funasr 1.3.27

OpenAI-compatible speech recognition toolkit with WebSocket streaming, vLLM acceleration, and llama.cpp/GGUF edge runtime.

(简体中文|English|日本語|한국어)

Industrial speech recognition toolkit for offline, streaming, and edge deployment.
ASR · VAD · punctuation · speaker pipelines · emotion and audio-event models · OpenAI-compatible serving

Quick Start · Colab · Benchmark · Model selection · Migration guide · Use cases · Community integrations · Deployment matrix · Troubleshooting · Models · Agent Integration · Docs · Contribute

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Quick Start

No local setup? Open the Colab quickstart to transcribe a public sample or upload your own audio in a browser.

# CPU-only installs can use the default PyPI wheels.
pip install torch torchaudio
pip install funasr

For GPU quickstarts, install the PyTorch and torchaudio wheels that match your NVIDIA driver from pytorch.org before installing FunASR. After installation, confirm the GPU is visible:

python - <<'PY'
import torch
print(torch.cuda.is_available())
PY

Only use device="cuda" when this prints True; otherwise use device="cpu" or reinstall PyTorch with the correct CUDA wheel.

Flagship model — Fun-ASR-Nano (LLM-ASR for Chinese, English, and Japanese, plus Chinese dialect groups and regional accents; needs a GPU):

from funasr import AutoModel

model = AutoModel(model="FunAudioLLM/Fun-ASR-Nano-2512", device="cuda")
result = model.generate(input="https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav")
print(result[0]["text"])
# 欢迎大家来体验达摩院推出的语音识别模型。

For the separate 31-language checkpoint, use Fun-ASR-MLT-Nano-2512. Language coverage is checkpoint-specific, so Nano and MLT-Nano should be treated as distinct model choices.

On CPU (or for five-language ASR plus emotion and audio-event tags), use SenseVoiceSmall. The pipeline below composes SenseVoiceSmall with FSMN-VAD and CAM++; diarization is provided by the separate CAM++ model, not by the SenseVoiceSmall checkpoint: See the SenseVoice paper, Hugging Face checkpoint, and GGUF edge checkpoint.

from funasr import AutoModel
from funasr.utils.postprocess_utils import rich_transcription_postprocess

model = AutoModel(model="iic/SenseVoiceSmall", vad_model="fsmn-vad", spk_model="cam++", device="cuda")  # use device="cpu" if you don't have a GPU
result = model.generate(
    input="https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav",
    batch_size_s=300,
)

# The AutoModel pipeline returns VAD segments with speaker ids and timestamps:
for seg in result[0]["sentence_info"]:
    print(f"[{seg['start']/1000:.1f}s] Speaker {seg['spk']}: {rich_transcription_postprocess(seg['sentence'])}")

Output — structured text with speaker labels, timestamps, and punctuation:

[0.6s] Speaker 0: 欢迎大家来体验达摩院推出的语音识别模型

One AutoModel pipeline call coordinates the configured ASR, VAD, and speaker models and returns the combined result.

Scale & deploy the flagship

At scale, accelerate Fun-ASR-Nano with vLLM (batch processing):

from funasr.auto.auto_model_vllm import AutoModelVLLM

model = AutoModelVLLM(model="FunAudioLLM/Fun-ASR-Nano-2512", tensor_parallel_size=1)
results = model.generate(["audio1.wav", "audio2.wav"], language="auto")

Deploy as API server: funasr-server --device cuda → OpenAI-compatible endpoint at localhost:8000

Use with AI agents: MCP Server for Claude/Cursor · OpenAI API for LangChain/Dify/AutoGen

Why FunASR?

