FLUX 3 Draft
The rapid-iteration tier of Black Forest Labs' FLUX 3 video model. FLUX 3 Draft generates 720p text-to-video previews at $0.06 per second — about a third of the standard FLUX 3 rate — with the same 5-20 second durations, synchronized audio, and eight aspect ratios. Iterate cheaply, then re-run the winning prompt on FLUX 3 for the full-quality final.
Duration
Duration of the video in seconds (5-20). Billed per second.
Resolution
Output resolution.
Aspect Ratio
Aspect ratio of the generated video. 'auto' lets the model choose from your prompt and inputs.
Audio
Generate synchronized audio (ambient sound, speech, effects). Off for a silent clip.
Moderation
Moderation strictness, 0 (strictest) to 4 (most permissive). Runs with image inputs are capped at 2 by the model.
Your result renders here.
Use FLUX 3 Draft via the API
Generate with FLUX 3 Draft from your own code. Async by design: submit a generation, get a run id back instantly, poll until it completes. Billed in credits at the best available provider price — from $0.06 per second.
1 — Start a generation
curl -X POST https://app.scenetra.com/api/v1/generate/flux-3-draft-t2v \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt":"A red fox trots through fresh snow at dawn, low sun behind the trees, slow tracking shot, soft wind and crunching snow","duration":"5","resolution":"720p"}'Response (202)
{
"runId": "run_abc123",
"status": "PENDING",
"model": "flux-3-draft-t2v",
"estimatedCredits": 300,
"statusUrl": "/api/v1/runs/run_abc123"
}2 — Poll until COMPLETED (every 2-5 seconds)
curl https://app.scenetra.com/api/v1/runs/run_abc123 \
-H "Authorization: Bearer YOUR_API_KEY"Response
{
"runId": "run_abc123",
"status": "COMPLETED",
"progress": { "completed": 1, "total": 1 },
"outputs": [
{ "type": "video", "url": "https://images.scenetra.com/..." }
],
"error": null,
"estimatedCredits": 300
}Request fields
| Field | Type | Description | Default |
|---|---|---|---|
| prompt* | string | Describe the scene, action, camera movement, and any audio you want. Plain language works; the prompt is interpreted, not matched. | — |
| duration | string | Duration of the video in seconds (5-20). Billed per second.5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 | 5 |
| resolution | string | Output resolution. | 720p |
| aspect_ratio | string | Aspect ratio of the generated video. 'auto' lets the model choose from your prompt and inputs.auto · 21:9 · 2:1 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16 | auto |
| generate_audio | string | Generate synchronized audio (ambient sound, speech, effects). Off for a silent clip.false · true | true |
| safety_tolerance | string | Moderation strictness, 0 (strictest) to 4 (most permissive). Runs with image inputs are capped at 2 by the model.0 · 1 · 2 · 3 · 4 | 4 |
| callbackUrl | string (https URL) | Optional. When the run finishes (completed or failed), we POST the final run status to this URL — same shape as the poll response, plus model, params, and chargedCredits. Best-effort; polling remains the source of truth. | |
Unknown fields are rejected with a helpful 400. Media fields take https URLs. There is no provider parameter — every run is routed to the cheapest capable provider automatically.
Good to know
Billing
Runs bill your account credits at provider cost with 0% markup. The submit response includes the credit estimate; failed generations are refunded automatically. Add ?dryRun=1 to get the estimate without running anything.
Errors
Errors are always { "error": { "code", "message" } } with stable codes: unauthorized, model_not_available, invalid_parameter, insufficient_credits, rate_limited. A failed run is not an HTTP error — poll responses report status: "FAILED" with the reason.
What makes FLUX 3 Draft different
FLUX 3 quality signals at a third of the price
FLUX 3 Draft is Black Forest Labs' fast preview tier of FLUX 3: the same prompting behavior, the same 5-20 second durations, and the same synchronized audio, rendered at 720p for $0.06 per second instead of $0.17. A 5-second draft costs $0.30 — cheap enough to generate a handful of takes per idea without watching the meter.
Built for iteration loops
Video prompting is trial and error: the motion, the pacing, and the camera rarely land on the first take. Draft pricing changes the economics of that loop — ten 5-second drafts cost $3.00, less than two standard 1080p takes. Explore wide, discard freely, and only pay full rate for the shot you keep.
Audio and every aspect ratio, still included
Drafts aren't stripped down: synchronized ambient sound, speech, and effects are generated at no extra charge, and all eight aspect ratios from 21:9 ultrawide to 9:16 vertical are available — so you can preview the real framing and the real soundscape, not an approximation of them.
One board, draft to final
On Scenetra, FLUX 3 Draft and FLUX 3 are separate nodes on the same canvas. Iterate on the Draft node until the take works, then paste the prompt into a FLUX 3 node and render the final at 720p or 1080p. Everything is pay-per-generation at provider cost with 0% markup — no subscription tier decides which model you're allowed to use.
