Browse ModelsGoogleGoogle Nano Banana 2 Edit

Google Nano Banana 2 Edit

Google Nano Banana 2 Edit

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Google Nano Banana 2 (Gemini 3.1 Flash Image) Edit enables image editing with 4K-capable output. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Google Nano Banana 2 Edit

Nano Banana 2 Edit (Gemini 3.1 Flash Image) is Google’s advanced AI-powered image editing and generation model, designed to make visual transformation as intuitive as describing it in words. Built on Google’s cutting-edge computer vision and generative research, it combines precision, flexibility, and semantic awareness for professional-grade editing.


Why Choose This?

  • 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.

  • Multi-resolution support Output in 1K, 2K, or 4K resolution based on your needs.

  • Flexible aspect ratios Multiple options including 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, and 21:9.

  • Prompt Enhancer Built-in tool to automatically improve your edit descriptions.

  • Format choice Export in PNG or JPEG format.


Parameters

ParameterRequiredDescription
imagesYesReference images to edit (max: 14, click ”+ Add Item” to add more)
promptYesText description of the desired edit
aspect_ratioNoAspect ratio: 1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9
resolutionNoOutput resolution: 1k (default), 2k, 4k
output_formatNoOutput format: png (default), jpeg

How to Use

  1. Upload reference images — add the images you want to edit (up to 14 images).
  2. Write your prompt — describe the edit clearly (e.g., “Change the man to a woman”).
  3. Choose aspect ratio (optional) — select a preset or leave empty for default.
  4. Select resolution — choose 1K, 2K, or 4K based on your needs.
  5. Choose output format — PNG for transparency support, JPEG for smaller file size.
  6. Use Prompt Enhancer (optional) — click to automatically refine your description.
  7. Run — submit and download your edited image.

Pricing

ResolutionCost
1k$0.08
2k$0.08
4k$0.16

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.
  • 2K offers the best value — same price as 1K with higher resolution.
  • 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.
  • 4K resolution costs 2× the standard rate.
  • Ensure your prompts comply with Google’s Safety Guidelines.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/google/nano-banana-2/edit" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "resolution": "1k",
    "output_format": "png",
    "enable_sync_mode": false,
    "enable_base64_output": false
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

ParameterTypeRequiredDefaultRangeDescription
imagesarrayYes[]1 ~ 14 itemsList of URLs of input images for editing. The maximum number of images is 14.
promptstringYes-The positive prompt for the generation.
aspect_ratiostringNo-1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9The aspect ratio of the generated media.
resolutionstringNo1k1k, 2k, 4kThe resolution of the output image.
output_formatstringNopngpng, jpegThe format of the output image.
enable_sync_modebooleanNofalse-If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.
enable_base64_outputbooleanNofalse-If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayArray of URLs to the generated content (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.has_nsfw_contentsarrayArray of boolean values indicating NSFW detection for each output
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

ParameterTypeRequiredDefaultDescription
idstringYes-Task ID

Result Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
dataobjectThe prediction data object containing all details
data.idstringUnique identifier for the prediction, the ID of the prediction to get
data.modelstringModel ID used for the prediction
data.outputsstringArray of URLs to the generated content (empty when status is not completed).
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds
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