Whisper is a single model; FunASR is a toolkit — you pick the right model per job: Fun-ASR-Nano (Chinese, English, Japanese, and Chinese dialects; GPU), Fun-ASR-MLT-Nano (31 languages), SenseVoiceSmall (five-language ASR plus emotion and audio events), and Paraformer (low-latency streaming). The table shows toolkit-level capabilities and names the model or pipeline that provides each one:

	FunASR (toolkit)	Whisper	Cloud APIs
Top speed	340x realtime (Fun-ASR-Nano + vLLM)	13x realtime	~1x realtime
Speaker ID	✅ via VAD + CAM++ pipeline	❌ Needs pyannote	✅ Extra cost
Emotion	✅ via SenseVoice	❌	❌
Languages	Checkpoint-specific (for example Qwen3-ASR 52, MLT-Nano 31, Nano zh/en/ja)	57	Varies
Streaming	✅ WebSocket (Paraformer)	❌	✅
CPU viable	✅ 17x realtime (SenseVoice)	❌ Too slow	N/A
Self-hosted	✅ Yes (toolkit: MIT; model licenses vary)	✅ MIT license	❌ Cloud only
Cost	Free	Free	$0.006/min+

Trying FunASR for the first time? Use the Colab quickstart before setting up a local environment. Choosing a first model? Start with the model selection guide. Planning a switch from Whisper or a cloud ASR provider? Use the migration guide and benchmark example to test representative audio, map features, and roll out safely.

---

Installation

pip install funasr

From source / Requirements

git clone https://github.com/modelscope/FunASR.git && cd FunASR
pip install -e ./

Requirements: Python ≥ 3.8. Install PyTorch + torchaudio first (pytorch.org), then pip install funasr.

---

Model Zoo

Model	Task	Languages	Params	Links
Fun-ASR-Nano	ASR	zh/en/ja + Chinese dialects and accents	800M	⭐ 🤗 GGUF
Fun-ASR-MLT-Nano	ASR	31 languages	800M	⭐ 🤗
SenseVoiceSmall	ASR + emotion + events	zh/en/ja/ko/yue	234M	⭐ 🤗 GGUF paper
Paraformer-zh	ASR + timestamps	zh/en	220M	⭐ 🤗
Paraformer-zh-streaming	Streaming ASR	zh/en	220M	⭐ 🤗
Qwen3-ASR	ASR, 52 languages	multilingual	1.7B	usage
GLM-ASR-Nano	ASR, 17 languages	multilingual	1.5B	usage
Whisper-large-v3	ASR + translation	multilingual	1550M	usage
Whisper-large-v3-turbo	ASR + translation	multilingual	809M	usage
ct-punc	Punctuation	zh/en	290M	⭐ 🤗
fsmn-vad	VAD	zh/en	0.4M	⭐ 🤗
cam++	Speaker diarization	—	7.2M	⭐ 🤗
emotion2vec+large	Emotion recognition	—	300M	⭐ 🤗

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Usage

Full examples with parameter docs: Tutorial →

from funasr import AutoModel

# Chinese production (VAD + ASR + punctuation + speaker)
model = AutoModel(model="paraformer-zh", vad_model="fsmn-vad", punc_model="ct-punc", spk_model="cam++", device="cuda")
result = model.generate(input="https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/asr_example_zh.wav", hotword="关键词 20")


# Streaming real-time (feed audio chunk by chunk)
import soundfile as sf
model = AutoModel(model="paraformer-zh-streaming", device="cuda")
audio, sr = sf.read("speech.wav", dtype="float32")   # 16 kHz mono
chunk_size = [0, 10, 5]                               # 600 ms chunks
chunk_stride = chunk_size[1] * 960
cache = {}
n_chunks = (len(audio) - 1) // chunk_stride + 1
for i in range(n_chunks):
    chunk = audio[i * chunk_stride : (i + 1) * chunk_stride]
    res = model.generate(input=chunk, cache=cache, is_final=(i == n_chunks - 1),
                         chunk_size=chunk_size, encoder_chunk_look_back=4, decoder_chunk_look_back=1)
    if res[0]["text"]:
        print(res[0]["text"], end="", flush=True)

# Emotion recognition
model = AutoModel(model="emotion2vec_plus_large", device="cuda")
result = model.generate(input="audio.wav", granularity="utterance")

CLI (Agent-Friendly)

