricing page does not list an output price for the exact model Qwen3-4B.
Where
Downloadable weights — qwenlm.github.io, read 16 October 2026
Parameters
Not confirmed: the figure is not printed in its sentence (a sum or a figure the page does not give)
Model card
https://huggingface.co/Qwen/Qwen3-4B — huggingface.co, read 16 October 2026

Benchmarks

Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.

Epoch AI

Epoch AI, ‘Capabilities & benchmarking’, epoch.ai/benchmarks, CC BY 4.0: Epoch AI’s own runs and its Capabilities Index. Data · CC BY 4.0

Questions

When was Qwen3-4B released?

Alibaba Tongyi released Qwen3-4B on 29 April 2025.

Is Qwen3-4B still available?

Yes: it is generally available, as Alibaba Tongyi states it.

What is the context window of Qwen3-4B?

The context window of Qwen3-4B is 32,768 tokens, as Alibaba Tongyi prints it.

Are the weights of Qwen3-4B open?

Yes: Alibaba Tongyi publishes the weights of Qwen3-4B for download.

What does Qwen3-4B take and return?

Qwen3-4B takes text and returns text.

More from Alibaba Tongyi

Sources

  1. Qwen3: Think Deeper, Act Faster (read 16 October 2026)
  2. Qwen3 (read 16 October 2026)
  3. Qwen/Qwen3-4B (read 16 October 2026)
  4. Alibaba Cloud Model Studio model pricing (read 16 October 2026)

All of the Model Tracker