Speech Synthesis / Quote
Gemini 3.8 Flash TTS API Price Speech Synthesis
Google · gemini-3.8-flash-tts
| Billing | USD · 1M tokens |
|---|---|
| Modalities | Text / Audio |
| Deep Thinking | — |
| Verified Date | 2026-09-28 |
| 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.
2026-09 推出的旗舰创意 TTS(官方定价页与官方模型页 gemini-3.8-flash-tts):促销标准价(至 2026-12-31)输入 $0.5 / 输入缓存 $0.125 / 输出 $9 每百万 tokens,2027-01-01 起恢复 $1/$18;Batch 与 Flex 5 折($0.25/$4.5)、Priority 1.8x($0.9/$16.2);音频按 25 tokens/sec 折算(约 $0.00225/10 sec);输入上限 8,192、输出上限 16,384 tokens;支持 130+ 语言,侧重高保真音色、拟人表演与长文多轮稳定性;与 Gemini 3.8 Flash-Lite TTS 同 API schema。
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Pricing Tiers
| Tier | Price | Description |
|---|---|---|
| standard rate(2027-01-01 onwards) | in $1 / out $18 /1M tokens | — |
| Batch/Flex(50% off) | in $0.25 / out $4.5 /1M tokens | — |
| Priority(1.8x) | in $0.9 / out $16.2 /1M 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 3.6 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 $0.25 / $1.5
- Gemini 3.1 Pro Preview $2 / $12
- Gemini 3 Pro Preview(Legacy) $2 / $12
- Gemini 3 Flash(Legacy) $0.5 / $3
- Gemini 2.5 Pro $1.25 / $10
- Gemini 2.5 Flash $0.3 / $2.5
- Gemini 2.5 Flash-Lite $0.1 / $0.4
- Gemini 3.8 Live(3.8 Live Extended Thinking / 3.1 Flash Live Preview) $0.75 / $4.5
- Gemini 3.5 Live Translate $3.5 / $21
- 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
- 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-Lite TTS $0.5 / $6
- Gemini 3.1 Flash TTS Preview $1 / $20
- Gemini 2.5 Flash TTS Preview $0.5 / $10
- Gemini 2.5 Pro TTS Preview $1 / $20
- Gemini 3.5 Transcribe $2 / $12
- Gemini 3.5 Transcribe Live $3.5 / $21
- Lyria 3.5 $0.08 /track
- Lyria 3 Clip Preview $0.04 /track
- Lyria 3 Pro Preview $0.08 /track
FAQ
How much does the Gemini 3.8 Flash TTS API cost?
Input $0.5/1M tokens, output $9/1M tokens
Which input modalities does Gemini 3.8 Flash TTS support?
Text / Audio.
What is the approximate monthly cost of Gemini 3.8 Flash TTS?
Depends on volume: light use (1M input + 300K output per day) ≈ $96/month; medium (5M + 1.5M) ≈ $480/month; heavy agents (10M + 3M) ≈ $960/month. Cache hits, batch discounts and tiered pricing can lower this further.
How does Gemini 3.8 Flash TTS compare with peers on value?
Google Gemini 3.8 Flash TTS is priced low among comparable models; compare against similar models. See the Pricemon market table for a full comparison.
What use cases suit Gemini 3.8 Flash TTS?
Good for: voice-overs, audiobooks, social media, navigation systems, accessibility.
Does Gemini 3.8 Flash TTS 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.