# Transcribe audio (simplest)
funasr audio.wav

# JSON output (for AI agents)
funasr audio.wav --output-format json

# SRT subtitles
funasr audio.wav --output-format srt --output-dir ./subs

# Speaker diarization + timestamps
funasr audio.wav --spk --timestamps -f json

# Choose model and language
funasr audio.wav --model paraformer --language zh

# Batch transcribe
funasr *.wav --output-format srt --output-dir ./output

Available models: sensevoice (default), paraformer, paraformer-en, fun-asr-nano

---

Deploy

# OpenAI-compatible API (recommended)
pip install torch torchaudio
pip install funasr vllm fastapi uvicorn python-multipart
funasr-server --device cuda
# → POST /v1/audio/transcriptions at localhost:8000

Verify it with a public sample:

curl -L https://isv-data.oss-cn-hangzhou.aliyuncs.com/ics/MaaS/ASR/test_audio/BAC009S0764W0121.wav -o sample.wav
curl http://localhost:8000/v1/audio/transcriptions \
  -F file=@sample.wav \
  -F model=sensevoice \
  -F response_format=verbose_json

# Docker streaming service
docker pull registry.cn-hangzhou.aliyuncs.com/funasr_repo/funasr:funasr-runtime-sdk-online-cpu-0.1.12

CPU / Edge — llama.cpp / GGUF (no GPU, no Python)

Run SenseVoice / Paraformer / Fun-ASR-Nano as a single self-contained binary on CPU and edge devices — this is to FunASR what whisper.cpp is to Whisper, but with ~3× lower CER than whisper.cpp on Chinese. Built-in FSMN-VAD, no Python at runtime.

# Linux / macOS: run from the extracted release directory
bash download-funasr-model.sh sensevoice ./gguf        # or: paraformer | nano
./llama-funasr-sensevoice -m ./gguf/sensevoice-small-q8.gguf --vad ./gguf/fsmn-vad.gguf -a audio.wav
# → 欢迎大家来体验达摩院推出的语音识别模型

# Windows PowerShell: run from the extracted archive root (with the `hf` CLI installed)
hf download FunAudioLLM/SenseVoiceSmall-GGUF sensevoice-small-q8.gguf --local-dir .\gguf
hf download FunAudioLLM/fsmn-vad-GGUF fsmn-vad.gguf --local-dir .\gguf
.\llama-funasr-sensevoice.exe -m .\gguf\sensevoice-small-q8.gguf --vad .\gguf\fsmn-vad.gguf -a audio.wav
# Use the windows-x64-vulkan package with a current AMD, Intel, or NVIDIA Vulkan driver:
.\llama-funasr-sensevoice.exe -m .\gguf\sensevoice-small-q8.gguf --vad .\gguf\fsmn-vad.gguf -a audio.wav --backend vulkan
# Use the windows-x64-cuda package on RTX 30-class GPUs:
.\llama-funasr-sensevoice.exe -m .\gguf\sensevoice-small-q8.gguf --vad .\gguf\fsmn-vad.gguf -a audio.wav --backend cuda

Use funasr-llamacpp-linux-x64-vulkan.tar.gz on Linux GPU systems with a working Vulkan driver/ICD:

./llama-funasr-sensevoice -m ./gguf/sensevoice-small-q8.gguf --vad ./gguf/fsmn-vad.gguf -a audio.wav --backend vulkan

The Windows Vulkan ZIP uses the system Vulkan loader supplied by the GPU driver; installing the Vulkan SDK is only necessary when building from source. Both Vulkan packages currently accelerate SenseVoiceSmall.

The current Windows CUDA package targets CUDA architecture 86. RTX 50 / Blackwell GPUs report compute capability 12.0 (sm_120) and should use the CPU package or build from source with -DCMAKE_CUDA_ARCHITECTURES=120 until a dedicated CUDA asset is published.

