{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/neutts/","md":"https://postcutoff.com/m/neutts/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"neutts","name":"Neuphonic NeuTTS Air / NeuTTS Nano","org":"Neuphonic","family":"NeuTTS","released":"2025-10-02","status":"current","type":"audio/speech","modality_in":["text","audio"],"modality_out":["audio"],"open_weights":true,"model_license":"apache-2.0 (NeuTTS Air)","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":null,"price_line":"Price not published","access":[{"provider":"GitHub","url":"https://github.com/neuphonic/neutts"},{"provider":"Hugging Face","model_id":"neuphonic/neutts-nano-german","url":"https://huggingface.co/neuphonic/neutts-nano-german"}],"capabilities":[{"name":"On-device TTS with instant cloning","detail":"NeuTTS Air: 748M params (0.5B-class Qwen backbone + NeuCodec), real time from RTX 4090 down to Raspberry Pi, clones from ~3 s of audio, Perth watermark on every output; Nano: 229M total / 120M active for tighter edge devices.","first":false,"discovered":"launch","source":"https://www.marktechpost.com/2025/10/02/neuphonic-open-sources-neutts-air-a-748m-parameter-on-device-speech-language-model-with-instant-voice-cloning/"}],"entry":null,"notes":"Release date from MarkTechPost coverage (2025-10-02). Nano license and exact Air HF repo id (neuphonic/neutts-air) not verified today.","verified":null,"body_md":"Sources: https://github.com/neuphonic/neutts","page_url":"https://postcutoff.com/m/neutts/","standing":{"kind":"speech and audio","newer_count":82,"newer":[{"id":"nemotron-3-5-transcribe","name":"NVIDIA Nemotron 3.5 Transcribe (30B-A4B)","org":"NVIDIA","released":"2026-10-28","page_url":"https://postcutoff.com/m/nemotron-3-5-transcribe/"},{"id":"hy-simulmt-30b-a3b","name":"Hy-SimulMT-30B-A3B","org":"Tencent","released":"2026-10-22","page_url":"https://postcutoff.com/m/hy-simulmt-30b-a3b/"},{"id":"eleven-realtime-v1-max","name":"Eleven Realtime v1 Max / Mini","org":"ElevenLabs","released":"2026-10-20","page_url":"https://postcutoff.com/m/eleven-realtime-v1-max/"},{"id":"voxtral-mini-transcribe-3","name":"Voxtral Mini Transcribe 3 (+ Mini Transcribe Realtime 3)","org":"Mistral AI","released":"2026-10-20","page_url":"https://postcutoff.com/m/voxtral-mini-transcribe-3/"},{"id":"voxtral-small-transcribe-3","name":"Voxtral Small Transcribe 3","org":"Mistral AI","released":"2026-10-20","page_url":"https://postcutoff.com/m/voxtral-small-transcribe-3/"}],"before":null,"after":null,"weights":"public","licence":"apache-2.0 (NeuTTS Air)","licence_permissive":false,"summary":"Weights are public. Licence: Apache-2.0. See the licence for commercial terms."}}