{"schema":"postcutoff/model@1","as_of":"2026-10-25T23:49:00+01:00","url":"https://postcutoff.com/m/gemini-3-8-flash-lite-tts/","md":"https://postcutoff.com/m/gemini-3-8-flash-lite-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-3-8-flash-lite-tts","name":"Gemini 3.8 Flash-Lite TTS","org":"Google DeepMind","family":"Gemini 3","released":"2026-09-22","status":"current","type":"audio/speech","modality_in":["text"],"modality_out":["audio"],"open_weights":false,"model_license":"proprietary","context_window":8192,"max_output":16384,"knowledge_cutoff":null,"pricing":{"input":0.5,"output":6,"batch_input":0.25,"batch_output":3,"unit":"USD per 1M tokens (text in / audio out); introductory through 2026-12-31, then $1.00 / $12.00 (batch $0.50 / $6.00) from 2027-01-01; free tier available","source":"https://ai.google.dev/gemini-api/docs/pricing"},"price_line":"$0.50 in, $6 out per 1M tokens","access":[{"provider":"Gemini API","model_id":"gemini-3.8-flash-lite-tts","endpoint":"https://generativelanguage.googleapis.com/v1beta/models/gemini-3.8-flash-lite-tts:generateContent","docs":"https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash-lite-tts"},{"provider":"Google AI Studio","url":"https://aistudio.google.com"}],"capabilities":[{"name":"Low-cost everyday TTS in 101 languages","detail":"Built to replace gemini-3.1-flash-tts-preview for everyday single-speaker generation; 101 languages; audio out at $6 per 1M tokens vs $9 for Gemini 3.8 Flash TTS (intro prices).","first":false,"discovered":"launch","source":"https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash-lite-tts"},{"name":"Voice design and stored voice replication","detail":"Custom Voice design personas, prebuilt voices plus the Extended Voice Library, and persistent stored replicated voices (optional stateless keys).","first":false,"discovered":"launch","source":"https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash-lite-tts"},{"name":"Hume VoiceEQ 0.914","detail":"Scored 0.914 on Hume's blind Real-World VoiceEQ leaderboard, just behind Gemini 3.8 Flash TTS (0.920) and ahead of Cartesia Sonic 3.6 (0.840).","first":false,"discovered":"later","source":"https://www.hume.ai/blog/newly-released-google-s-gemini-3-8-flash-tts-tops-hume-s-real-world-voiceeq-leaderboard"}],"entry":"2026-09-15-gemini-3-8-live-and-tts","notes":"Artificial Analysis TTS arena (https://artificialanalysis.ai/text-to-speech/leaderboard), read 2026-10-25: rank #8, Elo 1252, listed at $11.0 per 1M characters (AA's normalisation; Google bills per 1M tokens). GA 2026-09-22 with gemini-3.8-flash-tts (per the Gemini API changelog, see entry). Supports Batch API, Flex and Priority inference; no Live API, function calling, thinking or caching. Default unary output WAV (audio/wav). Multi-speaker dialogue is recommended on the Flash TTS model instead. Model page last updated 2026-10-09; it does not label the model GA or preview. Output SynthID-watermarked (per Google's 3.8 TTS launch). Sibling: gemini-3-8-flash-tts.","verified":"2026-10-25","body_md":"The cheaper Gemini 3.8 text-to-speech model.\n\n```bash\ncurl \"https://generativelanguage.googleapis.com/v1beta/models/gemini-3.8-flash-lite-tts:generateContent\" \\\n  -H \"x-goog-api-key: $GEMINI_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"contents\":[{\"parts\":[{\"text\":\"Say warmly: Welcome back!\"}]}],\n       \"generationConfig\":{\"responseModalities\":[\"AUDIO\"]}}'\n```\n\nSources: [model page](https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash-lite-tts), [pricing](https://ai.google.dev/gemini-api/docs/pricing), [launch blog](https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-8-text-to-speech/), [AA leaderboard](https://artificialanalysis.ai/text-to-speech/leaderboard).","page_url":"https://postcutoff.com/m/gemini-3-8-flash-lite-tts/","standing":{"kind":"speech and audio","newer_count":17,"newer":[{"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/"},{"id":"voxtral-mini-tts-3","name":"Voxtral TTS 3 (Voxtral Mini TTS 3)","org":"Mistral AI","released":"2026-10-20","page_url":"https://postcutoff.com/m/voxtral-mini-tts-3/"},{"id":"gpt-live-1-1","name":"GPT-Live-1.1","org":"OpenAI","released":"2026-10-15","page_url":"https://postcutoff.com/m/gpt-live-1-1/"}],"before":{"id":"gemini-3-8-live","name":"Gemini 3.8 Live","org":"Google DeepMind","released":"2026-09-15","page_url":"https://postcutoff.com/m/gemini-3-8-live/"},"after":null,"weights":"closed","licence":"proprietary","licence_permissive":false,"summary":"Closed weights; access is hosted only."}}