{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/chirp-3-hd/","md":"https://postcutoff.com/m/chirp-3-hd/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":"chirp-3-hd","name":"Chirp 3 HD voices (Google Cloud Text-to-Speech)","org":"Google","family":"Chirp 3","released":"2025-04-02","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_1m_characters":30,"unit":"USD per 1M characters (first 1M chars/month free); Chirp 3 Instant custom voice $60 per 1M characters","source":"https://cloud.google.com/text-to-speech/pricing"},"price_line":"$30 per 1M characters","access":[{"provider":"Google Cloud Text-to-Speech API","model_id":"<locale>-Chirp3-HD-<Voice> (e.g. en-US-Chirp3-HD-Charon)","endpoint":"https://texttospeech.googleapis.com (regions global, us, eu, asia-southeast1, europe-west2, asia-northeast1)","docs":"https://docs.cloud.google.com/text-to-speech/docs/chirp3-hd"}],"capabilities":[{"name":"Streaming HD voices in 60+ locales","detail":"28 named voices, streaming and batch synthesis, pace (0.25-2x), pause and IPA/X-SAMPA pronunciation controls, SSML.","first":false,"discovered":"launch","source":"https://docs.cloud.google.com/text-to-speech/docs/chirp3-hd"},{"name":"Instant custom voice","detail":"Chirp 3 Instant custom voice clones a voice from a short sample (30+ locales), priced at $60 per 1M characters.","first":false,"discovered":"later","source":"https://docs.cloud.google.com/text-to-speech/docs/release-notes"}],"entry":null,"notes":"GA 2025-04-02 (8 speakers, 31 locales), since expanded to 60+ locales. Google's enterprise, non-LLM TTS line; the Gemini-TTS models (gemini-2.5-*-tts, Gemini 3.1 Flash TTS) are offered in the same Cloud TTS API. No 2026 successor (e.g. 'Chirp 4') found.","verified":"2026-09-29","body_md":"Sources: [Chirp 3 HD docs](https://docs.cloud.google.com/text-to-speech/docs/chirp3-hd), [Cloud TTS release notes](https://docs.cloud.google.com/text-to-speech/docs/release-notes), [pricing](https://cloud.google.com/text-to-speech/pricing).","page_url":"https://postcutoff.com/m/chirp-3-hd/","standing":{"kind":"speech and audio","newer_count":97,"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":{"id":"gemini-2-5-tts","name":"Gemini 2.5 Flash TTS / Pro TTS","org":"Google DeepMind","released":"2025-05-20","page_url":"https://postcutoff.com/m/gemini-2-5-tts/"},"weights":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights; access is hosted only."}}