Brittany MasloFLUX 3 is Black Forest Labs’ multimodal foundation model — the biggest jump in the FLUX family since the original image models. Instead of treating image, video, and audio as separate pipelines, FLUX 3 learns them together under a Self-Flow architecture, so motion, sound, and visual structure stay aligned.
On July 23, 2026, Black Forest Labs opened Early Access for FLUX 3 Video. You can try it online through Topview’s FLUX 3 AI Video Generator without setting up local GPUs or chasing API keys.
This guide covers what FLUX 3 is, why it matters, and exactly how to generate your first clips on Topview.
What Is FLUX 3?
FLUX 3 is a multimodal flow-matching model from Black Forest Labs (the frontier lab founded by members of the original Stable Diffusion team). Earlier FLUX models were best known for image generation. FLUX 3 expands that into a unified backbone for:
- Video + native audio in one generation pass
- Image synthesis and editing (Image Early Access rolling out after Video)
- Action prediction for physical AI / robotics partners (FLUX-mimic / FLUX 3 Action)
The core idea is simple: a still image captures spatial structure, video restores time, and audio reveals cause and effect. Training those modalities together produces more coherent clips — footsteps that match footfalls, dialogue that syncs with mouths, impacts that land with the right sound.
Self-Flow in plain English
Self-Flow is Black Forest Labs’ method for aligning multimodal generation and understanding in one architecture. FLUX 3 scales that approach across video, image, and audio simultaneously. For creators, the practical outcome is less “silent video + soundtrack glued on later,” and more “picture and sound born together.”
FLUX 3 Key Capabilities
Video generation (available now in Early Access)
- Text-to-video with native audio
- Image-to-video (animate a still or use it as visual reference)
- Video-to-video / video reference for character carry-over
- Keyframe-to-video for controlled transitions
- Video-audio continuation
- Multilingual dialogue and expressive facial performance
- Up to 20-second clips in a single generation
- High style diversity: camcorder realism, animation, cinematic looks, motion typography
Image generation (coming soon)
- Multi-style synthesis and editing
- Stronger complex-prompt handling than earlier FLUX versions
- Improved multilingual text rendering in images
- Multiple aspect ratios and resolutions
Action / physical AI
- Action prediction through selected partners
- FLUX-mimic robotics path for manipulation tasks
On Topview today, the creator-facing experience focuses on FLUX 3 Video: text, image, and video-reference workflows with native audio.
Why Creators Care: Early Preference Signals
Black Forest Labs published preliminary preference results for FLUX 3 Video using 10-second text-to-video clips at 720p with audio. These are early evaluations — useful as directional signals, not final leaderboards.
Reported early preference rates for FLUX 3 vs other models included strong showings against several frontier video systems, with particular callouts for:
- Human facial expressions
- Associating sounds with physical events
- Multilingual capabilities
- Character consistency across multi-shot sequences
Treat those numbers as a starting point. The real test is your own prompts on Topview.
How to Use FLUX 3 on Topview (Step by Step)
Topview is one of the easiest ways to try FLUX 3 online: browser-based, no local install, and a generator UI designed for marketers and creators.
Step 1: Open the FLUX 3 generator
- Go to https://www.topview.ai/flux-3
- Sign in or create a Topview account (Google sign-in works for most users)
- Open the FLUX 3 AI Video Generator interface
- Confirm the model selector shows FLUX 3
You can also enter through Topview’s AI video generator and select FLUX 3 from the model list.
Step 2: Choose an input mode
FLUX 3 on Topview supports three practical starting points:
| Mode | When to use it |
|---|---|
| Text to Video | You want a new scene from a prompt alone |
| Image to Video | You already have a hero still and want motion + audio |
| Video Reference | You need character / motion continuity from an existing clip |
For first tests, start with Text to Video. Once you have a winning still or character look, move to Image / Video reference for control.
Step 3: Write a multimodal prompt
Describe more than visuals. Because FLUX 3 generates native audio, include:
- Subject and action
- Environment and lighting
- Camera move
- Dialogue or ambient sound
- Style (cinematic, handheld, animation, etc.)
Example (basic):
A golden retriever running through a field of sunflowers at sunset. Camera follows from behind. Warm cinematic lighting. Sound of wind rustling through flowers and paws hitting dry grass.
Example (advanced):
Close-up of a barista’s hands pouring steamed milk into a latte, forming a rosetta. Camera slowly pulls back to a cozy coffee shop with rain outside the window. Soft jazz, espresso machine hiss, rain tapping on glass. Natural handheld micro-movement.
On the Topview UI, prompts support long descriptions (up to thousands of characters), so you can be specific without cramming everything into one vague sentence.
Step 4: Add references (optional but powerful)
- Image reference: upload a still to lock composition, product look, or character appearance
- Video reference: carry identity / motion into a new scene
- Keep references clean: clear subject, good lighting, minimal clutter
This is where FLUX 3’s multimodal design pays off. You are not forcing a silent I2V tool to invent audio later — the model plans picture and sound together.
