Nano Banana Pro Economy API

Nano Banana Pro Economy is an image generation and editing model based on Google's Gemini 3.0 Pro Image, delivered via the iCreat platform as a cost-effective channel that supports up to 4K resolution output. The model handles both text-to-image generation and image-to-image editing, accepting up to 11 reference images (up to 6 high-fidelity object images and up to 5 portrait images) and offering three resolution tiers (1K/2K/4K) across 10 aspect ratios.

Notice: The model has economy is means this model is not stable and just pricing is lower than the official, if you run the project for stable service we suggest you using the official channel as first option and economy as the alternative retry channels.

On the iCreat platform, Nano Banana Pro Economy is accessed via an asynchronous two-step task flow at https://api.icreat.ai/v1/task/submit/google/gemini-3-pro-image-economy, followed by polling https://api.icreat.ai/v1/task/result with the same task_id. Pricing is $0.04 per generated image, billed by the number of images produced.

Model Positioning

Nano Banana Pro Economy is a cost-effective channel provided exclusively by the iCreat platform. While the underlying model is Google's Gemini 3.0 Pro Image, the "Economy" designation refers to the iCreat delivery channel rather than a separate Google-developed edition. The developer attribution remains Google. Economy channels offer lower pricing than the official tier but do not match the official channel's availability stability. For production workloads requiring stable service, the official channel should be the primary choice, with Economy serving as a backup retry channel.

Core Capabilities

Text-to-Image Generation

Accepts text prompts up to 8192 characters and generates images at 1K, 2K, or 4K resolution. Users can select from 10 aspect ratios (1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9) to match diverse output requirements.

Image-to-Image Editing

When the image field is non-empty, the model switches into image editing mode, using the provided reference images to guide generation. The model accepts up to 11 reference images in total, with specific sub-limits: up to 6 high-fidelity object images and up to 5 portrait images. Supported formats include png, jpg, jpeg, and webp.

Multi-Resolution Output

Three resolution tiers (1K, 2K, 4K) allow users to balance visual fidelity against cost. Higher resolutions deliver finer detail for large-format or print-ready outputs, while lower tiers suit thumbnails and rapid iteration.

Flexible Aspect Ratios

Ten aspect ratio options cover square, portrait, landscape, and ultrawide formats. When aspect_ratio is not explicitly specified, the model defaults to matching the aspect ratio of the first uploaded reference image.

Pricing

Note: Billing is based on the number of generated images. For example, generating 2 images costs $0.08. Pricing reflects the iCreat platform tier and is lower than the official overseas pricing.

Application Scenarios

• Marketing and advertising creative iteration with rapid text-to-image drafts at 1K, scaling to 4K for final assets
• Product visualization using up to 6 high-fidelity object reference images to preserve brand and material details
• Portrait-style content production using up to 5 portrait reference images for consistent character appearance
• Social media content generation across 10 aspect ratios, including 9:16 for short-form video covers and 21:9 for cinematic banners
• Cost-sensitive batch image generation where Economy pricing enables higher volume within fixed budgets
• Backup retry channel for production pipelines that primarily use the official Nano Banana Pro channel

Model Comparison

Comparison Table 1: Nano Banana Pro Economy vs Standard

Note: Economy pricing is approximately 30% of the Standard tier price. Capabilities are otherwise consistent. Standard pricing reflects Google's official overseas pricing tier matched on the iCreat platform.

Comparison Table 2: Same-Tier Image Generation Model Comparison

Note: Nano Banana Pro Economy is priced approximately 56% lower than Seedream 5.0 Pro while supporting 4K output. GPT Image 2 is billed per image at a price point above $0.04/image.

Why Choose Nano Banana Pro Economy?

• Lowest per-image price in its tier at $0.04/image, enabling high-volume generation at controlled cost
• Full 4K output support, matching the Standard tier's maximum resolution
• Up to 11 reference images with dedicated sub-limits for high-fidelity objects (6) and portraits (5)
• 10 aspect ratio options covering square, portrait, landscape, and ultrawide formats
• 8192-character prompt limit for detailed creative briefs
• Serves as a cost-effective backup retry channel alongside the official Nano Banana Pro channel

Specifications

Architecture

Nano Banana Pro Economy uses an asynchronous two-step task architecture. A client submits a generation request to the task submit endpoint with a flat top-level request body containing prompt, image (optional), aspect_ratio, and image_size. The platform returns a task_id. The client then polls the task result endpoint using the same task_id until the status reaches a terminal state.

Request body fields are flat top-level fields; the request does not wrap parameters inside input or parameters containers. During processing, the result field is an empty array [], and the client should continue polling. On success, result contains Image-type resources with url and download_url, and costUSD is returned. On failure, status becomes FAILED, which is a terminal state.

Notes

• Both steps (submit and query) use the same task_id. During processing, result is [] and polling should continue.
• FAILED is a terminal state. Check request parameters and reference media when this occurs.
• The request body uses flat top-level fields and does not wrap parameters inside input or parameters.
• The prompt field accepts up to 8192 characters.
• Reference images are limited to 11 total: up to 6 high-fidelity object images and up to 5 portrait images. Supported formats are png, jpg, jpeg, and webp.
• aspect_ratio accepts 10 values: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9. When not specified, it defaults to the aspect ratio of the first uploaded reference image.
• image_size supports three tiers: 1K, 2K, and 4K.
• costUSD is returned only on success.
• Economy is a cost-effective channel provided exclusively by the iCreat platform. Its availability is less stable than the official channel. For production environments, prefer the official channel and use Economy as a backup retry channel.

Frequently Asked Questions

How do I call Nano Banana Pro Economy?

Use the asynchronous two-step flow. Submit a generation request to https://api.icreat.ai/v1/task/submit/google/gemini-3-pro-image-economy with Bearer authentication and a flat top-level request body containing prompt, image (optional), aspect_ratio, and image_size. The platform returns a task_id. Poll https://api.icreat.ai/v1/task/result with the same task_id until the status reaches SUCCEEDED or FAILED.

How is billing calculated?

Billing is $0.04 per generated image, based on the number of images produced. For example, generating 2 images costs $0.08. The costUSD field is returned in the task result only when the task succeeds and reflects the total cost of that task.

What are the reference image limits?

You can provide up to 11 reference images in the image field. This total is split into sub-limits: up to 6 high-fidelity object images and up to 5 portrait images. Supported formats are png, jpg, jpeg, and webp. When the image field is non-empty, the model operates in image-to-image editing mode.

What resolutions and aspect ratios are supported?

image_size supports three tiers: 1K, 2K, and 4K. aspect_ratio accepts 10 values: 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, and 21:9. When aspect_ratio is not explicitly specified, the model defaults to the aspect ratio of the first uploaded reference image.

How does Economy differ from the official channel?

Economy is a cost-effective channel provided exclusively by the iCreat platform. Its price is lower than the official tier, but its availability is less stable than the official channel. For production workloads requiring stable service, use the official channel as the primary option and the Economy channel as a backup retry channel.

How does it differ from the Standard Nano Banana Pro?

The Economy price is approximately 30% of the Standard tier price. Capabilities are otherwise consistent: both support 4K output, up to 11 reference images, and 10 aspect ratios. The Standard tier offers better availability stability for production use.