Open weightsWeNet/10 trustVerified

WeNet

Name: WeNet
Rating: 8

Production-first end-to-end ASR: one model for streaming and non-streaming, built to ship.

About

WeNet is an open-source toolkit whose whole pitch is closing the gap between ASR research and production. Its U2 (Unified Two Pass) design trains a single CTC/attention model with a Transformer or Conformer encoder that serves both streaming and non-streaming through dynamic chunk attention, and trained models export straight through TorchScript with no conversion step. Started at Mobvoi (paper arXiv 2102.01547), it is now developed under the wenet-e2e org: Apache 2.0, about 5,200 stars. It ships a pip package and CLI (wenet -m paraformer audio.wav) with pretrained Paraformer, FireRed and Whisper variants, plus x86 server and Android runtimes.

Specs

Context window

Audio-duration based; streaming and non-streaming unified

Pricing

Free (open source)

Free quota

Free and open source under Apache-2.0

API access

Self-hosted: pip package, CLI and Python API; x86 server and Android runtimes

Weights

Open weights

Released

Not disclosed

Benchmarks

Paper and recipe-published results (e.g. AISHELL CER improvements over a standard Transformer); community-run rather than a vendor leaderboard.

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

production-asrstreaming-transcriptionon-device-asrchinese-speech-recognition

Trust score — 8/10

/10 trustVerified

Scored 8/10 (verified tier, metrics-v1). Evidence: wenet-e2e/wenet repo verified active with ~5.2k stars and Apache-2.0 via GitHub API; U2 paper (arXiv 2102.01547) documents the architecture and AISHELL results. Strengths: genuinely production-oriented design, unified streaming model, maintained runtimes. Docked for: (1) smaller community than ESPnet/SpeechBrain; (2) Chinese-speech heritage means English recipe coverage is thinner. License: Apache-2.0.

How the trust score is built

Full methodology →

Adoption · stars/downloads, log-scaled vs peers: 7.0/10
Maintenance · recency, releases, issue load: 8.0/10
Openness · license + docs: 10.0/10
Manual review · sanity read + red-flag check: 8.0/10

· ~5,247 stars; paper arXiv 2102.01547
· U2 unified streaming/non-streaming two-pass (CTC/attention)
· TorchScript export with no model conversion step
· Repo now maintained under wenet-e2e org; x86 + Android runtimes