img_uuid, and resolve results by polling or HTTPS callback.FLUX.2 klein 9B API
Add FLUX.2 klein 9B image generation to your application through GoEnhance. Submit text prompts or up to nine reference images, receive an
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Two Image Workflows, One Endpoint
Text-to-Image Generation
Send a required prompt of 1–2,000 characters and omit image_list to generate an image from text. Choose a supported ratio or let the model use its default.
Reference-Guided Editing
Provide 1–9 HTTPS image objects in image_list with the prompt to run image-to-image. This supports product variations, concept refinement, and art-direction workflows.
Validate the request before submitting it to the image endpoint.
FLUX.2 klein 9B API Parameters
Endpoint
POST JSON to <code>https://api.goenhance.ai/api/v1/flux-2-9b</code>.
Authorization
Include your GoEnhance API credential in the <code>Authorization</code> header.
Prompt
Required text from 1 to 2,000 characters describing the requested output or edit.
Reference Images
Optionally send <code>image_list</code> with 1–9 objects containing publicly accessible image URLs.
Aspect Ratio
Supported values are <code>1:1</code>, <code>2:3</code>, <code>3:2</code>, <code>4:3</code>, <code>3:4</code>, <code>16:9</code>, and <code>9:16</code>.
Callback URL
Optionally provide a public HTTPS <code>custom_callback_url</code> for processing, success, and failed updates.
Use the documented GoEnhance rate and asynchronous task contract in your integration plan.
FLUX.2 klein 9B API Pricing and Delivery
0.4 Tokens per Image
GoEnhance documents a price of 0.4 tokens, equal to $0.008, for each generated image.
Same Rate for Both Modes
Text-to-image and image-to-image requests use the same documented per-image price.
Asynchronous Response
A successful submission returns <code>img_uuid</code>; retrieve the output from the task-detail endpoint or callback.
Integrate FLUX.2 klein 9B in Three Steps
1
1. Build the Request
Write a precise prompt, optionally add 1–9 reference image URLs, select a supported ratio, and add a public HTTPS callback if needed.
2
2. Submit and Persist
POST the payload with authorization, confirm
code: 0, and store the returned img_uuid with your application job. 3
3. Resolve the Task
Poll
GET /api/v1/jobs/detail or validate callback events until the task reaches success or failed, then store the output or handle the failure.Use prompt-only generation or reference-guided editing in practical image workflows.
What Developers Can Build
Product Visual Variations
Generate new settings or art directions around reference product imagery for campaign exploration.
Ad Creative Pipelines
Produce ratio-specific image concepts for banners, social placements, and performance creative testing.
Concept Art Tools
Turn structured prompts into visual concepts for environments, props, and characters.
Brand Style Exploration
Use reference inputs to test visual treatments while retaining useful context from supplied assets.
Localized Campaign Assets
Adapt scene direction and composition for regional creative workflows without changing the integration path.
Creative Prototyping
Compare prompt and reference strategies before committing to a larger production pipeline.
Answers about pricing, inputs, task handling, and Black Forest Labs API search intent.