How much does Gemini 3.1 Pro Preview cost?
Gemini 3.1 Pro Preview (Google) costs $2 per 1M input tokens and $12 per 1M output tokens, $0.2 cached input. Calculate your cost per request, day and month.
| Provider | |
| Input | $2 / 1M tokens |
| Output | $12 / 1M tokens |
| Cached input | $0.2 / 1M tokens |
| Context window | — |
| Notes | Prompts ≤200K. Over 200K: $4 in / $18 out. |
| Source | https://ai.google.dev/gemini-api/docs/pricing |
| Last verified | 2026-10-14 |
Example: a chatbot
1,500 input + 400 output tokens per request, 2,000 requests/day, no caching: $0.00780 per request, $15.60 per day, $468.00 per month (30 days).
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