Input
- Official Google
- $0.5
- Here (−50%)
- $0.25
gemini-3.1-flash-image
Gemini 3.1 Flash Image (Nano Banana 2) API — price per token
Gemini 3.1 Flash Image — Nano Banana 2 — is Google's image-generation Flash model: text and image in, rendered images out, billed per image-output token.
Pricing per 1M tokens
| Rate | Official Google | Here (−50%) |
|---|---|---|
| Input | $0.5 | $0.25 |
| Cached input | $0.05 | $0.025 |
| Output | $3 | $1.5 |
| Image output | $60 | $30 |
Cached input
- Official Google
- $0.05
- Here (−50%)
- $0.025
Output
- Official Google
- $3
- Here (−50%)
- $1.5
Image output
- Official Google
- $60
- Here (−50%)
- $30
Every request is metered at the official rate first, then the flat 50% B2C discount is subtracted before it touches your prepaid balance. Context window: 128K tokens. Max output: 32K tokens.
Best for
- Image generation and editing inside production apps.
- Multimodal pipelines that mix text and rendered output.
- High-volume creative and asset workflows.
Good to know
- Image output bills separately at $60 per 1M image-output tokens ($30 here); text output bills at the standard $3.00 rate.
- 128K context window and 32K max output — smaller than the text Flash line.
How to use Gemini 3.1 Flash Image (Nano Banana 2)
Create a free account, generate one key, and point any Gemini-compatible tool at https://gemini.api.apitoken.sale with model ID gemini-3.1-flash-image — the native /v1beta/models/gemini-3.1-flash-image:generateContent surface works, authenticated with x-goog-api-key. New accounts include $10 of API usage at official prices — enough to test the model before topping up.
Frequently asked questions
How much does the Gemini 3.1 Flash Image API cost?
Officially $0.50 per 1M input tokens and $3.00 per 1M text output tokens, plus $60 per 1M image-output tokens. On apiToken.sale the flat 50% discount applies to every call — $0.25/$1.50, and $30 per 1M image-output tokens.
What is the model ID for Nano Banana 2?
gemini-3.1-flash-image. Use it unchanged with the Google GenAI SDK or any Gemini-compatible tool pointed at https://gemini.api.apitoken.sale, with the key sent as x-goog-api-key.
Flash Image or a text Flash model?
Flash Image is the image-generation model — use it when the response must include rendered images. For text-only work, gemini-3.6-flash gives you a larger context window and lower output cost.
Run Gemini 3.1 Flash Image (Nano Banana 2) on the native Gemini API at a flat 50% off — instant key, prepaid balance, card or crypto.