License and attribution
The upstream Qwen3-ASR model is released under the Apache License 2.0. Please retain the upstream attribution and comply with the Apache-2.0 terms when using or redistributing this derivative model. Musci-ASR-2B is an unofficial fine-tuned model and is not an official Qwen release.
Training data disclosure
This checkpoint is fine-tuned from Qwen3-ASR-1.7B-HF with GRPO on an internal mixture built from the public Open ASR Leaderboard training prompts and curated hard-case speech examples. The released checkpoint is an unofficial research fine-tune; the benchmark test sets are not used for optimization.