UniAll AI SEO/GEO · Nano Banana 2 · 2026-05-30

Nano Banana 2 API overview

Nano Banana 2 is an AI image generation model available on UniAll AI for both text-to-image and image-to-image creation. The public model id is `NanoBanana2-1K` for the 1K variant, with related resolution variants available for 0.5K, 2K, and 4K output.

It is a practical option when you need fast image generation, reference-image based creation, product visuals, posters, social media graphics, or batch creative testing through an API.

What Nano Banana 2 supports

Nano Banana 2 supports two main generation modes:

• **Text to image**: generate an image from a prompt.
• **Image to image**: use one reference image plus a prompt to guide the result.

Key API fields include:

• `model`: use `NanoBanana2-1K` for the 1K model.
• `generation_mode`: `text_to_image` or `image_to_image`.
• `prompt`: required text instruction.
• `image_url`: optional reference image for image-to-image mode.
• `aspect_ratio`: `1:1`, `16:9`, `9:16`, `4:3`, or `3:4`.
• `resolution`: `0.5K`, `1K`, `2K`, or `4K`.
• `num_images`: 1 to 4 images per request.

The API is asynchronous and uses the image generation endpoint:

```http POST /v1/images/generations ```

Example request:

```json { "model": "NanoBanana2-1K", "generation_mode": "image_to_image", "prompt": "A premium product poster with clean lighting and sharp details.", "image_url": "https://example.com/reference.png", "aspect_ratio": "1:1", "resolution": "1K", "num_images": 1 } ```

Pricing comparison by resolution

Nano Banana 2 pricing depends on the selected resolution tier and is billed per generated image. For API usage on UniAll AI, the listed API prices are:

| Resolution | API price per image | |---|---:| | 0.5K | $0.033 | | 1K | $0.044 | | 2K | $0.066 | | 4K | $0.088 |

For online/user generation, the 1K model price shown for `NanoBanana2-1K` is $0.0544 per image. Higher resolution costs more, so 0.5K or 1K is usually better for drafts and A/B testing, while 2K or 4K is better for polished marketing assets.

Who should use Nano Banana 2?

Nano Banana 2 is a good fit for:

• **Developers** building image generation into apps, internal tools, or automation workflows.
• **Ecommerce teams** creating product posters, main images, and campaign visuals.
• **Marketing teams** producing social graphics, ad concepts, and brand visuals.
• **Agencies and resellers** that need an API-based image model with multiple resolution tiers.
• **Product teams** that want async generation and predictable per-image billing.

Nano Banana 2 vs other image APIs

Compared with a generic image generation API, Nano Banana 2 is strongest when you need a simple production workflow with both prompt-only generation and one-reference-image generation. Its selectable resolution tiers make it easier to control cost: use lower resolution for exploration and 4K for final assets.

It is not positioned here as an officially partnered or exclusive model. On UniAll AI, it is provided as a platform-selected image model with API access, pricing, and request parameters exposed for integration.