{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/chatterbox/","md":"https://postcutoff.com/m/chatterbox/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":"chatterbox","name":"Resemble AI Chatterbox (Turbo / Nano / Multilingual V3)","org":"Resemble AI","family":"Chatterbox","released":"2025-05-28","status":"current","type":"audio/speech","modality_in":["text","audio"],"modality_out":["audio"],"open_weights":true,"model_license":"mit","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":null,"price_line":"Price not published","access":[{"provider":"Hugging Face","model_id":"ResembleAI/chatterbox","url":"https://huggingface.co/ResembleAI/chatterbox"},{"provider":"Hugging Face","model_id":"ResembleAI/chatterbox-turbo","url":"https://huggingface.co/ResembleAI/chatterbox-turbo"},{"provider":"pip","model_id":"chatterbox-tts","url":"https://github.com/resemble-ai/chatterbox"},{"provider":"NVIDIA NIM","model_id":"resembleai/chatterbox-multilingual-tts","url":"https://build.nvidia.com/resembleai/chatterbox-multilingual-tts/modelcard"}],"capabilities":[{"name":"Emotion exaggeration control","detail":"Original 0.5B Chatterbox exposes an exaggeration/intensity knob plus CFG; zero-shot cloning from ~5 s.","first":false,"discovered":"launch","source":"https://github.com/resemble-ai/chatterbox"},{"name":"Chatterbox-Turbo: one-step decoder, paralinguistic tags","detail":"350M params (Dec 2025); speech-token-to-mel decoder distilled from 10 steps to 1; native [laugh], [cough], [chuckle] tags; sub-200 ms production latency.","first":false,"discovered":"later","source":"https://huggingface.co/ResembleAI/chatterbox-turbo"},{"name":"Built-in PerTh watermark","detail":"Every output carries Resemble's imperceptible Perth neural watermark that survives MP3 compression and edits.","first":false,"discovered":"launch","source":"https://github.com/resemble-ai/chatterbox"},{"name":"Multilingual V3 and Nano","detail":"Multilingual V3 (0.5B, 23 languages, better speaker similarity, fewer hallucinations) plus single-language fine-tune packs; Chatterbox-Nano (110M, English, ~3x real time on 8 CPU cores).","first":false,"discovered":"later","source":"https://github.com/resemble-ai/chatterbox"}],"entry":null,"notes":"All MIT-licensed. Multilingual (23 langs) first released Sept 2025. Multilingual V3 released 2026-06-10 (Resemble post; V3 T3 weights first pushed to HF 2026-04-22): same 0.5B Llama backbone, training data up from 25.6k to 36.7k hours, 25 languages incl. 4 dialects and 6 tuned Language Pack models, PerTh watermark on by default; Resemble reports CER under 0.20% for Italian/German but ~71-75% for Korean/Vietnamese (not production-ready); NVIDIA NIM claims 2x-39x throughput. Chatterbox-Nano HF repo created 2026-04-14 (public announcement date not found). Artificial Analysis lists Chatterbox at ~1020 Elo (secondary source). Resemble's pricing page now centres on deepfake detection; hosted TTS price not verified.","verified":"2026-09-29","body_md":"Sources: https://www.resemble.ai/resources/chatterbox-multilingual-v3-tts-with-embedded-watermarking-for-25-languages , https://huggingface.co/ResembleAI/chatterbox-nano , https://github.com/resemble-ai/chatterbox , https://www.resemble.ai/learn/models/chatterbox-multilingual , https://huggingface.co/ResembleAI/chatterbox-turbo","page_url":"https://postcutoff.com/m/chatterbox/","standing":{"kind":"speech and audio","newer_count":94,"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":"mit","licence_permissive":true,"summary":"Weights are public under a permissive licence (MIT)."}}