Nano Banana 2 (Gemini 3.1 Flash Image)
by Googlegoogle/gemini-3.1-flash-image
Nano Banana 2 (Gemini 3.1 Flash Image) at a glance
- Maximum output
- 32,768 tokens
- Accepts
- Text, Image
- Returns
- Text, Image
- Features
- Image input
- Released
- 18 Jun 2026
- Knowledge cutoff
- Not published
Model facts synced from the OpenRouter model list on 19 Oct 2026.
Nano Banana 2 (Gemini 3.1 Flash Image) pricing by route
A route is the service LLMCompare calls to reach the model. Nano Banana 2 (Gemini 3.1 Flash Image) has 2 routes. Prices are in US dollars.
| Route | On LLMCompare | Inputper 1M tokens | Outputper 1M tokens | Image outputper 1M image tokens | Price verified on | Source |
|---|---|---|---|---|---|---|
| Google AI Studio (direct)Default | Runnable now | $0.50 | $3.00 | $60.00 | ai.google.dev/gemini-api/docs/pricing | |
| OpenRouter | Not configured | $0.50 | $3.00 | $60.00 | openrouter.ai/google/gemini-3.1-flash-image |
The cost shown in an LLMCompare report is calculated from these prices as they were at the time of the run.
Cost calculator
Estimate what a batch of calls to Nano Banana 2 (Gemini 3.1 Flash Image) costs. The starting numbers are examples. Change them to match your task.
The provider reports this number for each image. It depends on size and quality.
- Cost per call
- $0.0601
- 73 credits
- Cost of 10 calls
- $0.601
- 730 credits
Calculated from the Google AI Studio (direct) prices verified on 30 Sep 2026. Credits are the cost plus a 20% service fee, at $0.001 per credit, rounded up for each call, with a minimum of 1 per call. A real run is charged for the usage the provider reports.
Parameters you can set
All 2 routes accept the same parameters.
| Parameter | Type | Range or options | Default |
|---|---|---|---|
size | One of | 1024x10241536x10241024x15362048x2048 | Provider default |
aspect_ratio | One of | 1:13:22:34:33:416:99:16 | Provider default |
About Nano Banana 2 (Gemini 3.1 Flash Image)
Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced...
Description as published for this model. LLMCompare has not edited it.
Models to compare with Nano Banana 2 (Gemini 3.1 Flash Image)
Image models from the same provider and models at the nearest price. The order is not a ranking.
| Add to comparison | Model | Input priceper 1M tokens | Image priceunit under each price | Accepts | Released | On LLMCompare |
|---|---|---|---|---|---|---|
Nano Banana 2 (Gemini 3.1 Flash Image Preview)Googlegoogle/gemini-3.1-flash-image-preview | $0.50 | $60.00per 1M image tokens | Text, Image | No route yet | ||
Nano Banana 2.1Googlegoogle/gemini-nano-banana-2.1 | $1.50 | $30.00per 1M image tokens | Text, Image | No route yet | ||
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)Googlegoogle/gemini-3.1-flash-lite-image | $0.25 | $30.00per 1M image tokens | Text, Image | Runnable now | ||
Recraft V4 ProRecraftrecraft/recraft-v4-pro | — | $59.88per 1M image tokens | Text, Image | No route yet | ||
Recraft V4.1 Utility ProRecraftrecraft/recraft-v4.1-utility-pro | — | $50.30per 1M image tokens | Text, Image | No route yet | ||
Recraft V4.1 ProRecraftrecraft/recraft-v4.1-pro | — | $50.30per 1M image tokens | Text, Image | No route yet |
Questions about Nano Banana 2 (Gemini 3.1 Flash Image)
- How much does Nano Banana 2 (Gemini 3.1 Flash Image) cost?
- On the Google AI Studio (direct) route, Nano Banana 2 (Gemini 3.1 Flash Image) costs $60.00 per 1M image tokens, in US dollars. LLMCompare verified this price on 30 Sep 2026.
- What inputs does Nano Banana 2 (Gemini 3.1 Flash Image) accept?
- Nano Banana 2 (Gemini 3.1 Flash Image) accepts these inputs: Text, Image. Nano Banana 2 (Gemini 3.1 Flash Image) returns: Text, Image.
- Can I test Nano Banana 2 (Gemini 3.1 Flash Image) on my own data?
- Yes. LLMCompare can run Nano Banana 2 (Gemini 3.1 Flash Image) now. You add your own test cases, select Nano Banana 2 (Gemini 3.1 Flash Image) and the models you want to compare it with, and LLMCompare records every output with its cost and response time.