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.
| Billing | Price |
|---|---|
| Rate (720p) | $0.36/sec |
| What it costs | Per 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.
Drop image or click to upload
For image-to-video (first/last frame)
FLUX 3 Video specs
| Provider | Black Forest Labs |
|---|---|
| Model ID | black-forest-labs/flux-3-video |
| Endpoint | /v1/media/queue |
| Type | Video Generation |
| Resolutions | 720p, 1080p, 2K, 4K |
| Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 |
| Durations | 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 seconds |
| Audio | Generated with the video |
| Image input | Yes |
How to get a FLUX 3 Video API key
- 1
Create a free account
Sign up at yepapi.com with Google or email. It takes about 30 seconds and needs no card.
- 2
Create an API key
Open the dashboard, go to API Keys and create a key. Copy it — it starts with yep_sk_.
- 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
Pay as you go
Usage is billed per request from your balance. Top up any amount; there is no subscription.
Strengths
Four resolution tiers — 720p, 1080p, 2K, and 4K — priced per second from $0.36.
Guide generation with uploaded first and last frames for controlled shots.
Sixteen duration options across six aspect ratios from 21:9 to 9:16.
Generates audio with the clip so a single request returns footage with sound.
Quick start
Copy this snippet and start making calls with FLUX 3 Video.
// Step 1: Submit job
const res = await fetch('https://api.yepapi.com/v1/media/queue', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"model": "black-forest-labs/flux-3-video",
"prompt": "A slow push-in on a rain-soaked neon alley, reflections rippling in puddles, steam drifting from a vent, a lone cyclist crossing the frame",
"options": {
"aspectRatio": "16:9",
"resolution": "1080p",
"duration": "6"
}
}),
});
const { data } = await res.json();
const jobId = data.jobId;
// Step 2: Poll for result
const status = await fetch(`https://api.yepapi.com/v1/media/status/${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.
| Model | Provider | Price |
|---|---|---|
| FLUX 3 Video | Black Forest Labs | from $0.36/sec (720p) |
| Grok Imagine Video 1.5 Lite | xAI | from $0.04/sec (480p) |
| HeyGen Video | HeyGen | from $0.04/sec (480p) |
| Seedance 2.0 Mini | ByteDance | from about $0.07/sec (480p) |
| Wan 2.6 | Alibaba | from $0.08/sec (480p), $0.17/sec (720p), $0.25/sec (1080p) |
| Veo 3.1 Lite | $0.11/sec (720p), $0.17/sec (1080p); without audio from $0.06/sec | |
| Hailuo 3 Max | MiniMax | from $0.11/sec (480p) |
| Grok Imagine Video | xAI | from $0.11/sec (480p), $0.15/sec (720p) |
Why use FLUX 3 Video through YepAPI?
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.”
“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
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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