Flux 3 API

Name: Flux 3 API - Example AI Video
Uploaded: 2026-07-28
Description: Sample video generated with the Flux 3 API on VideoGenAPI

Interactive demo

Try Flux 3 right now

Explore the interface and see how easy it is to generate videos with Flux 3. Sign up for free to start creating!

Playground Demo - Flux 3

Demo Mode

Describe your video *

magic_button AI Powered

Be specific for best results 0/1000

Generation Type

Video Settings

Sign up to generate videos

Create a free account to access the full playground and generate videos with Flux 3 on a monthly plan.

timer ~88s generation

rocket_launch Get Started Free

Demo Preview

Demo Mode

Flux 3

by Black Forest Labs

FLUX.3 is a multimodal AI generation model built for creating and editing high-quality images, videos, and native audio within a unified architecture, offering realistic visual consistency, natural motion, synchronized sound, and advanced world understanding for cinematic content, advertising, creative production, and visual prototyping.

1080p • 5-15s • ~88s processing

Gallery

Flux 3 examples

Discover what's possible with Flux 3 AI video generation

A hand places a coffee bag on a marble counter, the label reading "SINGLE ORIGIN" stays sharp and legible, soft window light, slow push in

Generated with the Flux 3 API at up to 1080p. Results vary with prompt detail and requested duration.

What is the Flux 3 API?

The Flux 3 API is a REST interface that lets developers generate AI videos programmatically using Black Forest Labs's Flux 3 model. It supports text-to-video, image-to-video through a single POST endpoint. VideoGenAPI handles authentication, billing, and provider infrastructure - you only need one API key to start building with the Flux 3 API.

Black Forest Labs

Provider

REST

API protocol

~88s

Avg. generation

How to use the Flux 3 API

Integrate the Flux 3 API in your app in under 5 minutes with these four steps.

1

Create your VideoGenAPI account

Sign up free at VideoGenAPI.com and generate your API key from the dashboard. No Black Forest Labs account needed.
2

Send a request to the Flux 3 API

POST to https://videogenapi.com/api/v1/generate with your API key, model "flux-3", and a text prompt describing your video.
3

Poll for completion

Use the returned generation_id to poll GET /api/v1/status/{id} until the job completes. Video completion webhooks are not available yet.
4

Download your video

Once status is "completed", retrieve the video URL from the response and embed it in your app, website, or workflow.

Get your Flux 3 API key for free

Documentation

About Flux 3

info Overview

Flux 3 comes from Black Forest Labs, the team behind the FLUX image models that became the default choice for prompt accuracy and legible in-image text. Flux 3 carries that discipline into video: it renders signage, product labels, UI screens and on-screen typography without the melted lettering that most video models produce. That makes Flux 3 a different tool from the cinematic models. Where Sora 2 and Veo 3 optimise for spectacle, Flux 3 optimises for getting exactly what the prompt asked for, which is what you want when a brand name has to be readable. It handles both text-to-video and image-to-video across 5-15 second clips at up to 1080p.

stars Key Strengths

check_circle Best-in-class legible text and typography inside the frame
check_circle Literal prompt adherence inherited from the FLUX image family
check_circle Multimodal generation and editing from the Black Forest Labs architecture
check_circle Text-to-video and image-to-video across 5-15 second clips
check_circle Clean output for brand and product work at up to 1080p

check_circle Supported Features

Text to Video
Image to Video

settings Specifications

Max Resolution: 1080p
Duration Range: 5-15s
Avg. Processing: ~88s

workspace_premium Why Flux 3 via VideoGenAPI?

check_circle
Unified API: Access Flux 3 alongside 16 other models with one API key - no separate Black Forest Labs setup.
check_circle
Pay-per-use: Included in your balance with transparent per-generation billing.
check_circle
Production-ready: REST endpoints, status polling, webhooks, and comprehensive docs for fast integration.

Use cases

What you can build with Flux 3

1

Branded product video

Keep logos, packaging copy and product names readable instead of smeared into nonsense.

2

UI and app demos

Show interface screens and button labels that stay sharp enough to read.

3

Signage and storefronts

Generate street scenes and retail settings where shop names and signs hold up under scrutiny.

