Gemini 3.1 Pro pricing
$$$ Premium$2.00/M input · $12.00/M output. List prices from provider data; in idapt, chat is metered per token with transparent, usage-based pricing at the prices shown in the app.
Full rate table
| Rate | Price | Unit |
|---|---|---|
| Input | 2 | /M tokens |
| Output | 12 | /M tokens |
| Reasoning | 12 | /M tokens |
| Cache read | 0.19999999999999998 | /M tokens |
| Cache write | 0.375 | /M tokens |
| Image input | 2 | /M tokens |
| Audio input | 2 | /M tokens |
| Web search | 0.014 | /search |
What typical work costs
| Workload | Tokens | List price |
|---|---|---|
| Quick question | 1K tokens in, 500 out | $0.0080 |
| Long-document summary | 60K tokens in, 2K out | $0.14 |
| Agent working session | 400K tokens in, 40K out across a day | $1.28 |
Price your own workload
- Per call
- $0.0080
- Per month
- $0.80
Compare up to four models at once in the cost calculator.
Frequently asked
What does Gemini 3.1 Pro cost per 1M tokens?
Gemini 3.1 Pro lists at $2.00 per 1M input tokens and $12.00 per 1M output tokens.
Does Gemini 3.1 Pro discount cached input tokens?
Yes. Cached input tokens are billed at $0.20 per 1M, versus $2.00 for fresh input. Prompts that repeat a long prefix (a system prompt, attached files) benefit the most.
What does a typical chat message with Gemini 3.1 Pro cost?
A message with about 1,000 input tokens and a 500-token reply costs roughly $0.0080 at list price. Long documents and long replies scale that linearly with token counts.
Is Gemini 3.1 Pro cheaper than Gemini 3 Flash?
Gemini 3 Flash has the lower blended price at a 3:1 input:output mix. Gemini 3.1 Pro: $2.00 in / $12.00 out per 1M. Gemini 3 Flash: $0.50 in / $3.00 out per 1M.
How does idapt bill Gemini 3.1 Pro?
Chat with Gemini 3.1 Pro in idapt is metered per token with transparent, usage-based pricing at the prices shown in the app. Subscriptions include a weekly usage allowance before any balance is touched.
Part of the Gemini 3.1 Pro model page · cheapest models board · price changes