Speech Synthesis / Quote
Gemini 3.1 Flash TTS Preview API Price Speech Synthesis
Google · gemini-3.1-flash-tts-preview
| Billing | USD · 百万 tokens |
|---|---|
| Modalities | 文本 / 音频 |
| Deep Thinking | — |
| Verified Date | 2026-09-04 |
| Official pricing page | ai.google.dev/gemini-api/docs/pricing ↗ |
音频按 25 tokens/秒 折算。
Pricing Tiers
| Tier | Price | Description |
|---|---|---|
| Batch(5 折) | in $0.5 / out $10 /百万 tokens | — |
Monthly Cost Estimate
30 days · no cache hits · list price
Free quotas, tiered pricing, batch discounts, and time-based pricing are not included; refer to official bills.
Google Related Models
- Gemini 3.8 Flash $0.75 / $3.75
- Gemini 3.7 Flash $0.75 / $3.75
- Gemini 3.6 Flash $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 $0.25 / $1.5
- Gemini 3.1 Pro Preview $2 / $12
- Gemini 2.5 Pro $1.25 / $10
- Gemini 2.5 Flash $0.3 / $2.5
- Gemini 2.5 Flash-Lite $0.1 / $0.4
- Nano Banana 2(Gemini 3.1 Flash Image) $0.5 / $60
- Nano Banana 2 Lite(Gemini 3.1 Flash Lite Image) $0.25 / $30
- Nano Banana Pro(Gemini 3 Pro Image) $2 / $120
- Veo 3.1 $0.4 /秒
- Veo 3.1 Fast $0.1 /秒
- Veo 3.1 Lite $0.05 /秒
- Gemini Omni Flash $1.5 / $17.5
- Gemini 3.5 Transcribe $2 / $12
- Gemini 3.5 Transcribe Live $3.5 / $21
- Lyria 3.5 $0.08 /首
- Lyria 3 Clip Preview $0.04 /首
- Lyria 3 Pro Preview $0.08 /首
FAQ
How much does the Gemini 3.1 Flash TTS Preview API cost?
Input $1/百万 tokens, output $20/百万 tokens
Which input modalities does Gemini 3.1 Flash TTS Preview support?
文本 / 音频.
What is the approximate monthly cost of Gemini 3.1 Flash TTS Preview?
Depends on volume: light use (1M input + 300K output per day) ≈ $210/month; medium (5M + 1.5M) ≈ $1,050/month; heavy agents (10M + 3M) ≈ $2,100/month. Cache hits, batch discounts and tiered pricing can lower this further.
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.