Compare model prices
Input, output, cached and batch prices, every route and a month of tokens, side by side.
Gemini 3.1 Pro PreviewGemini 3.8 FlashA month of tokens
100M input and 20M output tokens, list price. Use your own numbers.
Side by side
| Gemini 3.1 Pro Preview | Gemini 3.8 Flash | |
|---|---|---|
| Input per 1M | $2 | $0.75 |
| Output per 1M | $12 | $3.75 |
| Cached input | $0.2 | $0.075 |
| Batch in / out | $1 / $6 | $0.375 / $1.88 |
| Blended (3:1) | $4.5 | $1.5 |
| Context | 1M | 1M |
| Routes | 6 | 6 |
| Released | Feb 19, 2026 | Sep 2, 2026 |
| Leadersboard score | 15 (#14) | 15 (#13) |
On the price map
Size: context window, 8K to 2MEqual blended cost (3:1) 243 models, lower left is cheaper
Every route
Gemini 3.1 Pro Preview
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
 Google Vertex AIglobal-flex, cheapest · cached $0.1 | $1 | $6 | $1 / $6-50% vs list | $0.1 | -50% vs list |
| Google Gemini API flex · cached $0.1 | $1 | $6 | $1 / $6-50% vs list | $0.1 | -50% vs list |
| Google Gemini API API The lab's own API · cached $0.2 | $2 | $12 | $2 / $12List price | $0.2 | List price |
| Google Vertex AI global · cached $0.2 | $2 | $12 | $2 / $12Same as list | $0.2 | Same as list |
| Google Vertex AI global-priority · cached $0.36 | $3.6 | $21.6 | $3.6 / $21.6+80% vs list | $0.36 | +80% vs list |
| Google Gemini API priority · cached $0.36 | $3.6 | $21.6 | $3.6 / $21.6+80% vs list | $0.36 | +80% vs list |
Gemini 3.8 Flash
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
| Google Vertex AI global-flex, cheapest · cached $0.037 | $0.375 | $1.88 | $0.375 / $1.88-50% vs list | $0.037 | -50% vs list |
| Google Gemini API flex · cached $0.037 | $0.375 | $1.88 | $0.375 / $1.88-50% vs list | $0.037 | -50% vs list |
| Google Gemini API API The lab's own API · cached $0.075 | $0.75 | $3.75 | $0.75 / $3.75List price | $0.075 | List price |
| Google Vertex AI global · cached $0.075 | $0.75 | $3.75 | $0.75 / $3.75Same as list | $0.075 | Same as list |
| Google Vertex AI global-priority · cached $0.135 | $1.35 | $6.75 | $1.35 / $6.75+80% vs list | $0.135 | +80% vs list |
| Google Gemini API priority · cached $0.135 | $1.35 | $6.75 | $1.35 / $6.75+80% vs list | $0.135 | +80% vs list |
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