Phonon 40M
Phonon 40M is available now for general LLM work with open-weight; evaluate it while provider pricing coverage matures.
- Family
- Phonon
- Released
- 2026-10-20
- Parameters
- 40M
- Specialization
- text-to-speech
- Openness
- Open weights
- License
- CC-BY-NC-4.0Not permitted
- Weights
- Available
- Code
- Unknown
No tracked provider pricing is available yet.
About
Phonon 40M is Gradium's larger open on-device text-to-speech model, released October 20, 2026 as five single-language checkpoints for English, French, German, Spanish and Portuguese. It has 40 million parameters and outputs streaming 24 kHz speech, with better expressivity and accuracy on hard text than Phonon 31M. Weights (about 75 MB at 8-bit) are on Hugging Face behind an automatic access form under CC BY-NC 4.0, so commercial use requires a license from Gradium.
Providers
No active provider routes are tracked for this model yet.
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
gradium/phonon-40m-engradium/phonon-40m-frgradium/phonon-40m-degradium/phonon-40m-esgradium/phonon-40m-ptNo tracked provider pricing is available yet.