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Black Forest Labs — Launched July 23, 2026

FLUX 3 Prompt Generator

The FLUX 3 prompt generator gives you 20 free, copy-ready prompts for Black Forest Labs' new multimodal AI — text-to-video up to 20 seconds with native synchronized audio. First dedicated FLUX 3 prompt library. No signup needed.

What Is the FLUX 3 Prompt Generator?

The FLUX 3 prompt generator on this page gives you 20 professionally written, copy-ready prompts for Black Forest Labs' first multimodal AI model — a unified architecture that generates images, video (up to 20 seconds), and native synchronized audio from a single prompt. FLUX 3 launched on July 23, 2026, and is currently in early access at bfl.ai/models/flux-3.

FLUX 3 is a significant shift for Black Forest Labs, known for the widely used FLUX 2 image model. Rather than a separate video product, FLUX 3 is a single architecture trained jointly on images, video, and audio — meaning you describe motion and sound together in one prompt and receive a clip where the audio is generated in sync with what you see, not dubbed on afterward.

Every prompt below is written for FLUX 3's multimodal input format — motion direction, timing, audio description, and visual style are all combined into a single coherent instruction. These prompts also work with other leading video AI tools like Sora 2, Kling 3, and Grok Imagine Video.

How to Use These FLUX 3 Prompts

Text-to-Video (FLUX 3 Video):

  1. Go to bfl.ai/models/flux-3 and sign in
  2. Select "Text to Video" from the generation type
  3. Copy any FLUX 3 prompt from this page
  4. Paste into the prompt field and set duration (up to 20s)
  5. Generate — native audio is included automatically

Image-to-Video or Video Continuation:

  1. Upload your reference image or existing video clip
  2. Copy a prompt and add or remove motion details to match your image
  3. Describe the audio you want alongside the motion
  4. Adjust start/end frame if using video continuation
  5. Chain clips together to build sequences longer than 20 seconds
FLUX 3 prompt structure: [scene description + camera movement] + [motion timing: slow / fast / timelapse] + [Native audio: specific sounds] + [duration hint: 20 seconds] + [technical: 4K, lens type, colour grade]

20 Free FLUX 3 Prompts — Copy & Paste

Click any prompt to copy — optimised for FLUX 3, also works with Sora 2, Kling 3, Runway Gen-4.5, and Grok Imagine Video

1. Cinematic Mountain Time-Lapse

Landscape

A sweeping cinematic time-lapse of jagged mountain peaks at golden hour — the sun descending behind a ridgeline, long amber shadows stretching across alpine meadows, wisps of cloud drifting in fast motion below the peaks, a lone eagle circling in slow motion against the accelerated sky. Native ambient audio: wind through grass, distant thunder rolling in from the west, birds calling at dusk. 20 seconds, 4K, wide panoramic frame, no camera shake.

2. Urban Neon Rain Walk

Street

A slow-motion street-level video following a person walking through a Tokyo back-alley in the rain at night — neon kanji signs reflecting in wet asphalt, rain droplets catching the pink and blue light, steam rising from a ramen stall, the subject's silhouette reflected in a puddle. Native audio: rain on pavement, distant traffic, the hiss of a wok from inside the stall. 20 seconds, shallow depth of field, cinematic colour grade.

3. Product Reveal — Luxury Watch

Product

A luxury watch product reveal video — the watch emerging from soft blue-grey smoke on a black mirrored surface, close-up rotating slowly to reveal dial details (hour markers, lume hands, sapphire crystal), light raking across the bracelet links, ending on a wide reveal shot with the brand name appearing in gold serif text. Native audio: a single clear piano note, soft whoosh on the smoke, ambient silence. 20 seconds, macro lens feel, perfect studio lighting.

4. Ocean Storm Rolling In

Nature

A dramatic coastal video of a storm rolling toward shore — dark cumulonimbus clouds building on the horizon, the sea turning from grey-green to steel-black, white foam crashing against sea-stacked rocks in slow motion, rain beginning to streak the frame in the final seconds, lightning flickering in the far clouds. Native audio: waves crashing, deep rumble of distant thunder, wind rising, seagulls fleeing. 20 seconds, wide cinematic frame, desaturated dramatic grade.

