Speech & Audio AI

Qwen3-ASR Technical Report

XXian ShiXXiong WangZZhifang GuoYYongqi WangPPei ZhangXXinyu ZhangZZishan GuoHHongkun HaoYYu XiBBaosong YangJJin XuJJingren ZhouJJunyang Lin
Published
January 29, 2026
Authors
13
Word Count
8,807

Qwen3-ASR: versatile, multilingual, robust speech recognition.

Abstract

In this report, we introduce Qwen3-ASR family, which includes two powerful all-in-one speech recognition models and a novel non-autoregressive speech forced alignment model. Qwen3-ASR-1.7B and Qwen3-ASR-0.6B are ASR models that support language identification and ASR for 52 languages and dialects. Both of them leverage large-scale speech training data and the strong audio understanding ability of their foundation model Qwen3-Omni. We conduct comprehensive internal evaluation besides the open-sourced benchmarks as ASR models might differ little on open-sourced benchmark scores but exhibit significant quality differences in real-world scenarios. The experiments reveal that the 1.7B version achieves SOTA performance among open-sourced ASR models and is competitive with the strongest proprietary APIs while the 0.6B version offers the best accuracy-efficiency trade-off. Qwen3-ASR-0.6B can achieve an average TTFT as low as 92ms and transcribe 2000 seconds speech in 1 second at a concurrency of 128. Qwen3-ForcedAligner-0.6B is an LLM based NAR timestamp predictor that is able to align text-speech pairs in 11 languages. Timestamp accuracy experiments show that the proposed model outperforms the three strongest force alignment models and takes more advantages in efficiency and versatility. To further accelerate the community research of ASR and audio understanding, we release these models under the Apache 2.0 license.

Key Takeaways

  • 1

    Qwen3-ASR achieves state-of-the-art performance on benchmarks.

  • 2

    Supports 30 languages and 22 Chinese dialects.

  • 3

    Robust against accents, dialects, and noisy environments.

Limitations

  • Requires large-scale pretraining data and computational resources.

  • Real-world deployment may introduce new challenges.

Keywords

speech recognition modelslanguage identificationnon-autoregressive modelsforced alignmenttimestamp predictionaudio understandinglarge-scale speech training datafoundation modelTTFTconcurrency

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