Google · gemini-3.1-pro
Gemini 3.1 Pro API pricing
Use Gemini 3.1 Pro by Google through Keyino for 3.7% of the official price. One API key, OpenAI-compatible and native Anthropic endpoints, pay as you go. Save 96%
| Per 1M tokens | Keyino | Official |
|---|---|---|
| Input | $0.0745 | $2.00 |
| Output | $0.4473 | $12.00 |
| Cache read | $0.0075 | — |
Example cost
Reading 1M tokens and writing 100K tokens with Gemini 3.1 Pro costs about $0.1192 on Keyino, versus $3.20 at the official price.
Quick start
Create an API key at keyino.cc, then point your client to Keyino:
curl https://api.keyino.cc/v1/chat/completions \
-H "Authorization: Bearer sk-your-key" \
-H "Content-Type: application/json" \
-d '{"model":"gemini-3.1-pro","messages":[{"role":"user","content":"Hello"}]}'FAQ
Is this the real Gemini 3.1 Pro?
Yes. Requests are relayed to upstream providers serving Gemini 3.1 Pro; Keyino does not substitute other models. Usage, tokens and cost for every request are visible in your usage logs.
How do I pay?
Keyino is prepaid in US dollars. Top up with USDT at 1 USDT = $1. Failed requests are not charged and your balance never expires.
Is there free credit?
New accounts get $1 free credit, enough for about 3M Claude Opus 5.5 input tokens.
Prices updated 2026-10-09. Long-context requests may be billed at a higher tier where the official price does.