{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/deepgram-flux-tts/","md":"https://postcutoff.com/m/deepgram-flux-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":"deepgram-flux-tts","name":"Deepgram Flux TTS","org":"Deepgram","family":"Flux","released":"2026-08-12","status":"current","type":"audio/speech","modality_in":["text"],"modality_out":["audio"],"open_weights":false,"model_license":"proprietary","context_window":null,"max_output":null,"knowledge_cutoff":null,"pricing":{"per_1k_characters":0.045,"unit":"per 1K characters pay-as-you-go ($0.0405 Growth); free until 2026-09-12, standard pricing from 2026-09-13","source":"https://deepgram.com/pricing"},"price_line":"$0.045 per 1K characters","access":[{"provider":"Deepgram API (real-time)","model_id":"flux-haley-en","endpoint":"wss://api.deepgram.com/v2/speak?model=flux-haley-en","docs":"https://developers.deepgram.com/docs/flux-tts/overview"},{"provider":"Deepgram API (batch)","model_id":"flux-{voice}-en","endpoint":"https://api.deepgram.com/v2/speak","docs":"https://developers.deepgram.com/docs/flux-tts/voices"}],"capabilities":[{"name":"Conversation-native TTS","detail":"Keeps context and voice consistency across turns of a conversation instead of treating each sentence in isolation; turn lifecycle events; on Interrupt reports exactly what the user heard (`text_spoken`).","first":false,"discovered":"launch","source":"https://deepgram.com/learn/text-to-speech-comes-of-age-deepgram-launches-conversation-native-speech"},{"name":"~80 ms response, structured-content accuracy","detail":"Starts responding in as little as 80 ms under production load; tuned for account numbers, alphanumerics, drug names and money amounts.","first":false,"discovered":"launch","source":"https://deepgram.com/learn/text-to-speech-comes-of-age-deepgram-launches-conversation-native-speech"}],"entry":"2026-08-12-deepgram-flux-tts","notes":"English only (39 voices; American, British, Irish, Australian, Indian, Singaporean, Filipino accents); use Aura-2 for other languages. Self-hosted GA 2026-08-26; speed 0.5-1.5 and expressivity -2..2 controls. Launched alongside Deepgram passing $100M ARR.","verified":"2026-09-29","body_md":"Voice-agent TTS served on /v2/speak (WebSocket for streaming LLM tokens, REST for batch).\n\nSources: https://developers.deepgram.com/docs/flux-tts/overview , https://developers.deepgram.com/docs/flux-tts/voices , https://deepgram.com/pricing , https://developers.deepgram.com/changelog","page_url":"https://postcutoff.com/m/deepgram-flux-tts/","standing":{"kind":"speech and audio","newer_count":35,"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":{"id":"deepgram-flux","name":"Deepgram Flux (conversational STT, English + Multilingual)","org":"Deepgram","released":"2025-10-02","page_url":"https://postcutoff.com/m/deepgram-flux/"},"after":null,"weights":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights; access is hosted only."}}