MODEL DIRECTORY

Model directory

Every entry comes from RTT versioned manifests. RTT-managed downloads require a checksum, size, and reviewed license; everything else stays an official link or a local-service instruction.

Speech recognition

Vosk 英语小模型

内置轻量英语流式识别；局部结果延迟低

Official page Download source

Engine: vosk
Languages: en
Platforms: android, windows
Archive: 41 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 日语小模型

内置轻量日语流式识别；局部结果延迟低

Official page Download source

Engine: vosk
Languages: ja
Platforms: android, windows
Archive: 50 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 中文小模型

轻量普通话离线识别；适合低内存设备

Official page Download source

Engine: vosk
Languages: zh
Platforms: android, windows
Archive: 44 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 韩语小模型

轻量韩语离线识别；适合低内存设备

Official page Download source

Engine: vosk
Languages: ko
Platforms: android, windows
Archive: 87 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 西班牙语小模型

轻量西班牙语离线识别；适合低内存设备

Official page Download source

Engine: vosk
Languages: es
Platforms: android, windows
Archive: 40 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 法语小模型

轻量法语离线识别；适合低内存设备

Official page Download source

Engine: vosk
Languages: fr
Platforms: android, windows
Archive: 42 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 德语小模型

轻量德语离线识别；适合低内存设备

Official page Download source

Engine: vosk
Languages: de
Platforms: android, windows
Archive: 46 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

Vosk 俄语小模型

轻量俄语离线识别；适合低内存设备

Official page Download source

Engine: vosk
Languages: ru
Platforms: android, windows
Archive: 46 MB
License: Apache-2.0
Runtime: Vosk 0.3.38; Android 10+ or Windows x64
Status: Verified

SenseVoiceSmall INT8

内置完整推理包；英中日韩粤语识别与自动检测

Official page Download source

Engine: sensevoice
Languages: auto, zh, en, ja, ko, yue
Platforms: android, windows
Archive: 160 MB
License: MIT
Runtime: sherpa-onnx 1.13.4; Android 10+ or Windows x64
Status: Verified

Omnilingual CTC 300M INT8

内置 1600+ 语言扩展识别；无语义标点时使用规则分句

Official page Download source

Engine: sherpa-onnx-omnilingual-ctc
Languages: auto, 1600+
Platforms: android, windows
Archive: 238 MB
License: Apache-2.0
Runtime: sherpa-onnx 1.13.4; Android 10+ or Windows x64
Status: Verified

Qwen3-ASR 0.6B INT8

多语高准确率识别；约 879 MB，适合大内存 Android 与 Windows；不内置 APK

Official page Download source

Engine: sherpa-onnx-qwen3-asr
Languages: auto, en, zh, ja, ko, vi, yue
Platforms: android, windows
Archive: 879 MB
License: Apache-2.0
Runtime: sherpa-onnx 1.13.4; Android 10+ or Windows x64
Status: Verified

Segmentation and punctuation

punctuation-en

Official page Download source

Engine: sherpa-onnx-online-punctuation
Languages: en
Platforms: android
Archive: 31 MB
License: Apache-2.0
Runtime: sherpa-onnx 1.13.4; Android 10+
Status: Verified

RTT multilingual rule segmentation

Language-aware fallback segmentation for Chinese, Japanese, Korean, and punctuation-poor recognizers.

Official page

Engine: rtt-rules
Languages: auto, zh, yue, en, ja, ko, es, fr, de, it, pt, ru, ar, hi, th, vi, id
Platforms: android, windows, web
Archive: -
License: Apache-2.0
Runtime: RTT 0.2.0+
Status: Verified

Text translation

bergamot-en-zh

Official page Download source

Engine: bergamot
Languages: en → zh-CN
Platforms: windows
Archive: 37 MB
License: MPL-2.0
Runtime: BergamotTranslatorSharp 0.5.1; Windows x64
Status: Verified

OPUS-MT 英语到中文 INT8

本地 Marian ONNX 翻译；比 ML Kit 更适合英语电影对白，首次下载后完全离线

Official page Download source

Engine: marian-onnx
Languages: en → zh-CN
Platforms: android
Archive: 182 MB
License: Apache-2.0
Runtime: ONNX Runtime Android 1.27.0; Android 10+
Status: Verified

bergamot-ja-en

Official page Download source

Engine: bergamot
Languages: ja → en
Platforms: windows
Archive: 49 MB
License: MPL-2.0
Runtime: BergamotTranslatorSharp 0.5.1; Windows x64; requires bergamot-en-zh for Japanese to Chinese
Status: Verified

Google ML Kit translation language packs

Per-language offline translation packs downloaded and managed by ML Kit on Android.

Official page

Engine: mlkit-translation
Languages: multilingual → multilingual
Platforms: android
Archive: -
License: Google ML Kit terms
Runtime: Android 10+; Google ML Kit
Status: Verified

OCR

Google ML Kit on-device OCR

Android on-device text recognition for selectable screen subtitle regions.

Official page

Engine: mlkit-text-recognition
Languages: zh, en, ja, ko, latin
Platforms: android
Archive: -
License: Google ML Kit terms
Runtime: Android 10+; Google ML Kit
Status: Verified

Tesseract.js OCR language data

Browser OCR candidate for user-selected screen captures; language data stays in browser storage.

Official page Official link only

Engine: tesseract.js
Languages: multilingual
Platforms: web
Archive: -
License: Apache-2.0
Runtime: Tesseract.js worker
Status: Official link only

Voice packages and voices

system-voices

Official page

Engine: system-tts
Languages: zh, en, ja, ko
Platforms: android, windows, web
Archive: -
License: Platform dependent
Runtime: RTT 0.2.0
Status: Verified

piper-zh-huayan

Official page Official link only

Engine: sherpa-onnx-tts
Languages: zh
Platforms: android, windows, web
Archive: -
License: Verify upstream model card before redistribution
Runtime: sherpa-onnx TTS
Status: Official link only

melotts-chinese

Official page Download source

Engine: melotts-local-service
Languages: zh
Platforms: windows
Archive: -
License: MIT
Runtime: Python local service plugin
Status: Candidate

cosyvoice3-0.5b

Official page Download source

Engine: cosyvoice-local-service
Languages: zh, en, ja, ko
Platforms: windows
Archive: -
License: Apache-2.0; verify model card and voice rights
Runtime: CosyVoice local service plugin
Status: Candidate

Bring your own resource

RTT keeps an entry point for folders, ONNX, GGUF, Vosk, Marian, Piper, and local services. A recognized file is not automatically executable: missing runtimes are shown clearly instead of being treated as ready.