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Gemini 3.1 Pro Preview API price
gemini-3.1-pro-preview
The cheapest Gemini 3.1 Pro Preview API is $1.40/M input at Cheaper Inference (discount marketplace) - all 4 providers compared below, per 1M tokens.
FlagshipGoogle1.0M context4 sellers
Input
$1.40
per 1M tokens · Cheaper Inference (discount marketplace)
up to $4.00
Output
$8.40
per 1M tokens · Cheaper Inference (discount marketplace)
up to $18.00
Where to buy it
Cheapest Gemini 3.1 Pro Preview API providers compared - 4 sellers, from $1.40/M.
Cost calculator
| Provider | Input $/M | Output $/M | Cached in | Your cost |
|---|---|---|---|---|
| Cheaper Inference (discount marketplace)30% off | 1.40cheapest | 8.40 | 0.140 | |
| OrcaRouter (aggregator) | 2.00 | 12.00 | - | |
| TokenRouter (aggregator) | 2.00 | 12.00 | 0.200 | |
| BatchOfficial - Google (Gemini API) | 1.00 | 6.00 | - | |
| ≤ 200k tokens ctx | 2.00 | 12.00 | 0.200 | |
| > 200k tokens ctx | 4.00 | 18.00 | 0.400 | |
| Flex | 1.00 | 6.00 | - | |
| Batch | 2.00 | 9.00 | 0.200 | |
| Flex | 2.00 | 9.00 | 0.200 | |
| Priority | 3.60 | 21.60 | 0.360 | |
| Priority | 7.20 | 32.40 | 0.720 |
2.9× between the cheapest and the dearest of 4 sellers.
Against its tier
- This model$9.80
- Cheapest · GLM 5.3 Flash$0.29
- Tier median · Gemini 3.1 Pro$11.90
- Dearest · GPT 5.5 Pro (04-23 snapshot)$210.00
#18 of 38 flagship · cheaper than 54%
Details
- Context window
- 1.0M1,048,576 tokens
- Developer
- Intelligence
- 30.4
- Sellers
- 42.9× spread
- Cached input
- $0.14where the source publishes one
- Cheapest at
- Cheaper Inference (discount marketplace)
- Combined
- $9.80in + out per 1M
- Last checked
- 2026-09-17