5. Dance Studio Mirror

Performance

A ballet dancer warming up alone in a sunlit studio — side-light from tall windows casting long shadows, the dancer moving through slow arabesque sequences reflected in a full-wall mirror, dust motes drifting in the light, ending in a held pose with the mirror showing both front and back simultaneously. Native audio: piano rehearsal tape playing softly, the dancer's breath, fabric swishing, the soft thud of pointe shoes. 20 seconds, 4K, documentary realism.

6. Kitchen — Caramelising Onions

Food & Culinary

A close-up, slow-motion video of onions caramelising in a cast-iron pan over a flame — the onions softening from white to golden to deep amber over the 20 seconds, steam rising, butter melting along the edges, the pan surface glistening as the sugars develop, a hand occasionally stirring with a wooden spoon. Native audio: the sustained sizzle, the crackle of butter, a subtle low hiss of the flame. Warm 4K, overhead plus side angle cuts.

7. Sci-Fi Corridor Walk

Sci-Fi

First-person POV walking through a dimly lit space-station corridor — hexagonal wall panels glowing faint blue, emergency red lights pulsing at junctions, the visor of the suit reflected in the helmet display overlay, a door sliding open to reveal a vast viewport overlooking a ringed planet. Native audio: the low hum of life support systems, visor breathing, the magnetic click of boots on metal, distant machinery. 20 seconds, cinematic sci-fi colour palette.

8. Underwater Kelp Forest

Nature

A serene underwater video drifting through a California kelp forest — towering amber kelp fronds swaying gently in the current, shafts of sunlight refracting and dancing on the sandy floor, a leopard shark gliding in the mid-ground, a school of garibaldi fish flashing orange near the surface. Native audio: the muffled underwater ambience, soft bubbles, distant whale-call echo. 20 seconds, wide angle, cool green-gold palette.

9. Fashion Editorial — Wind Machine

Fashion

A fashion editorial video with a model in a floor-length ivory silk dress standing before a clean white cyclorama — a wind machine creating dramatic fabric movement in waves, strands of hair catching the light, the fabric billowing in slow motion against the white background, the model's pose holding still while fabric wraps and releases. Native audio: the soft rush of wind, silk fabric swooshing, ambient studio silence. 20 seconds, high-key lighting, editorial clean grade.

10. Campfire Night — Forest

Atmosphere

An intimate campfire video in a pine forest at night — orange and amber flames dancing low in a stone ring, embers rising and cooling in the dark, silhouettes of pine trees fading into the black background, a pair of hands reaching toward the warmth, sparks floating upward. Native audio: crackling fire, the pop of sap, a distant owl call, wind moving through pines. 20 seconds, low exposure, warm amber grain, real-fire natural light only.

11. Timelapse — Flowers Blooming

Nature

A macro timelapse of a red ranunculus bud slowly unfurling to full bloom against a soft sage-green background — petals peeling back one by one in delicate spirals, stamens revealing themselves, the entire bloom completing in 20 seconds, a final close-up on the fully open flower with morning light catching the translucent petals. Native audio: a soft ambient tone, the faintest paper-thin rustle of petals. 4K macro, clean studio light, no music.

12. Boxing Gym Training

Sport

A slow-motion video inside a boxing gym at dusk — a fighter working a heavy bag, gloves thudding in rhythmic combinations, sweat catching the warm overhead light, the bag swaying back and then the fighter stepping in again, dust motes in the shafts of light from high windows, ending on a held breathing moment. Native audio: leather on canvas thuds, the chain rattling, laboured breathing, the murmur of other fighters in the background. 20 seconds, desaturated gritty grade.

13. Coffee Pour — Latte Art

Lifestyle

An overhead slow-motion video of a barista pouring steamed milk into a double espresso — the white milk meeting the crema in swirling patterns, a tulip latte art design forming in the final seconds, steam rising from the ceramic cup, the barista's hands steady and precise. Native audio: the gentle pour, a soft sizzle of steam, the quiet ambience of a cafe. 20 seconds, overhead 4K, warm natural light, shallow depth of field on the cup surface.

