FLUX 3 Text to Video Generator
Use FLUX 3 Text to Video to turn one written scene into a short audiovisual clip on Story321. Choose 720p or 1080p, a 5–20 second duration, aspect ratio, and generated audio before you start.
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What is FLUX 3 text to video?
FLUX 3 text to video turns one written scene into a short audiovisual clip. Your prompt defines the subject, action, setting, camera direction, visual mood, and any sound cues that matter to the result.
FLUX 3 Text to Video Features
One prompt creates the scene
Write a focused FLUX 3 Text to Video brief of up to 800 characters. Include the subject, action, environment, lighting, camera behavior, and timing in one connected shot.
720p and 1080p output
Choose 720p for quick concept tests or 1080p when the scene needs more visible detail. The form starts at 720p so you can review an idea before a higher-resolution run.
Five to twenty seconds
Set a whole-second duration from 5 through 20 seconds. Begin with a short FLUX 3 Text to Video clip when testing motion, then extend the duration only when the story beat needs it.
Eight composition options
Choose Auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4, or 9:16. Pick the destination frame before writing camera instructions so the main subject has room to move.
Generated audio control
FLUX 3 can generate audio with the video. Keep audio enabled for ambience, effects, or dialogue direction in the prompt, or disable it when the edit will use a separate soundtrack.
How to Write a FLUX 3 Text to Video Prompt
Describe one visual priority
Start with the person, object, animal, or place the viewer should notice first. A clear priority gives the FLUX 3 Text to Video prompt a stable center of attention.
State the action and camera move
Say what changes in the shot: a person turns, waves move, lights appear, or a camera pushes in. Use one camera instruction such as close-up, overhead, follow shot, or slow pan.
Use details that change the frame
Add setting, lighting, color, weather, pace, and sound only when they affect the scene. Avoid unrelated requests that compete for the same five-to-twenty-second clip.
How to Generate FLUX 3 Text to Video
- 1
Write one complete scene
Describe a subject, its action, the location, lighting, and the camera. If sound matters, add concise sound or dialogue direction to the same FLUX 3 Text to Video prompt.
- 2
Set resolution and duration
Select 720p or 1080p and choose 5–20 whole seconds. A 720p, 5-second request is the default starting point for checking composition and motion.
- 3
Choose the frame and audio
Select Auto or one of seven fixed aspect ratios, then decide whether to generate audio. Match the frame to the final placement before the scene is generated.
- 4
Generate, review, and revise
Review the video for readable action, framing, pacing, and sound. Revise one instruction at a time so the next FLUX 3 Text to Video result answers a specific creative question.
FLUX 3 Text to Video Use Cases
Storyboard a scene
Turn a written shot idea into a moving reference for a treatment, storyboard, or creative review. Keep the prompt focused on one beat and a single camera viewpoint.
Explore social video concepts
Use 9:16, 1:1, or 16:9 to test different opening moments from the same written idea. Describe the first action clearly so the clip establishes its subject quickly.
Prototype product storytelling
Describe an object, material, setting, and camera reveal for an early product concept. Review brand-sensitive text, logos, and product details before publishing the output.
Create atmospheric transitions
Prompt a compact transition such as rain crossing a window, fog moving through a valley, or city lights reflecting on water. Specify movement and camera pace rather than stacking events.
Continue Your Video Workflow
AI Text-to-Video Generator
Compare Story321 text-to-video workflows for a written scene.
Explore text to videoAI Image-to-Video Generator
Start from an uploaded image when the first frame must be controlled.
Explore image to videoStory321 Pricing
Review credits before testing longer clips or 1080p output.
View pricing
Frequently Asked Questions
What is FLUX 3 text to video?
FLUX 3 text to video creates a short video from a written scene prompt. On Story321, choose resolution, duration, aspect ratio, and generated audio before submitting the request.
What should I include in a FLUX 3 Text to Video prompt?
Name the subject, action, setting, lighting, camera behavior, timing, and any sound direction that matters. Write one connected shot and keep details that do not change the frame out of the prompt.
Which FLUX 3 Text to Video settings are available?
The form offers 720p or 1080p, every whole-second duration from 5 to 20 seconds, Auto plus seven fixed aspect ratios, and an audio generation switch that is enabled by default.
Does this FLUX 3 form support negative prompts or prompt expansion?
No. This form sends the main prompt, resolution, duration, aspect ratio, and audio choice. Put useful exclusions or creative constraints directly into the main scene description.
How much does FLUX 3 text to video cost?
Story321 charges 38 credits per second at 720p and 65 credits per second at 1080p. A five-second request costs 190 credits at 720p or 325 credits at 1080p.
When should I use text to video instead of image to video?
Use text to video when the prompt should define the scene from scratch. Use image to video when an uploaded image must establish the first frame, subject placement, or visual composition.
FLUX 3 Text to Video Pricing
Credits are calculated per generated second at the selected resolution. The form calculates the FLUX 3 Text to Video total before generation.
- 720p
- 38 credits per second
- 1080p
- 65 credits per second
FLUX 3 Text to Video Specifications
| Model | Black Forest Labs FLUX.3 |
|---|---|
| Story321 workflow | Text prompt to video |
| Prompt length | Up to 800 characters |
| Video duration | 5–20 seconds in whole-second increments; 5 seconds by default |
| Resolution | 720p or 1080p; 720p by default |
| Aspect ratio | Auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4, or 9:16 |
| Audio | Generated by default; can be disabled |
| Negative prompt | Not available in this form |
| Prompt expansion | Not available in this form |
Official FLUX 3 Resources
Read the FLUX.3 model page“A multimodal model for image, video, and audio.”
Read the FLUX.3 launch article“FLUX.3 can generate highly diverse videos with audio, up to 20 seconds long in a single generation.”
Read the FLUX.3 and mimic article“FLUX.3 expands into multimodality and generates audiovisual content jointly.”
Create FLUX 3 Text to Video
Write one focused scene, select resolution, duration, framing, and audio, then create a FLUX 3 Text to Video clip on Story321. Start at 720p and five seconds to test the idea before scaling up.
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