Step 5: Set generation parameters
In the Topview FLUX 3 interface, configure:
- Resolution: e.g. 720p during Early Access workflows
- Aspect ratio: 16:9 for YouTube / landscape; use vertical ratios when available for TikTok / Reels
- Duration: up to 20 seconds per generation
- Review credit cost before you hit generate
Step 6: Generate, review, download
- Click generate and wait for the job to finish
- Preview picture and audio together
- Check for lip sync, sound-event timing, and identity consistency
- Download winners, or iterate with a tighter prompt / new reference
If the clip is close but not perfect, change one variable at a time: camera language, audio description, or reference image — not all three at once.
Prompt Writing Tips for FLUX 3
Do this
- Be concrete: subject + action + environment + light
- Specify style and lens language (close-up, tracking shot, slow pullback)
- Describe sound intentionally — ambience, SFX, dialogue language
- Use a simple timeline: beginning → middle → end
- Keep one primary action per 10–20s clip
Avoid this
- One-line vague prompts (“make a cool cinematic video”)
- Stacking unrelated events into a single short clip
- Ignoring aspect ratio when composition matters
- Expecting a one-pass 20s clip to replace a full edited short film
- Over-constraining with conflicting styles in the same sentence
Bonus pattern for marketers
Structure prompts like an ad beat:
- Hook visual (0–3s)
- Product / benefit moment
- Audio cue that reinforces the payoff
- Clean end frame for text overlay or CTA in edit
Advanced Workflows Worth Trying
1) Image-to-Video product reveals
Generate or upload a strong product still, then animate it with FLUX 3. Describe lighting shifts, subtle camera push-ins, and matching SFX (cap click, liquid pour, fabric rustle).
2) Character-consistent multi-shot storytelling
Create shot A with a clear character. Use video reference / V2V carry-over for shot B in a new environment. FLUX 3’s early strengths include identity continuity across chained clips — useful for micro-stories and UGC-style narrative ads.
3) Keyframe-controlled transitions
Define key moments, then let the model interpolate. This helps when you need a controlled reveal rather than random camera drift.
4) Multilingual dialogue clips
Write dialogue language explicitly in the prompt. Early evaluations highlight multilingual performance — valuable for localized social creatives without a separate VO pipeline.
5) Motion typography and stylized design
FLUX 3 is noted for stronger typography and animated design output. Try title cards, kinetic text moments, and branded motion bumpers.
FLUX 3 vs Typical AI Video Tools
| Capability | Typical video model | FLUX 3 |
|---|---|---|
| Model scope | Video-only (or bolted-on audio) | Unified multimodal foundation |
| Audio | Separate soundtrack step | Native audio in one pass |
| Max single-pass clip | Often shorter / multi-pass | Up to 20s |
| Inputs | Mostly text or start frame | Text, image, and video references |
| Character continuity | Weak across shots | Stronger V2V / multi-shot chaining |
| Dialogue | Limited / uneven | Multilingual strengths called out early |
| Image sibling | Separate image stack | Same backbone (Image EA coming) |
Why Use Topview for FLUX 3?
- Zero setup: run in the browser
- No BFL developer account required to start testing
- Creator-friendly UI: model select, prompt, references, duration, aspect ratio
- Fast iteration: generate, preview audio+video together, download
- Fits broader Topview workflows: move from concept clips into marketing / board-based production
Who Should Try It First?
- Filmmakers and storytellers testing dialogue-heavy beats
- Brand and performance marketers needing hooks with sound in one pass
- Social / UGC creators shipping short vertical concepts
- Motion designers exploring typography and style range
- Agencies prototyping multi-shot sequences before full production
Roadmap Snapshot
According to Black Forest Labs’ public rollout:
- FLUX 3 Video — video + audio generation/editing (Early Access now)
- FLUX 3 Action — action prediction with selected partners
- FLUX 3 Image — image synthesis/editing Early Access in the following weeks
- FLUX 3 Dev — open-weight multimodal backbone later
Availability on Topview may expand as Image Early Access opens. Video is the place to start today.
FAQ
Can I try FLUX 3 online without a local GPU?
Yes. Use Topview’s FLUX 3 generator in your browser.
How long can a FLUX 3 video be?
Up to about 20 seconds in a single generation. Longer stories can be built by chaining clips.
Does FLUX 3 include audio automatically?
Native audio is a core design point: sound is generated jointly with video, not as an afterthought soundtrack.
What input types work on Topview?
Text prompts, optional image references, and video references for continuity / animation workflows.
Is FLUX 3 Image available yet?
Video Early Access is live first. Image Early Access was announced to follow in the coming weeks.
Is this the same as older FLUX image models?
No. Earlier FLUX models were primarily image-focused. FLUX 3 is a multimodal foundation model spanning video, audio, image, and action paths.
Final Takeaway
FLUX 3 is not just “another text-to-video model.” It is Black Forest Labs’ bet on multimodal visual intelligence: picture, motion, and sound learned together. If you want the fastest practical way to test that claim, open Topview’s FLUX 3 page, write a prompt that includes both visuals and audio, generate a 10–20s clip, and listen as carefully as you watch.
Build the scene. Describe the sound. Generate once — then iterate.
