Nano Banana 2 Edit Fast | Fast Image Editing API

Google Nano Banana 2 Edit Fast

Nano Banana 2 Edit Fast (Gemini 3.1 Flash Image) is the cheapest Nano Banana 2 editing option, starting at just $0.045 per image. It delivers faster generation times while maintaining high visual quality, with 2K resolution by default.

Why Choose This?

Lowest cost Nano Banana 2 The cheapest Nano Banana 2 editing option at just $0.045 per image.
Speed-optimized Faster generation times compared to the standard variant.
Natural language editing Modify images using simple text instructions — the model understands context and relationships.
Multi-image reference Upload up to 14 reference images for complex edits and compositions.
High-resolution output 2K default with 4K available for maximum detail.
Flexible aspect ratios Multiple options including 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, and 8:1.
Prompt Enhancer Built-in tool to automatically improve your edit descriptions.
Format choice Export in PNG or JPEG format.

Parameters

Parameter	Required	Description
images	Yes	Reference images to edit (max: 14, click "+ Add Item" to add more)
prompt	Yes	Text description of the desired edit
aspect_ratio	No	Aspect ratio: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 1:4, 4:1, 1:8, 8:1
resolution	No	Output resolution: 2k (default), 4k
enable_web_search	No	Enable web search to enhance generation with real-time info (default: false)
output_format	No	Output format: png (default), jpeg

How to Use

Upload reference images — add the images you want to edit (up to 14 images).
Write your prompt — describe the edit clearly (e.g., "Change the man to a woman").
Choose aspect ratio (optional) — select a preset or leave empty for default.
Select resolution — choose 2K (default) or 4K based on your needs.
Choose output format — PNG for transparency support, JPEG for smaller file size.
Use Prompt Enhancer (optional) — click to automatically refine your description.
Run — submit and download your edited image.

Pricing

Resolution	Cost
2k	$0.045
4k	$0.05
Web search	+$0.014

Best Use Cases

Character Modification — Change attributes like gender, age, clothing, or appearance.
Object Replacement — Swap elements within images while preserving context.
Style Transfer — Apply different visual styles to existing images.
Text Editing — Modify on-image text while maintaining design consistency.
Scene Adjustment — Change backgrounds, lighting, or environmental elements.

Pro Tips

Use clear, specific edit instructions for best results (e.g., "Change the man to a woman" rather than "modify the person").
Start with fewer reference images (1–3) for simpler edits.
More reference images can help with complex compositions but may affect stability.
Try the Prompt Enhancer to automatically improve your descriptions.

Notes

Both images and prompt are required fields.
Maximum reference images: 14 (recommended: fewer images for better stability).
If aspect_ratio is not selected, the model uses a default ratio.
Ensure your prompts comply with Google's Safety Guidelines.

Related Models

Nano Banana 2 Edit — Standard variant with 0.5K/1K/2K/4K resolution options.
Nano Banana 2 Text-to-Image Fast — Fast text-to-image generation.
Nano Banana 2 Text-to-Image — Generate images from text prompts.
Nano Banana Pro Edit — Pro tier editing with enhanced quality.

Nano Banana 2 Edit Fast API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/google/nano-banana-2/edit-fast with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Nano Banana 2 Edit Fast below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/google/nano-banana-2/edit-fast" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "aspect_ratio": "1:1",
    "resolution": "2k",
    "enable_web_search": false,
    "output_format": "png",
    "enable_sync_mode": false,
    "enable_base64_output": false
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("google/nano-banana-2/edit-fast", {
        "prompt": "A cinematic shot of a city at sunset, soft golden light",
        "aspect_ratio": "1:1",
        "resolution": "2k",
        "enable_web_search": false,
        "output_format": "png",
        "enable_sync_mode": false,
        "enable_base64_output": false
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "google/nano-banana-2/edit-fast",
    {
    "prompt": "A cinematic shot of a city at sunset, soft golden light",
    "aspect_ratio": "1:1",
    "resolution": "2k",
    "enable_web_search": false,
    "output_format": "png",
    "enable_sync_mode": false,
    "enable_base64_output": false
}
)

print(output["outputs"][0])  # → URL of the generated output

Nano Banana 2 Edit Fast API — Frequently asked questions

What is the Nano Banana 2 Edit Fast API?

Nano Banana 2 Edit Fast is a Google model for image editing, exposed as a REST API on WaveSpeedAI. Google Nano Banana 2 Edit Fast (Gemini 3.1 Flash Image) is the cheapest Nano Banana 2 editing option, starting at just $0.045 per image. Enables fast image editing with 2K default output and 4K support. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Nano Banana 2 Edit Fast API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/google/google-nano-banana-2-edit-fast.

How much does Nano Banana 2 Edit Fast cost per run?

Nano Banana 2 Edit Fast starts at $0.045 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Nano Banana 2 Edit Fast accept?

Key inputs: `prompt`, `images`, `aspect_ratio`, `resolution`, `enable_base64_output`, `enable_sync_mode`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/google/google-nano-banana-2-edit-fast.

How do I get started with the Nano Banana 2 Edit Fast API?

Sign up for a free WaveSpeedAI account to claim starter credits, copy your API key from /accesskey, then call the endpoint shown in the API tab of the playground. The playground also auto-generates a code sample in Python, JavaScript, or cURL for the parameters you've set.

Can I use Nano Banana 2 Edit Fast outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (Google). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

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