Prebuilt binaries: Releases · v0.1.9 · Linux Vulkan tarball · Windows Vulkan zip · Windows CUDA zip · Download & quickstart: funasr.com/llama-cpp · GGUF models: Hugging Face · Docs & benchmarks: runtime/llama.cpp/

OpenAI API example → · Gradio demo → · Client recipes → · JavaScript/TypeScript recipes → · Kubernetes template → · Workflow recipes → · Postman collection → · OpenAPI spec → · Security guide → · Deployment matrix → · Deployment docs → · Agent integration →

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Benchmark

184 long-form audio files (192 min). Full report → · RTFx and reproducibility notes →

Model	Chinese CER ↓	GPU Speed	CPU Speed	vs Whisper-large-v3
Fun-ASR-Nano (vLLM)	8.20%	340x realtime	—	🚀 26x faster
SenseVoice-Small	7.81%	170x realtime	17x realtime	🚀 13x faster
Paraformer-Large	10.18%	120x realtime	15x realtime	🚀 9x faster
Whisper-large-v3-turbo	21.71%	46x realtime	❌	3.4x faster
Whisper-large-v3	20.02%	13x realtime	❌	baseline

Key takeaway: FunASR models run on CPU faster than Whisper runs on GPU.

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What's new

• 2026/07/24: v1.3.27 on PyPI — the OpenAI-compatible server now reports detected SenseVoice language metadata in verbose_json and reuses the cached Fun-ASR-Nano AutoModel after vLLM fallback. When vLLM/VAD setup and its fallback both fail, half-initialized engine state is cleared so a later request can retry. Install with python -m pip install -U "funasr==1.3.27". Release ->
• 2026/07/23: llama.cpp runtime v0.1.9 — adds funasr-llamacpp-windows-x64-vulkan.zip for standalone SenseVoiceSmall Vulkan inference on Windows with AMD, Intel, or NVIDIA drivers. Linux Vulkan, Windows CUDA, CPU/AVX2, Linux arm64, and macOS arm64 assets remain available. Release ->
• 2026/07/23: v1.3.26 on PyPI — funasr-server --model fun-asr-nano --hub ms now honors the requested ModelScope hub for the default Fun-ASR-Nano model in both the vLLM path and the AutoModel fallback, avoiding unintended Hugging Face downloads when users choose ModelScope. Install with python -m pip install -U "funasr==1.3.26". Release ->
• 2026/07/23: v1.3.25 on PyPI — realtime WebSocket users can now use deterministic final-text hotword corrections with POSTPROCESS_HOTWORDS:wrong=>right or --postprocess-hotword-file, keeping fixed-name cleanup separate from model-level HOTWORDS: decoding bias. The source-tree realtime entrypoint also works without preinstalling the package. Install with python -m pip install -U "funasr==1.3.25". Release ->
• 2026/07/23: v1.3.24 on PyPI — OpenAI-compatible server deployments now support custom model paths and hub selection, the llama.cpp/GGUF runtime docs include the HTTP transcription wrapper and Linux Vulkan package, and public docs links were refreshed for cleaner onboarding. Install with python -m pip install -U "funasr==1.3.24". Release ->
• 2026/07/22: v1.3.23 on PyPI — packaging and onboarding refresh for this week's community integrations: the PyPI long description now highlights the current OpenAI-compatible server path, llama.cpp/GGUF runtime notes, Windows CUDA architecture guidance, and browser quickstart links shipped in the repository docs. Runtime code is unchanged from v1.3.22. Install with python -m pip install -U "funasr==1.3.23". Release ->
• 2026/07/22: llama.cpp runtime v0.1.8 — adds funasr-llamacpp-linux-x64-vulkan.tar.gz for SenseVoiceSmall on Linux Vulkan GPUs. Run llama-funasr-sensevoice ... --backend vulkan; CPU, AVX2, macOS arm64, Windows CPU/AVX2, and Windows CUDA packages remain available. Release ->
• 2026/07/19: v1.3.22 on PyPI — funasr-server now fills OpenAI-compatible verbose_json.segments for text-only SenseVoice/Paraformer fallback responses, so subtitle clients no longer see an empty segments array when text is populated. Install with python -m pip install -U "funasr==1.3.22". Release ->
• 2026/07/19: v1.3.21 on PyPI — fixes first-import onboarding in fresh environments where users install funasr before choosing a platform-specific PyTorch build. import funasr and funasr.__version__ now work without torch; accessing AutoModel still requires PyTorch and raises a clear install hint. Install with python -m pip install -U "funasr==1.3.21". Release ->