Parameters
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt* | text | Describe the scene, action, camera movement, and any audio you want. Plain language works — the prompt is interpreted and expanded before generation. | — |
| Duration | select | Duration of the video in seconds (5-20).5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 | 5 |
| Resolution | select | Output resolution (draft tier renders at 720p). | 720p |
| Aspect Ratio | select | Aspect ratio of the generated video. Auto lets the model choose from your prompt and inputs.Auto · 21:9 · 2:1 · 16:9 · 4:3 · 1:1 · 3:4 · 9:16 | auto |
| Generate Audio | select | Generate synchronized audio (ambient sound, speech, effects). Off for a silent clip.false · true | true |
| Safety Tolerance | select | Moderation strictness, 0 (strictest) to 4 (most permissive). Runs with image inputs are capped at 2 by the model.0 · 1 · 2 · 3 · 4 | 4 |
Pricing
From $0.06 per second
Pay per generation — only pay for what you use.
720p draft
$0.06/s
per second
Audio
included
per second
What a video costs
| Duration | 720p |
|---|---|
| 5 seconds | $0.30 |
| 10 seconds | $0.60 |
Use cases
Prompt development
- Cheap A/B takes per idea
- Camera-move experiments
- Pacing and duration tests
- Audio direction previews
Storyboarding
- Animatics from script lines
- Shot-list previz on a budget
- Scene blocking in motion
- Client-review rough cuts
Social content
- High-volume clip drafts
- Vertical 9:16 test posts
- Trend-response quick takes
- Concept validation before finals
Agencies & teams
- Pitch mockups in motion
- Multiple directions per brief
- Budget-safe exploration
- Draft reels for approval
Frequently asked questions
What is FLUX 3 Draft?+
FLUX 3 Draft is the fast, low-cost preview tier of FLUX 3, Black Forest Labs' video model. It generates 5-20 second text-to-video clips at 720p with synchronized audio for $0.06 per second — about a third of the standard FLUX 3 720p rate. On Scenetra it runs as its own node in the visual workflow editor.
How much does FLUX 3 Draft cost?+
$0.06 per second of output video: a 5-second draft is $0.30 and a 10-second draft is $0.60. Audio is included in the rate. Scenetra bills every generation at provider cost with 0% markup, from a pay-per-generation credit balance.
What's the difference between FLUX 3 Draft and FLUX 3?+
Draft renders at 720p only and trades some output quality for speed and price — $0.06 per second versus $0.17 (720p) or $0.29 (1080p) on the standard model. Durations, aspect ratios, audio, and prompting are the same. The intended workflow is to iterate on Draft and render the keeper on FLUX 3.
Does FLUX 3 Draft generate audio too?+
Yes — synchronized ambient sound, speech, and effects are generated with every draft at no extra cost, so you can judge the full audiovisual result before committing to a standard-quality render. A toggle turns audio off for silent clips.
Can FLUX 3 Draft make videos longer than 10 seconds?+
Yes — like standard FLUX 3, Draft supports any duration from 5 to 20 seconds in one-second steps. At $0.06 per second, even a maximum-length 20-second draft is only $1.20.
Is FLUX 3 Draft good enough to publish, or only for testing?+
It's positioned as a preview tier, and for final deliverables the standard FLUX 3 output at 720p or 1080p is the better choice. That said, drafts are real 720p clips with audio — for internal reviews, animatics, and fast-turnaround social tests, many teams ship them as-is.
Can I try FLUX 3 Draft free?+
FLUX 3 Draft is a paid model: $0.30 for a 5-second draft, with no subscription gate — you pay only for what you generate.
Related models
FLUX 3
Black Forest Labs' flagship video model. FLUX 3 generates 5-20 second clips with synchronized audio from a plain-language prompt — the model interprets and expands your description before generation, so director-level results don't require director-level prompting. Output at 720p or 1080p in eight aspect ratios from 21:9 ultrawide to 9:16 vertical.
View model →Seedance 2 Fast
ByteDance's Seedance 2 Fast is the quick, lower-cost tier of Seedance 2 — cinematic text-to-video with synchronized audio at a cheaper per-second rate. Pick any duration from 4 to 15 seconds at 480p or 720p, with audio included in the price, and iterate faster than on the full model.
View model →Wan 3.0
Alibaba's Wan 3.0 generates up to 30 seconds of video in a single take, with native synchronized audio — dialogue, sound effects, and music — produced in the same pass as the picture. Pick any duration from 2 to 30 seconds, output at 480p, 720p, or 1080p, and choose from five aspect ratios or let the model frame the shot automatically.
View model →Grok Imagine Video 1.5
xAI's Grok Imagine Video 1.5 turns a text prompt into a video with synchronized audio generated in the same pass — no separate sound step and no audio surcharge. Choose any duration from 1 to 15 seconds, three resolutions from 480p to 1080p, and eight aspect ratios from widescreen 16:9 to vertical 9:16.
View model →Start creating with FLUX 3 Draft
Use FLUX 3 Draft alongside 50+ other AI models in Scenetra's visual workflow editor. No setup required.
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