cstr/cosyvoice3-0.5b-2512-GGUF

text-to-speech model by cstr

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GGUF conversion of FunAudioLLM/Fun-CosyVoice3-0.5B-2512 for use with CrispASR (--backend cosyvoice3-tts). CosyVoice3 is a streaming, multilingual, zero-shot voice-cloning TTS system from Alibaba's FunAudioLLM team. The 0.5B-2512 release is Apache-2.0 licensed and supports 9 languages plus 18 Chinese dialects. Output is 24 kHz mono. The model is a three-stage pipeline: Upstream ships two talker checkpoints in one repo: llm.pt (pre-trained) and llm.rl.pt (the same architecture after reinforcement learning, tuned by the authors for speech quality, pronunciation accuracy and generation stability). Only the talker differs — flow, HiFT, CAMPPlus, the speech tokenizer and the voice bank are shared, so switching is just pointing -m at the other LLM GGUF and leaving every companion file in place: CrispASR also ships --backend cosyvoice3-tts-rl (aliases cosyvoice3-rl, cv3-rl): the same engine, wired so that -m auto fetches the RL talker and reuses the shared companions. Both talkers are published here; keep whichever you prefer and delete the…

cstr/cosyvoice3-0.5b-2512-GGUF on Hugging Face A short preview, not the full document.

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Inside the original model card — Document outline
  1. Fun-CosyVoice3-0.5B-2512 — GGUF
  2. Files
  3. Base vs RL talker
  4. Quant validation (ASR roundtrip on smoke prompt)
  5. Usage
  6. CrispASR (recommended)
  7. Voices
  8. Arbitrary-WAV cloning (native, no Python pre-bake)
  9. Tensor naming
  10. License
  11. Related links

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Documentation belongs to its respective authors. Reported project/model license: apache-2.0. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.

Model overview

cstr/cosyvoice3-0.5b-2512-GGUF is a text-to-speech model repository published by cstr on Hugging Face. A library was not reported.

This page summarizes Hub metadata. For intended use, training data, evaluation results and limitations, consult the original model card.

Model facts

Task
text-to-speech
Library
Not reported
Recent downloads (30 days)
12,959
Cumulative likes
15
Hugging Face trending score
1
Reported safetensors parameters
Not reported
Architecture
Not reported
License
apache-2.0
Access
Not gated by Hugging Face
Created
2026-05-28T09:44:14.000Z
Last modified
2026-08-05T17:46:04.000Z

Compatibility and lineage

Reported languages: zh, en, ja, ko, yue, fr, de, es, pt, it, ru

Reported base models: FunAudioLLM/Fun-CosyVoice3-0.5B-2512

Parameter count is not a RAM/VRAM requirement. Check precision, quantization, context length and runtime compatibility in the model card; no hardware or API-cost claim is inferred here.

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Model card and usage instructions

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Source: Hugging Face Hub. Metadata observed 2026-10-21T06:46:13.433Z. Daily imports are snapshots, not real-time monitoring.

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