Image

Flux Kontext

Flux Kontext API provides fast prompt-based image generation and reference-guided editing with Pro and Max quality modes.

Pro and Max modesOptional reference image6 aspect ratiosJPEG or PNG output

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Endpoints

POSThttps://api.apixo.ai/api/v1/generateTask/flux-kontextCreate task

GEThttps://api.apixo.ai/api/v1/statusTask/flux-kontext?taskId={taskId}Poll status

Authentication

Checking API access...

Request body

request_type

async

Use callback with callback_url for webhooks.

input

object

Mode, prompt, references, size, duration, and audio settings.

Parameters

request_typerequired

Typeselect

Use async to poll statusTask, or callback to receive a webhook when the result is ready.async · callback

callback_urlconditional

Typetext

Public HTTPS URL for callback delivery.Only in request_type=callback

moderequired

Typeselect

Choose the generation workflow supported by this model.pro · max

promptrequired

Typestring

Describe the subject, composition, style, lighting, and details you want in the final image.

aspect_ratiorequired

Typeselect

Choose the output frame ratio.21:9 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16

output_formatoptional

Typeselect

Choose the returned image format when the model exposes format control.jpeg · png

promptUpsamplingoptional

Typeboolean

Enable prompt enhancement for more detailed results.

enableTranslationoptional

Typeboolean

Automatically translate non-English prompts when helpful.

safetyToleranceoptional

Typeselect

Content moderation level from strict to balanced.0 · 1 · 2

watermarkoptional

Typetext

Optional watermark identifier for generated images.

Parameter	Type	Required	Description
`request_type`	select	required	Use async to poll statusTask, or callback to receive a webhook when the result is ready.async · callback
`callback_url`	text	conditional	Public HTTPS URL for callback delivery.Only in request_type=callback
`mode`	select	required	Choose the generation workflow supported by this model.pro · max
`prompt`	string	required	Describe the subject, composition, style, lighting, and details you want in the final image.
`aspect_ratio`	select	required	Choose the output frame ratio.21:9 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16
`output_format`	select	optional	Choose the returned image format when the model exposes format control.jpeg · png
`promptUpsampling`	boolean	optional	Enable prompt enhancement for more detailed results.
`enableTranslation`	boolean	optional	Automatically translate non-English prompts when helpful.
`safetyTolerance`	select	optional	Content moderation level from strict to balanced.0 · 1 · 2
`watermark`	text	optional	Optional watermark identifier for generated images.

File parameters (URL arrays)

image_urls[mode=first_and_last_frames / omni_reference]Required for first_and_last_frames (1-2 images). Optional for omni_reference (1-9 images).Only in mode=first_and_last_frames / omni_reference

image_urlOptional image input for Flux Kontext editing workflows.

Example (cURL)

curl -X POST "https://api.apixo.ai/api/v1/generateTask/flux-kontext" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "request_type": "async",
    "input": {
      "mode": "pro",
      "prompt": "A serene mountain landscape at sunset with vibrant colors",
      "aspect_ratio": "16:9",
      "output_format": "jpeg",
      "promptUpsampling": true,
      "enableTranslation": true,
      "safetyTolerance": 2
    }
  }'

Full API documentation

Flux Kontext API Guide

Flux Kontext API for image generation workflows

Use Flux Kontext through APIXO to test prompts in the Playground, inspect demos, compare pricing, and move the same settings into production API calls.

Flux Kontext workflow

Build and ship Flux Kontext API workflows from one page

This Flux Kontext landing page is designed for teams that want to evaluate output quality, compare pricing, create API keys, and hand tested settings into production code from the same workflow.

Flux Kontext prompt testing

Use the Flux Kontext playground to test prompts, mode choices, and output settings before moving a request into production.

Flux Kontext demo review

Inspect real or placeholder image outputs first, then load the same demo parameters into the Playground for faster iteration.

Flux Kontext API handoff

Move from visual testing to API keys, cURL examples, request JSON, and documentation without leaving this model page.

Flux Kontext pricing clarity

Compare available pricing tiers on the same page before choosing a cost profile for production jobs.

Flux Kontext input control

Adjust reference images and aspect ratios directly in the Playground so the tested form matches the documented API surface.

Flux Kontext production readiness

Use APIXO when async polling, callback delivery, generation history, and predictable billing matter for team workflows.

Model Overview

What is the Flux Kontext API?

Flux Kontext is available through APIXO as a production API for image generation. The model page combines playground testing, real request parameters, pricing, and documentation handoff in one workflow.

Use this page to validate prompts and mode choices first, then keep the same settings for API keys, cURL examples, backend integration, and repeatable generation jobs.

Flux Kontext API workflow for production teams

Start with the Playground and choose the mode that matches your input assets.
Review example outputs and load demo parameters when you need a quick baseline.
Check pricing before sending large batches or higher-resolution jobs.
Use async polling for interactive UX or callback mode for backend queues.

Flux Kontext API Technical Specs

Current Flux Kontext API capabilities and integration-relevant constraints.

Flux Kontext Modes

Pro and Max image workflows

Flux Kontext Output

Pro and Max modes

Flux Kontext Controls

Optional reference image / 6 aspect ratios

Flux Kontext Latency

Typically 15-30 seconds

Key Flux Kontext capabilities

Flux Kontext image generation

Generate production-ready visual assets with prompt, mode, aspect ratio, and resolution controls exposed in the Playground.

Flux Kontext reference editing

Use supported image reference modes to steer composition, identity, or style without leaving the model page.

Flux Kontext creative iteration

Review demos, adjust parameters, compare pricing, and move tested settings into API calls from one place.

What can you build with Flux Kontext?

Flux Kontext marketing visuals

Create product shots, social assets, hero images, and campaign concepts with consistent API settings.

Flux Kontext design iteration

Use prompt and reference controls to explore visual directions before handing selected settings to production code.

Flux Kontext content pipelines

Connect async generation to CMS, ecommerce, or creative automation workflows with predictable request data.

Flux Kontext notes & limitations

Flux Kontext generation uses async task delivery; production systems should support polling or callback handling.
Result quality depends on prompt clarity, input asset quality, and provider-side model behavior.
All requests must pass provider safety, moderation, and account access checks.
Reference-image modes require valid image inputs and may not preserve every detail exactly.

Flux Kontext frequently asked questions

Start building

Try the playground above, then move to the API docs when you're ready to integrate.

Try playground View API docs

Flux Kontext API for image generation workflows

Build and ship Flux Kontext API workflows from one page

What is the Flux Kontext API?

Flux Kontext API workflow for production teams

Flux Kontext API Technical Specs

Flux Kontext Modes

Flux Kontext Output

Flux Kontext Controls

Flux Kontext Latency

Key Flux Kontext capabilities

Flux Kontext image generation

Flux Kontext reference editing

Flux Kontext creative iteration

What can you build with Flux Kontext?

Flux Kontext marketing visuals

Flux Kontext design iteration

Flux Kontext content pipelines

Flux Kontext notes & limitations

Flux Kontext frequently asked questions

Can I test Flux Kontext before writing API code?

Does Flux Kontext support async generation?

Where do the Flux Kontext parameters come from?

Can I replace the demo assets later?

Start building