Gemini 3.1 Flash Image (Nano Banana 2)
Closed Deprecated Image gen
gemini-3-1-flash-image
Fast, high-volume Nano Banana 2 image model; deprecated 2026-10-06 in favour of Nano Banana 2.1.
Released
Feb 26, 2026
Context window
Not disclosed
Max output
Not disclosed
Parameters
Not disclosed
Input price
$0.50 per 1M
Output price
$3.00 per 1M
Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.
Pricing
Launch priceFeb 26, 2026
$0.50 in / $3.00 out
$0.067 per image
$0.067 per image
Current price
since Feb 26, 2026
$0.50 in / $3.00 out
$0.067 per image
$0.067 per image
Specifications
- Developer
- Model type
- Image gen
- Architecture
- Not disclosed
- Parameters
- Not disclosed
- Input
- Text Image Video
- Output
- Text Image
- Knowledge cutoff
- Not disclosed
- License
- Proprietary
- API access
- First-party API