Image variants & languages
July 12, 2026 · View on GitHub
Variants
| Variant | STT | TTS | Intent pipeline | Minimum hardware |
|---|---|---|---|---|
| lite | ovos-stt-plugin-server (public) | ovos-tts-plugin-server (public) | minimal | Pi 3 (might work) |
| hybrid | ovos-stt-plugin-server (public) | on-device (piper) | balanced | Pi 4 |
| offline | on-device (citrinet / fasterwhisper) | on-device (piper) | full | Pi 4/5, 4 GB+ RAM |
Release names look like raspOVOS-<lang>-bookworm-arm64-<variant>.img.xz.
DEV-prefixed releases are the untranslated base images the language
builds derive from — developers only.
Language-specific plugins
Languages with dedicated TTS plugins:
| lang | tts-plugin |
|---|---|
| ca | ovos-tts-plugin-matxa-multispeaker-cat |
| gl | ovos-tts-plugin-nos |
| eu | ovos-tts-plugin-ahotts |
STT per language (offline variant):
| lang | stt-plugin | model |
|---|---|---|
| en, es, ca, pt, de, it, nl, fr | ovos-stt-plugin-citrinet | per-language citrinet ONNX |
| da, gl, eu | ovos-stt-plugin-fasterwhisper | per-language faster-whisper |
Intent models (ovos-model2vec-intents-*) are selected per language where
trained; the multilingual LaBSE model is the fallback.
!!! note
The per-language matrix is being migrated to a benchmark-backed
model_matrix.json (with phoonnx TTS and onnx-asr STT as the new
offline defaults). Until then the tables above reflect what ships.
Known language gaps
eu,gl: only female voices available so farpt: no offline TTS voice yet (hybrid uses an online voice)ca: offline voice removed for licensing reasonsfr,da: no localized "wake up" wake word yet
Next steps
- Change the voice or STT
- Build manifest — see exactly what your image contains