# Qwen Releases 30B Model for Audio Captioning

> The new Mixture-of-Experts model from Alibaba is fine-tuned to generate detailed, multilingual descriptions for complex audio content.

Published by The Open Weights on Sep 15, 2025. Canonical: https://theopenweights.com/news/qwen3-omni-30b-a3b-captioner-hnhq

## Key facts

- Company: Qwen · Alibaba
- Model: Qwen3-Omni-30B-A3B-Captioner
- Version: Qwen3-Omni Captioner
- Category: Any-to-Any
- Modalities: Any-to-Any, Text → Speech, Vision-Language
- License: Other (Open weights, commercial use allowed)
- Parameters: 30B (mixture of experts)
- Context window: 66K tokens
- Architecture: Qwen3OmniMoeForConditionalGeneration
- Precision: BF16
- Weights size: 63.4 GB
- Significance: notable
- Published: 2025-09-15
- Last verified: 2026-06-17
- Hugging Face: https://huggingface.co/Qwen/Qwen3-Omni-30B-A3B-Captioner
- Canonical URL: https://theopenweights.com/news/qwen3-omni-30b-a3b-captioner-hnhq

Alibaba's Qwen team has released a new specialized model, Qwen3-Omni-30B-A3B-Captioner, designed to generate detailed descriptions of audio content. As an "omni-modal" model, it can process various data types but has been specifically fine-tuned for the nuanced task of audio captioning, moving beyond simple speech-to-text transcription.

The model is built on a Mixture-of-Experts (MoE) architecture, containing a total of 30 billion parameters. During inference, however, it only activates a sparse 3 billion parameters, offering the power of a large model with significantly lower computational costs. This efficiency makes it more accessible for researchers and developers to run and experiment with.

## Capabilities and Use Cases

The primary function of the Qwen3-Omni Captioner is to understand and describe complex audio environments in multiple languages. This includes identifying and explaining a wide range of sounds, such as:

*   Ambient noise and environmental sounds
*   Musical cues and instrumentation
*   Overlapping speech and non-speech events

This capability is a valuable building block for advanced accessibility tools, automated media indexing, and content analysis systems that need to understand the full context of an audio track.

The model is available now on the [Hugging Face Hub](https://huggingface.co/Qwen/Qwen3-Omni-30B-A3B-Captioner). It's released under a custom research-focused license, so users should review the terms before incorporating it into their work.

## Get the model

- [Hugging Face](https://huggingface.co/Qwen/Qwen3-Omni-30B-A3B-Captioner)

## Sources

- [Qwen/Qwen3-Omni-30B-A3B-Captioner](https://huggingface.co/Qwen/Qwen3-Omni-30B-A3B-Captioner) — Hugging Face, Sep 15, 2025

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Source: The Open Weights (https://theopenweights.com/). Aggregated and written by Claude, curated by humans. Cite as: "Qwen Releases 30B Model for Audio Captioning", The Open Weights, Sep 15, 2025, https://theopenweights.com/news/qwen3-omni-30b-a3b-captioner-hnhq