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Alibaba (Tongyi Lab / FunAudioLLM)FunAudioLLM familyCurrentSpeech and audioReleased 11 Dec 2025

Fun-CosyVoice3 0.5B (2512) + Fun-ASR-Nano + Fun-Audio-Chat-8B

Alibaba Tongyi’s open (Apache-2.0) speech stack from December 2025: TTS, ASR and a speech-chat LLM that you can run locally.

Model idFunAudioLLM/Fun-CosyVoice3-0.5B-2512

PricePrice not published

Checked29 September 2026

Where it stands

74newer speech and audio models since its release

The 5 newest are listed. All speech and audio models

Weights
Weights are public under a permissive licence (Apache-2.0).

How to call it

4 ways to use Fun-CosyVoice3 0.5B (2512) + Fun-ASR-Nano + Fun-Audio-Chat-8B, with the model id each provider expects.

Providers, model ids, endpoints and docs for Fun-CosyVoice3 0.5B (2512) + Fun-ASR-Nano + Fun-Audio-Chat-8B
ProviderModel idEndpointDocs
Hugging Face FunAudioLLM/Fun-CosyVoice3-0.5B-2512 huggingface.co
Hugging Face (ASR, 800M) FunAudioLLM/Fun-ASR-Nano-2512 huggingface.co
Hugging Face (speech chat, 8B) FunAudioLLM/Fun-Audio-Chat-8B huggingface.co
GitHub github.com

Pricing

Price not published.

No price source linked. Checked 29 September 2026.

Specs

Input
Text and audio
Output
Audio
Context window
Not published
Max output
Not published
Open weights
Yes
Licence
Apache-2.0
Released
11 December 2025
Status
Current
Type
Speech and audio

What stands out

What its maker marketed at launch, and what people found later, each with its source.

  • Small open multilingual zero-shot TTS

    0.5B model with 9 languages (zh, en, ja, ko, de, es, fr, it, ru) and 18+ Chinese dialects/accents; RL variant reports 0.81% CER / 77.4% speaker similarity (zh) and 1.68% WER / 69.5% similarity (en) on its eval set.

    Source: huggingface.co

  • Compact far-field ASR (Fun-ASR-Nano, 800M)

    zh/en/ja plus 7 Chinese dialect groups and 26 accents; WER 1.80% AIShell1, 1.76% LibriSpeech-clean; tuned for noisy far-field audio and lyrics over music. MLT-Nano variant covers 31 languages.

    Source: huggingface.co

  • Open 8B speech chat model with function calling (Fun-Audio-Chat)

    Half-duplex speech-to-speech/speech-to-text LLM (zh/en) with dual-resolution speech representations (5 Hz backbone + 25 Hz head, about 50% less compute); spoken QA, speech function calling, voice empathy.

    Source: arxiv.org

Notes

HF repo creation dates: CosyVoice3-0.5B-2512 2025-12-11, Fun-ASR-Nano-2512 2025-12-15, Fun-Audio-Chat-8B 2025-12-23. CosyVoice3-0.5B had ~197k downloads in the month to 2026-09-29, one of the most-used open TTS checkpoints. Papers: CosyVoice 3 arXiv 2505.17589, FunAudio-ASR arXiv 2509.12508, Fun-Audio-Chat arXiv 2512.20156. GitHub repo moved from FunAudioLLM/CosyVoice to QwenAudio/CosyVoice. The same Tongyi group’s hosted successors are the Qwen-Audio 3.x API models.

Sources: https://huggingface.co/FunAudioLLM/Fun-CosyVoice3-0.5B-2512 · https://huggingface.co/FunAudioLLM/Fun-ASR-Nano-2512 · https://huggingface.co/FunAudioLLM/Fun-Audio-Chat-8B · https://arxiv.org/abs/2505.17589