{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/vui-luna-tts/","md":"https://postcutoff.com/m/vui-luna-tts/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":"vui-luna-tts","name":"VUI Labs Luna-TTS (and Luna-TTS Realtime)","org":"VUI Labs","family":"Luna-TTS","released":"2026-06","status":"current","type":"audio/speech","modality_in":["text","audio"],"modality_out":["audio"],"open_weights":false,"model_license":"proprietary","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":{"per_1m_characters":15,"unit":"USD per 1M characters (Luna-TTS and Luna-TTS Character); voice cloning $3 per clone","source":"https://www.vuilabs.ai/"},"price_line":"$15 per 1M characters","access":[{"provider":"VUI Labs API","url":"https://www.vuilabs.ai/"},{"provider":"arXiv (technical report)","url":"https://arxiv.org/abs/2608.11593"}],"capabilities":[{"name":"Diffusion-language-model TTS (non-autoregressive)","detail":"Generates the whole RVQ token grid in a fixed number of parallel refinement steps; the Realtime variant is blockwise-autoregressive over 1.28 s blocks (RTF 0.0240, 41.6 ms first-block latency locally). 0.6B backbone, ~1M hours of zh/en/ja/ko speech.","first":false,"discovered":"launch","source":"https://arxiv.org/abs/2608.11593"},{"name":"Chinese startup at the top of TTS arenas","detail":"Pandaily (Aug 2026) reported #1 on Hugging Face TTS Arena and #3 on Artificial Analysis Speech Arena; on 2026-09-29 AA shows it #8 (Elo 1230).","first":false,"discovered":"later","source":"https://pandaily.com/vui-labs-luna-tts-number-one-tts-arena-qian-yanmin-voice-agent-aug2026"}],"entry":null,"notes":"Chinese voice-AI startup (Pandaily). Release month June 2026 per the Artificial Analysis leaderboard; technical report 2026-08-12 (Feng Yin et al., 22 authors). Supports zero-shot cloning, speech editing, emotion control, non-verbal vocalisations. We found no statement about open weights. Pandaily headline calls it China's 'Thinking Machines' and names Qian Yanmin (role not verified). Not the same as fluxions-ai 'Vui' (open Apache-2.0 small TTS).","verified":"2026-09-29","body_md":"Sources: https://arxiv.org/abs/2608.11593 , https://www.vuilabs.ai/ , https://artificialanalysis.ai/text-to-speech/model-families/luna-tts","page_url":"https://postcutoff.com/m/vui-luna-tts/","standing":{"kind":"speech and audio","newer_count":50,"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":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights."}}