Flux 3 features and capabilities
Flux 3 is Black Forest Labs' multimodal foundation model. Rather than a separate model per output, it learns image, video, and audio together, so a single prompt can return a moving, sounding shot that behaves the way the real world does.
Black Forest Labs announced Flux 3 on July 23, 2026 and is rolling it out through early access. The capabilities below are the ones they have described; the prompting guidance that follows is general practice for a native-audio video model, and the exact levers may firm up as Flux 3 becomes widely available.
| Feature | What it does | Best for |
|---|---|---|
| Native-audio video | Generates the clip and its synchronized sound in one pass | Sound-on scenes, dialogue, effects |
| Real-world physics | Motion obeys mass and momentum; sound matches impact | Product film, action, explainers |
| Consistent characters | Holds a subject across shots from a visual reference | Sequences, series, brand work |
| Multilingual text and speech | Renders accurate on-screen text and spoken dialogue | Localized video, titles, captions |
| In-context editing | Changes one element without a full re-render | Fixing a take, targeted revisions |
| Multi-shot chaining | Links clips into a longer continuous sequence | Short films, ads, reveals |
Native-audio video
The headline is that picture and sound arrive together. Flux 3 generates each clip with synchronized native audio in the same pass, so an impact, footstep, or spoken line is already tied to the action instead of layered on after. Name the sound you want in the prompt, and set a language when the scene has dialogue.
Real-world physics
Flux 3 learns motion, mass, and sound as one system, so weight, momentum, and collisions follow real rules and materials keep their look as the camera moves. Describe how the motion evolves across the shot, and the physics reads as filmed rather than drifting.
Consistent characters
Supply a clear visual reference and Flux 3 carries the same face, clothing, and look from shot to shot. Reuse that reference across cuts to hold a character through a sequence that runs for minutes, which is what keeps a series recognizable rather than resetting each scene.
Multilingual text and in-context editing
Text rendering improves significantly over earlier Flux, including accurate on-screen text in multiple languages, so a title card reads right without a separate pass. Editing is targeted: change one element of a frame, or carry a subject from a source clip into a new scene, and the rest stays intact.
Flux 3 use cases
Native-audio scenes
A clip returns with its sound already synced, so an effect or a spoken line lands with the action instead of a silent take you fix later.
Product and brand film
Reflections, weight, and materials stay honest as the camera moves, so a pour, a rotation, or a drop reads as filmed rather than simulated.
Multi-shot sequences
Chain clips into a longer scene and hold one character across every cut with a visual reference, so a sequence stays consistent.
Localized video
Multilingual dialogue and accurate on-screen text let one scene ship in several languages, no separate title or voice pass needed.
Image generation and editing
Synthesize across styles and aspect ratios, render crisp text, then edit one region in place without re-rolling the whole image.
Explainers with real physics
Gravity, collisions, and motion follow real rules, so how-it-works footage stays accurate while it stays clean.
How to prompt Flux 3
Write the prompt as a short shot brief, not a caption. Run through SPACE, and because Flux 3 makes sound with the picture, always include one audio cue.
| SPACE | Include | Example |
|---|---|---|
| Subject | Who or what is in frame, described concretely | A courier in a red rain jacket |
| Performance | The motion: what the subject does, and how | She weaves between market stalls, breath fogging |
| Ambience | Setting, time of day, and light | A rain-soaked night market, wet stone underfoot |
| Camera | Shot type plus one move | Low tracking shot, a steady push-in |
| Extra cues | Audio, language, pacing | Rain and distant chatter, one spoken line in Japanese |
Common mistakes
- Describing a still. A video model needs motion over time, not a photograph in words.
- Forgetting the sound. Flux 3 generates audio, so name the effect, ambience, or line you want.
- Cramming a sequence into one prompt. Keep one clear action per take, and chain clips for length.
- Leaving references unlabeled. Say what each reference is for so the model knows which one drives the scene.
For the full capability list and specifications, see the Flux 3 model page.