• 2026/07/19: v1.3.20 on PyPI — PyPI metadata and install guidance now point at the current FunASR docs, community integrations, and quoted python -m pip install -U "funasr>=1.3.19" commands for Fun-ASR-Nano deployment paths. This is a documentation/packaging sync; runtime code remains unchanged from v1.3.19. Install with python -m pip install -U "funasr==1.3.20". Release ->
• 2026/07/19: v1.3.19 on PyPI — realtime WebSocket long-session troubleshooting docs are now shipped with the package. Run the server with --enable-spk --log-session-stats-interval 30 and attach the emitted Session stats: lines when reporting disconnects or memory growth. Install with python -m pip install -U "funasr==1.3.19". Long-session guide -> · Release ->
• 2026/07/19: v1.3.18 on PyPI — CLI SRT/TSV subtitle output now requests sentence timestamps and loads punctuation when needed, so funasr audio.wav --output-format srt --output-dir ./subs writes segmented subtitle cues instead of one full-text block. Install with python -m pip install -U "funasr==1.3.18". Release ->
• 2026/07/18: v1.3.16 on PyPI — client-driven realtime endpoints for Fun-ASR-Nano. Start one WebSocket session, stream PCM, and send COMMIT for each utterance without loading server-side VAD; short utterances finalize and timestamps remain monotonic across commits. Install with pip install --upgrade funasr, then run funasr-realtime-server --endpoint-mode client. Guide →
• 2026/07/18: llama.cpp runtime v0.1.7 — prebuilt Windows CUDA package for SenseVoiceSmall (funasr-llamacpp-windows-x64-cuda.zip) plus Linux / macOS / Windows CPU packages. Download the GGUF model, then run llama-funasr-sensevoice ... --backend cuda on supported NVIDIA GPUs. Release →
• 2026/06/20: llama.cpp / GGUF runtime — run SenseVoice / Paraformer / Fun-ASR-Nano on CPU & edge as a single self-contained binary (a whisper.cpp-style alternative), built-in FSMN-VAD, no Python at runtime. Prebuilt binaries for Linux / macOS / Windows + q8 quantized models (~half the size, same accuracy). runtime/llama.cpp/ · Releases
• 2026/06/21: v1.3.12 on PyPI — rolling fixes (qwen3-asr language codes, glm_asr, vLLM repetition_penalty). pip install --upgrade funasr
• 2026/05/24: vLLM Inference Engine — 2-3x faster LLM decoding for Fun-ASR-Nano. Streaming WebSocket service with VAD + Speaker Diarization. Guide → · Realtime WS tuning → · API stability checklist →
• 2026/05/24: Dynamic VAD — adaptive silence threshold (default on). Short sentences stay intact, long segments get auto-split. Details →
• 2026/05/24: v1.3.3 — funasr-server CLI, OpenAI-compatible API, MCP Server for AI agents. pip install --upgrade funasr
• 2026/05/20: Added Qwen3-ASR (0.6B/1.7B) — 52 languages, auto detection. usage
• 2026/05/20: Added GLM-ASR-Nano (1.5B) — 17 languages, dialect support. usage
• 2026/05/19: Fun-ASR-Nano and SenseVoice can be combined with VAD and CAM++ for speaker diarization.
• 2025/12/15: Fun-ASR-Nano-2512 — Chinese, English, Japanese, and Chinese dialect support; trained on tens of millions of hours.

Older

• 2024/10/10: Whisper-large-v3-turbo support added.
• 2024/07/04: SenseVoice — ASR + emotion + audio events.
• 2024/01/30: FunASR 1.0 released.

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Community

📖 Documentation	🐛 Issues
💬 Discussions	🤗 HuggingFace
🤝 Contributing	🌐 funasr.com
🗺️ Repository roles & roadmap	📈 Growth plan
🧩 Community projects	💡 Use-case showcase

Star History

License

• FunASR toolkit source code in this repository: MIT License.
• Pretrained model weights are licensed separately. Check the license shown on each model card; when a model card links to the FunASR Model Open Source License Agreement, those terms apply.

Citations

@inproceedings{gao2023funasr,
  author={Zhifu Gao and others},
  title={FunASR: A Fundamental End-to-End Speech Recognition Toolkit},
  booktitle={INTERSPEECH},
  year={2023}
}