14. Urban Rooftop Sunset

Urban

A 20-second video from a Brooklyn rooftop at magic hour — the Manhattan skyline glowing amber and coral behind water towers and rooftop chimneys, a pigeon flock wheeling in a wide arc against the peach sky, the last sliver of sun disappearing behind a glass tower, city lights beginning to appear in the windows below. Native audio: distant traffic hum, the wing-beat rush of pigeons passing, a faraway siren, ambient city drone. Cinematic wide frame, warm sunset grade.

15. Ancient Library — Dust and Light

Atmosphere

A slow push through an ancient stone library — towering wooden bookshelves lined with leather-bound volumes, shafts of dusty light falling from high arched windows, a wooden ladder on rails, the camera drifting past an open tome on a reading stand with illuminated manuscript pages, candlelight flickering in sconces. Native audio: the creak of the wooden floor, distant wind through stone, the soft flutter of a page turning. 20 seconds, warm amber and sepia grade, no people.

16. Electric Vehicle Launch

Automotive

A cinematic product video of a black electric sports car on a wet midnight runway — rain-soaked asphalt reflecting the underlit car body, the car launching from standstill in near-silence (only a high-pitched electric whine), headlights cutting through rain ahead, the rear end kicking out a spray of water in the final seconds. Native audio: the EV electric whine rising, rain on the runway, water spray. 20 seconds, low camera angle, deep black colour grade, anamorphic lens flare.

17. Monastery Morning Bells

Cultural

A misty morning video at a Tibetan monastery — monks in saffron robes walking single file across a stone courtyard as dawn light breaks over the mountains, butter lamps flickering in a row along a wall, prayer flags undulating in the mountain breeze, a monk ringing a bronze bell at the edge of the frame. Native audio: the deep resonant bell tone sustaining, fabric of the robes in the wind, distant chanting from inside, gravel underfoot. 20 seconds, muted cool-warm palette, documentary realism.

18. Wildfire Embers at Night

Dramatic

A dramatic aerial-style video drifting over a pine forest at night where controlled burn embers glow in the dark — thousands of small orange points of light among black silhouetted trees, smoke drifting in visible layers catching the ember-light below, the camera moving slowly forward over the glowing landscape. Native audio: the low roar of fire in the distance, crackling, wind moving through the smoke. 20 seconds, dark and atmospheric, no sky visible, ember-lit palette only.

19. Vinyl Record — Turntable Close-Up

Lifestyle

A close-up video of a vinyl record spinning on a turntable — the needle sitting in the groove, the label rotating in the centre, ambient room light catching the grooves in rainbow diffraction patterns, a hand carefully placing the tonearm down in the first seconds, the crackle of the record beginning. Native audio: the crackle and hiss of the vinyl start, a warm jazz melody beginning (diegetic, from the record), turntable motor hum. 20 seconds, warm low-lit interior, shallow DOF on the needle.

20. Glass Shattering — Ultra Slow Motion

Experimental

An ultra slow-motion video of a crystal wine glass shattering from a single tap — the fracture beginning at the point of impact and radiating outward in fine lines before the glass explodes into hundreds of spinning shards suspended in mid-air, light diffracting through the fragments, the shard cloud expanding outward and beginning to fall. Native audio: the single high tap, then the deep resonant crack extending into the ringing harmonic sustained across the entire 20 seconds. Clean white background, 4K, macro lens.

FLUX 3 vs Other AI Video Models (2026)

How FLUX 3 compares to the leading video AI models on the key dimensions that matter for prompt creators:

Model Max Length Native Audio Best For
FLUX 3 (BFL) 20s (chainable) ✅ Unified — generated in the same pass as the video Sound-critical scenes, multi-reference compositing, open-weight workflow
Sora 2 (OpenAI) Up to 2 min ⚠️ Added post-generation Long narrative sequences, ChatGPT integration, story-driven content
Runway Gen-4.5 60s ✅ Native (added June 2026) Fastest generation time, 20+ cinematic camera controls, real-time previews
Kling 3 3 min ✅ Native Longest clips, action/sport sequences, consistent character motion
HappyHorse 1.1 30s ✅ Native + multilingual lip-sync #2 video leaderboard, dialogue scenes, multilingual content
Veo 4 (Google) 60s+ ✅ Native Highest photorealism, 4K output, Google Workspace integration

