Speech Synthesis / Quote
Gemini 3.1 Flash TTS Preview API Price Free Speech Synthesis
Google · gemini-3.1-flash-tts-preview
| Billing | USD · 1M tokens |
|---|---|
| Modalities | Text / Audio |
| Deep Thinking | — |
| Batch API | 50% off (input $0.5 / output $10) |
| Verified Date | 2026-10-13 |
| Official pricing page | ai.google.dev/gemini-api/docs/pricing ↗ |
Source text: the note below is the model's official text, kept in its original Chinese and not translated.
Text-to-Speech preview. Text input $1.00/1M, audio output $20.00/1M. 25 tokens/sec. Batch 50% off Standard (text $0.50, audio $10.00).
Report a pricing issue
Found inaccurate pricing or model information? We will review it.
Google Related Models
- Gemini 3.8 Flash $0.75 / $3.75
- Gemini 3.7 Flash $0.75 / $3.75
- Gemini 3.6 Flash $1.5 / $7.5
- Gemini 3.6 Flash-Tiered $0.75 / $3.75
- Gemini 3.5 Flash $1.5 / $9
- Gemini 3.5 Flash-Lite $0.3 / $2.5
- Gemini 3.1 Flash-Lite Free
- Gemini 3.1 Pro Preview $2 / $12
- Gemini 3 Pro Preview $4 / $20
- Gemini 3 Flash (previous generation) Free
- Gemini 2.5 Pro Free
- Gemini 2.5 Flash (text/image/video/audio) Free
- Gemini 2.5 Flash-Lite Free
- Gemini 3.8 Live Free
- Gemini 3.5 Live Translate Free
- Gemini 3.1 Flash Image (Nano Banana 2) $0.5 / $60
- Gemini 3.1 Flash Lite Image (Nano Banana 2 Lite) $0.25 / $30
- Gemini 3 Pro Image (Nano Banana Pro) $2 / $120
- Nano Banana Pro (Gemini 3 Pro Image, Preview channel) $2 / $120
- Veo 3.1 $0.4 /sec
- Veo 3.1 Fast $0.1 /sec
- Veo 3.1 Lite $0.05 /sec
- Veo 2.0(Discontinued) $0.35 /sec
- Veo 3.0(Discontinued) $0.4 /sec
- Veo 3.0 Fast(Discontinued) $0.15 /sec
- Gemini Omni Flash $1.5 / $17.5
- Gemini 3.8 Flash TTS Free
- Gemini 3.8 Flash-Lite TTS Free
- Gemini 2.5 Flash Preview TTS Free
- Gemini 2.5 Pro Preview TTS $1 / $20
- Gemini 3.5 Transcribe Free
- Gemini 3.5 Transcribe Live Free
- Lyria 3.5 Tiered
- Lyria 3 Clip Preview Tiered
- Lyria 3 Pro Preview Tiered
- Gemini 3.8 Live Extended Thinking Free
- Gemini 3.1 Flash Live Preview Free
- Gemini Omni Flash Preview $1.5 / $17.5
- Gemini 3.1 Pro Preview (Custom Tools) $2 / $12
- Gemini Nano Banana 2.1 $1.5 / $30
- Gemini 3 Flash Preview Free
- Gemini 2.5 Flash Native Audio (Live API) Free
- Gemini 2.5 Flash Image (Nano Banana) $0.3 / $30
- Gemini Embedding 2 Free
- Gemini Robotics ER 2 Preview Free
- Gemini Robotics ER 2 Streaming Preview Free
- Gemini 4 Argon $2 / $10
- Gemini 3 Pro (text/image/video/audio) $4 / $18
- Gemini Live (audio-to-audio) Free
- Gemini Live Translate Free
- Gemini Live Transcribe Free
- Gemini Transcribe Free
- Veo (next-generation video generation, generally available) $1.5 / $17.5
- Veo (next-generation video generation and editing model) $1.5 / $17.5
FAQ
How much does the Gemini 3.1 Flash TTS Preview API cost?
Free
Which input modalities does Gemini 3.1 Flash TTS Preview support?
Text / Audio.
Does Gemini 3.1 Flash TTS Preview offer Batch API discounts?
Yes. The Batch API gets 50% off — input $0.5/1M tokens, output $10/1M tokens. Suited to non-realtime, asynchronous workloads.
How does Gemini 3.1 Flash TTS Preview compare with peers on value?
Google Gemini 3.1 Flash TTS Preview is priced low among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit Gemini 3.1 Flash TTS Preview?
Good for: voice-overs, audiobooks, social media, navigation systems, accessibility.
Does Gemini 3.1 Flash TTS Preview have a free tier?
Check Google's official pricing page for the latest free quota, trial policy and tiered pricing. Policies differ by vendor and change over time.