{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/gemini-2-5-tts/","md":"https://postcutoff.com/m/gemini-2-5-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":"gemini-2-5-tts","name":"Gemini 2.5 Flash TTS / Pro TTS","org":"Google DeepMind","family":"Gemini 2.5","released":"2025-05-20","status":"legacy","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":{"input":0.5,"output":10,"unit":"per 1M tokens (USD) for Flash TTS; Pro TTS $1.00 in / $20.00 audio out (25 audio tokens per second)","source":"https://ai.google.dev/gemini-api/docs/pricing"},"price_line":"$0.50 in, $10 out per 1M tokens","access":[{"provider":"Gemini API","model_id":"gemini-2.5-flash-preview-tts","docs":"https://ai.google.dev/gemini-api/docs/models"},{"provider":"Gemini API","model_id":"gemini-2.5-pro-preview-tts","docs":"https://ai.google.dev/gemini-api/docs/models"},{"provider":"Google Cloud Text-to-Speech (Gemini-TTS, GA)","model_id":"gemini-2.5-flash-tts","docs":"https://docs.cloud.google.com/text-to-speech/docs/release-notes"},{"provider":"Google Cloud Text-to-Speech (Gemini-TTS, GA)","model_id":"gemini-2.5-pro-tts"},{"provider":"Google Cloud Text-to-Speech (preview)","model_id":"gemini-2.5-flash-lite-preview-tts"}],"capabilities":[{"name":"Prompt-controlled multi-speaker TTS","detail":"Natural-language control of style, accent, pace and emotion; single and multi-speaker synthesis; 30 speakers in 80+ locales (Cloud GA).","first":false,"discovered":"launch","source":"https://docs.cloud.google.com/text-to-speech/docs/release-notes"}],"entry":null,"notes":"Gemini API ids are 'Limited Access' preview with no shutdown date (migrate to gemini-3.8-flash-tts / -lite-tts). In Cloud TTS, gemini-2.5-flash-tts and gemini-2.5-pro-tts went GA 2025-09-30; streaming added 2025-11-07. Released date = Google I/O 2025 preview (from memory, not re-verified today); Dec 10 2025 update improved expressivity and pacing.","verified":"2026-09-29","body_md":"Sources: [Gemini models](https://ai.google.dev/gemini-api/docs/models), [Gemini pricing](https://ai.google.dev/gemini-api/docs/pricing), [Cloud TTS release notes](https://docs.cloud.google.com/text-to-speech/docs/release-notes), [Cloud TTS pricing](https://cloud.google.com/text-to-speech/pricing).","page_url":"https://postcutoff.com/m/gemini-2-5-tts/","standing":{"kind":"speech and audio","newer_count":95,"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":"chirp-3-hd","name":"Chirp 3 HD voices (Google Cloud Text-to-Speech)","org":"Google","released":"2025-04-02","page_url":"https://postcutoff.com/m/chirp-3-hd/"},"after":{"id":"gemini-2-5-flash-native-audio","name":"Gemini 2.5 Flash Native Audio (Live, preview)","org":"Google DeepMind","released":"2025-09-23","page_url":"https://postcutoff.com/m/gemini-2-5-flash-native-audio/"},"weights":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights; access is hosted only."}}