FLUX 3 Prompting Tips for Better Results

Do This:

  • Describe audio explicitly — write "Native audio: [sounds]" as FLUX 3 is designed to receive it
  • Specify motion speed: "slow motion," "timelapse," "real-time" helps the model calibrate pacing
  • Add "20 seconds" at the end — the model respects duration hints for pacing
  • Describe camera movement separately from subject movement for cleaner results
  • Mention lighting direction and colour grade — FLUX inherited strong visual understanding from FLUX 2
  • For audio-sync shots, name the sound event at the exact visual moment ("the bell rings as the monk lifts his arm")

Avoid This:

  • Very long dialogue sequences — FLUX 3 excels at ambient and atmospheric audio, not extended speech
  • Mixing too many audio sources at once — pick 2–3 specific sounds for the clearest sync
  • Vague motion descriptors like "movement" — be specific: "slow zoom in," "panning left," "handheld"
  • Requesting "no audio" explicitly unless you genuinely want a silent clip — omit audio description instead
  • Over-specifying technical parameters you don't need — FLUX 3 defaults are high quality
  • Crowd scenes with many speaking individuals simultaneously — individual voice sync is unreliable

Frequently Asked Questions — FLUX 3 Prompts

What is FLUX 3?

FLUX 3 is a multimodal AI foundation model developed by Black Forest Labs (BFL), the team behind the original FLUX.1 and FLUX 2 image models. Released on July 23, 2026, FLUX 3 is BFL's first model to move beyond still images — it generates video clips up to 20 seconds long with native, synchronized audio from text prompts, uploaded images, or existing video clips. FLUX 3 Image and FLUX 3 Action (robotics) are planned to follow in the coming weeks under the same unified architecture.

How do I use the FLUX 3 prompt generator?

FLUX 3 is currently in early access at bfl.ai/models/flux-3. To use the prompts on this page: open the FLUX 3 interface, select 'Text to Video' or 'Image to Video' depending on your starting point, copy any prompt from this page, paste it into the prompt field, and generate. For image-to-video, upload your reference image first and then paste the prompt to describe the motion and audio you want. Each prompt on this page is written to work best with FLUX 3's multimodal understanding of movement, timing, and audio description.

Does FLUX 3 generate video with sound?

Yes — native synchronized audio is one of FLUX 3's headline features. Unlike most video AI models that generate silent clips and require a separate audio step, FLUX 3 learns the relationship between visual content and sound within the same unified architecture. This means you can describe audio alongside motion in a single prompt and receive a clip where the sound is generated to match what's happening on screen — rain when it's raining, steel-on-steel when metal strikes, music where music belongs.

How long can FLUX 3 video clips be?

FLUX 3 Video currently generates clips up to 20 seconds in early access. Clips can be extended and chained together for longer sequences. The model also supports video continuation from an existing clip, letting you extend a generated scene past the initial 20-second window into longer composite videos.

How does FLUX 3 compare to Sora 2 and Runway Gen-4.5?

FLUX 3 competes directly with Sora 2 (OpenAI) and Runway Gen-4.5 in the premium multimodal video segment. FLUX 3's primary differentiators are its unified audio generation (no separate TTS or sound-design step), its image-to-video and video continuation capabilities, and BFL's open-weight commitment (a Dev tier is planned). Sora 2 currently supports longer clips (up to 2 minutes) and has deeper ChatGPT integration. Runway Gen-4.5 leads on real-time generation speed and cinematic camera controls. FLUX 3's edge is audio fidelity-to-visual and multi-reference compositing inherited from the FLUX family.

Is FLUX 3 free to use?

FLUX 3 is currently in paid early access at bfl.ai. BFL has confirmed a free open-weight Dev tier is planned for later in 2026 — the same release strategy they used for FLUX.1 Dev, which became one of the most-used open-weight image models globally. Until the open-weight release, FLUX 3 Video is available via the bfl.ai API and through early-access partners integrating it into their platforms.

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