API reference

Flux 3 API documentation

Quick start guide to integrate Flux 3 in your application

code Endpoint

POST https://videogenapi.com/api/v1/generate

send Request Example

{
  "model": "flux-3",
  "prompt": "A hand places a coffee bag on a marble counter, the label reading "SINGLE ORIGIN" stays sharp and legible, soft window light, slow push in",
  "duration": 10,
  "resolution": "480p"
}

download Response Example

{
  "success": true,
  "generation_id": "gen_abc123xyz",
  "status": "in_progress",
  "estimated_time": 88}

integration_instructions Code Examples

const response = await fetch('https://videogenapi.com/api/v1/generate', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    model: 'flux-3',
    prompt: 'A hand places a coffee bag on a marble counter, the label reading \"SINGLE ORIGIN\" stays sharp and legible, soft window light, slow push in',
    duration: 10  })
});

const data = await response.json();
console.log(data.generation_id);

import requests

response = requests.post(
    'https://videogenapi.com/api/v1/generate',
    headers={
        'Content-Type': 'application/json',
        'Authorization': 'Bearer YOUR_API_KEY'
    },
    json={
        'model': 'flux-3',
        'prompt': 'A hand places a coffee bag on a marble counter, the label reading \"SINGLE ORIGIN\" stays sharp and legible, soft window light, slow push in',
        'duration': 10    }
)

data = response.json()
print(data['generation_id'])

$ch = curl_init('https://videogenapi.com/api/v1/generate');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
    'model' => 'flux-3',
    'prompt' => 'A hand places a coffee bag on a marble counter, the label reading \"SINGLE ORIGIN\" stays sharp and legible, soft window light, slow push in',
    'duration' => 10]));

$response = curl_exec($ch);
$data = json_decode($response, true);
echo $data['generation_id'];

curl -X POST https://videogenapi.com/api/v1/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "flux-3",
    "prompt": "A hand places a coffee bag on a marble counter, the label reading "SINGLE ORIGIN" stays sharp and legible, soft window light, slow push in",
    "duration": 10  }'

View Full Documentation arrow_forward

Pricing

Flux 3 API pricing

Flux 3 API pricing on VideoGenAPI monthly plans — see the cost calculator.

Included

Included in VideoGenAPI monthly plans from $29

check_circle One API key for Flux 3 and 16 other models
check_circle No Black Forest Labs account required
check_circle Free signup with starter credits

Start with the Flux 3 API

Comparison

Flux 3 API vs alternatives

How the Flux 3 API compares on resolution, clip length, generation speed and price. All models below share one API key.

Comparison of the Flux 3 API against alternative AI video generation models on VideoGenAPI
Model	Provider	Max resolution	Clip length	Avg. speed	Price / video
Flux 3 API This page	Black Forest Labs	1080p	5-15s	~88s	Pay-as-you-go
Seedance 2.5 API	ByteDance	1080p	5-30s	~150s	Pay-as-you-go
Sora 2 API	OpenAI	1080p	10s	~110s	Pay-as-you-go
Veo 3 Fast API	Google DeepMind	1080p	8s	~60s	$0.45

Switching between these models means changing the flux-3 value in your request body. The endpoint, authentication and status polling stay the same.

Limits

Flux 3 API limitations

Plan duration and resolution caps apply even when the model supports higher output. See pricing.
Jobs are asynchronous: poll GET /api/v1/status/{id}. Video completion webhooks are not available yet.
Rate limits and fair-use throttling are documented on /docs/rate-limits.
Prompts and images that violate the content guidelines are rejected.

Text-to-video API hub Image-to-video API hub Catalogue benchmark Generate endpoint docs

Reviewed by Enzo Lanne · Founder, VideoGenAPI · Updated 28 July 2026

FAQ

Flux 3 API questions

What makes the Flux 3 API different from other video APIs? expand_more

Flux 3 renders in-frame text legibly. Most video models turn signage, labels and typography into unreadable shapes. If your video contains words that viewers must be able to read, Flux 3 is the model to reach for.

Is Flux 3 the same as the FLUX image models? expand_more

They share a lineage. Black Forest Labs built its reputation on the FLUX image models, and Flux 3 applies the same prompt-accuracy approach to video and multimodal generation.

How much does the Flux 3 API cost? expand_more

Flux 3 is included in VideoGenAPI monthly plans from $29. A test run and a production run both count toward the plan allowance.

Does Flux 3 support image-to-video? expand_more

Yes. Pass a reference image with a motion prompt to animate a still, which is the usual route for product shots where the packaging already exists as a photo.

How long does a Flux 3 generation take? expand_more

Flux 3 averages roughly 88 seconds per generation on VideoGenAPI, depending on requested duration and queue load.

Related models

Compare with other AI video models

Explore alternative models for different quality, speed, and budget needs.

Seedance 2.5 API

ByteDance

Seedance 2.5 is a state-of-the-art AI video generation model designed to create cinematic, high-quality videos from text and image prompts with advanced motion, strong scene continuity, and professional creative control.

Seedance 2.5 API docs arrow_forward

Sora 2 API

OpenAI

Sora 2, developed by OpenAI, is the best model for generating highly realistic videos and audio with precise physical simulations and synchronized dialogue.

Sora 2 API docs arrow_forward

Veo 3 Fast API

Google DeepMind

Google's most advanced video generation model with unparalleled quality and incredible detail.

Veo 3 Fast API docs arrow_forward