FLUX 3 AI is an online AI video generation platform whose core model is FLUX 3—a native audio-video model that supports both text-to-video and image-to-video.
Use cases Users can quickly generate complete video clips containing action, camera movement, dialogue, ambient sound, and sound effects by entering a text prompt or uploading a starting image. It is suitable for a variety of scenarios, from creative testing to full shot production.
Key capabilities
- Synchronized audio-video generation: Describe action, camera movement, dialogue, ambient sound, and sound effects in a single prompt, and FLUX 3 generates synchronized visuals and sound on the same timeline.
- Multiple input methods: Supports text-only prompts or uploading a starting-frame image (the current fal image-to-video endpoint uses the uploaded image as the first frame).
- Duration and resolution: Each shot can be 5, 10, 15, or 20 seconds, output at 720p or 1080p, with support for five common aspect ratios.
- Native audio control: Native audio can be enabled or disabled; when disabled, only visual content is generated.
- Video extension: Existing clips can be continued beyond their current ending while preserving the subject, scene, motion, and audio direction.
- Draft and enhance: First create a draft to quickly explore composition, motion, and pacing, then enhance the selected version into higher-quality output.
How to use
- Choose text or an image as the starting point: Enter a text idea, or upload a starting-frame image for better control over the opening composition.
- Describe the visuals and sound: Write out the subject, action, camera movement, dialogue, ambient sound, and sound effects in the order they occur.
- Set the video format: Choose the aspect ratio, 720p or 1080p resolution, 5- to 20-second duration, and whether to enable native audio.
- Generate and optimize: Create the video, check the motion and audio pacing, and adjust the prompt or settings to generate the next version.
Supported file formats:
- Images: JPG, PNG, WebP, up to 20 MB
- Videos: MP4, WebM, MOV, up to 100 MB
- Audio: MP3, WAV, M4A, FLAC, up to 50 MB
Pricing The platform offers clear pricing, with the required credits displayed before generation. Users can choose a monthly subscription or a one-time top-up. Monthly subscriptions are billed monthly, grant new credits upon successful renewal, and can be canceled at any time. Different subscription tiers grant different monthly credits (for example, 120 credits/month, 330 credits/month, etc.); credits roll over, and some tiers support scaling credits up to 5x. Capacity uses the site's lowest-cost available configsettings; the actual credit consumption varies depending on the selected model and settings and is clearly displayed before generation. Failed payments are automatically refunded. New users get 10 welcome credits, which can be used to generate a 5-second 480p Wan 3.0 text-to-video.
Use cases
- Quickly test video ideas: first validate a concept with a 5-second short clip, then generate a longer version.
- Short videos that need synchronized sound: such as clips containing dialogue, ambient sound, or sound effects.
- Image-based animation: upload a starting frame to control the opening composition and generate subsequent motion.
- Video continuation: extend an existing clip while keeping the subject, scene, motion, and audio direction consistent.
- From draft to final: quickly explore composition and pacing, then enhance to a high-quality video.
Limitations
- The current information does not provide detailed information about the upper limit of free uses, specific subscription prices, detailed benefits for each tier, credit consumption rate, maximum concurrency, commercial licensing, watermark policy, content moderation rules, API access, supported languages, etc.
- Generation duration is limited to 5 to 20 seconds.
- Uploaded files have size limits (images 20 MB, videos 100 MB, audio 50 MB).
- Some advanced features (such as video extension, drafts, and enhancement) belong to the broader FLUX 3 workflow, and their specific availability may be affected by subscription tier; the information does not clearly specify this.
- Only real-time routing is optional; prompts are retained when switching.
The above information is all based on the official page description; features or details not included have not yet been provided.
