YepAPI
Black Forest LabsVideo Generation/v1/media/queue

FLUX 3 Video API

FLUX 3 Video from $0.36/sec — Black Forest Labs video up to 4K with keyframe control.

Black Forest Labs' FLUX 3 Video. 5–20 second clips from 720p up to 4K with audio, six aspect ratios, and opening/closing keyframe control — from $0.36 per second.

No credit card required. Takes 30 seconds.

FLUX 3 Video API pricing

Pay per request from your YepAPI balance — no subscription, no monthly minimum. Prices updated October 23, 2026.

BillingPrice
Rate (720p)$0.36/sec
What it costsPer job
5-second clipfrom lowest resolution$1.80
10-second clipfrom lowest resolution$3.60
100 × 5-second clipsan ad-creative batch$180.00

2,400+

Developers

1.2M+

API calls served

100+

Endpoints

$0.01

Per call

Yep, that's it.

Try it live

Enter a prompt and generate a video with FLUX 3 Video.

POST/v1/media/queue

Drop image or click to upload

For image-to-video (first/last frame)

Response
Hit "Send Request" to see the response

FLUX 3 Video specs

ProviderBlack Forest Labs
Model IDblack-forest-labs/flux-3-video
Endpoint/v1/media/queue
TypeVideo Generation
Resolutions720p, 1080p, 2K, 4K
Aspect ratios21:9, 16:9, 4:3, 1:1, 3:4, 9:16
Durations5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 seconds
AudioGenerated with the video
Image inputYes

How to get a FLUX 3 Video API key

  1. 1

    Create a free account

    Sign up at yepapi.com with Google or email. It takes about 30 seconds and needs no card.

  2. 2

    Create an API key

    Open the dashboard, go to API Keys and create a key. Copy it — it starts with yep_sk_.

  3. 3

    Call FLUX 3 Video

    Send a request to /v1/media/queue with the x-api-key header and model "black-forest-labs/flux-3-video".

  4. 4

    Pay as you go

    Usage is billed per request from your balance. Top up any amount; there is no subscription.

Strengths

✓
Up to 4K output

Four resolution tiers — 720p, 1080p, 2K, and 4K — priced per second from $0.36.

✓
Opening & closing keyframes

Guide generation with uploaded first and last frames for controlled shots.

✓
5–20 second clips

Sixteen duration options across six aspect ratios from 21:9 to 9:16.

✓
Audio generation

Generates audio with the clip so a single request returns footage with sound.

Quick start

Copy this snippet and start making calls with FLUX 3 Video.

// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "model": "black-forest-labs/flux-3-video",
    "prompt": "A slow push-in on a rain-soaked neon alley, reflections rippling in puddles, steam drifting from a vent, a lone cyclist crossing the frame",
    "options": {
      "aspectRatio": "16:9",
      "resolution": "1080p",
      "duration": "6"
    }
  }),
});
const { data } = await res.json();
const jobId = data.jobId;

// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${jobId}`, {
  headers: { 'x-api-key': 'YOUR_API_KEY' },
});
const { data: job } = await status.json();
// job.status: "pending" | "processing" | "completed" | "failed"
// job.result: { text?, image?, audio?, video? }

FLUX 3 Video vs similar models

Every model below runs on the same API key — switch by changing the model ID.

ModelProviderPrice
FLUX 3 VideoBlack Forest Labsfrom $0.36/sec (720p)
Grok Imagine Video 1.5 LitexAIfrom $0.04/sec (480p)
HeyGen VideoHeyGenfrom $0.04/sec (480p)
Seedance 2.0 MiniByteDancefrom about $0.07/sec (480p)
Wan 2.6Alibabafrom $0.08/sec (480p), $0.17/sec (720p), $0.25/sec (1080p)
Veo 3.1 LiteGoogle$0.11/sec (720p), $0.17/sec (1080p); without audio from $0.06/sec
Hailuo 3 MaxMiniMaxfrom $0.11/sec (480p)
Grok Imagine VideoxAIfrom $0.11/sec (480p), $0.15/sec (720p)

Why use FLUX 3 Video through YepAPI?

✓One API key for all models — no separate accounts
✓No monthly minimums — pay per call
✓Switch models with one line of code
✓Simple REST API — works from any language
✓Unified billing across all providers
✓No rate limits for most use cases

FLUX 3 Video API — Black Forest Labs video up to 4K

FLUX 3 Video is a video generation model from Black Forest Labs for text-to-video and image-guided generation with opening and closing keyframes, suited to controlled shots. It renders 5 to 20 second clips at 720p, 1080p, 2K, or 4K across six aspect ratios, with audio generation.

Through YepAPI you reach it on `/v1/media/queue`, billed per second — $0.36 at 720p, $0.61 at 1080p, $0.59 at 2K, and $0.87 at 4K.

Start generating in 30 seconds

$5 free credit on signup. No credit card required. Pay per call.

What developers say

“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”

Marcus T.

SEO Platform Founder

“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”

Priya S.

Full-Stack Developer

“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”

Jake R.

Indie Hacker

Frequently asked questions

Black Forest Labs' FLUX 3 Video. 5–20 second clips from 720p up to 4K with audio, six aspect ratios, and opening/closing keyframe control — from $0.36 per second.

FLUX 3 Video costs from $0.36/sec (720p) through YepAPI, billed per request with no monthly fee. For example, a 5-second clip (from lowest resolution) costs about $1.80.

Sign up at yepapi.com (Google or email, about 30 seconds), open the dashboard and create an API key. The same key works for FLUX 3 Video and every other model — no separate Black Forest Labs account or waitlist.

New YepAPI accounts in most countries get free signup credit, enough to test FLUX 3 Video without a card. After that you pay per request at the rates above — there is no subscription.

Use "black-forest-labs/flux-3-video" as the model on /v1/media/queue. The short alias "flux-3-video" also works.

Ready to use FLUX 3 Video?

$5 free credit on signup. No credit card required. Pay per call.

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