Gemini 3.8 Flash TTS
Not scored yet on voice. $4.35 per 1,000 support replies at list price.
List price, not verified yet- Released
- 22 Sept 2026
- Context window
- 8K tokens
- Longest reply
- 16K tokens
- Open weights
- No
- Reasoning mode
- No
- Tool use
- No
- Reads
- text
- Writes
- audio
- Knowledge cutoff
- –
Voice–
Provisional, 0 to 100 among the voice models we track, from Arena and Epoch AI. How we score.Prices and where to run it
| Provider | Region | Input per 1M | Output per 1M | Cached input | Data retention | Checked |
|---|---|---|---|---|---|---|
| vercel | global | $0.50 | $9.00 | – | Not checked | List price, unverified |
Price history and a CSV download arrive with the open price dataset.
Call it through OpenRouter
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "google/gemini-3.8-flash-tts", "messages": [{"role": "user", "content": "Hello"}]}'Not listed on OpenRouter; use the vendor’s own API.