THE ENGINES
The lab does not chase every new model; it keeps a small bench where each engine covers a real moment of your work: sketching, finishing, writing words into an image, animating it, giving it a voice. Cheap engines to explore, heavier ones for the final render.
Each generation spends a set number of credits, shown per engine below; cheap engines to explore, heavier ones for the final render. See the plans on the pricing page. Raw engine prices are shown for transparency.
CREDITS · PER IMAGE
The sketchpad. Turns your prompt into an image in a few seconds, so you can try ten ideas in a row. Shapes and composition are there; fine detail, hands and text stay rough.
Advice: Use it to explore, then re-run your favourite prompt on a sharper engine.
2 CREDITS · IMAGEENGINE PRICE $0.003 / MP
The sign painter. The one engine that writes clean, readable text inside the image: posters, signage, logos, packaging. Up to 4 MP, with strong photorealism.
Advice: Pick it whenever words must appear in the image; FLUX letters melt, Seedream's don't.
16 CREDITS · IMAGEENGINE PRICE $0.04 / IMAGE
The workhorse. Cleaner shapes, better anatomy and lighting than Schnell, and it follows a long prompt more closely. Still quick.
Advice: The right default once you know what you want and you are going to print it.
18 CREDITS · IMAGEENGINE PRICE $0.025 / MP
The finisher. Best prompt understanding, textures and micro detail; it holds up when the image is blown up to poster or wall size.
Advice: Keep it for the final piece: it is the dearest image engine, so save it for the shot that matters.
28 CREDITS · IMAGEENGINE PRICE $0.04 / MP
The retoucher. It does not make a new image: it repaints one exact area of the image you import and leaves every other pixel untouched. Paint the zone, describe what belongs there.
Advice: Pick it to replace or fix one thing in an image you already have; it needs an import and a painted zone.
35 CREDITS · IMAGEENGINE PRICE $0.05 / MP
CREDITS · PER SECOND
The action camera. It loves movement: a creature leaping, a run, a travelling shot, with cleaner detail than its 02 ancestor. Landscape only, silent.
Advice: Pick it when your prompt is about motion rather than a quiet portrait.
20 CREDITS · SECUP TO 10S16:9SILENTENGINE PRICE $0.047 / S · 768P · FAL BILLS PER CLIP, NOT PER SECOND
The daily driver. Sharp, stable motion that stays faithful to your key frame, believable physics, any ratio. Silent clip.
Advice: Start here: modern quality at the lowest weight.
30 CREDITS · SECUP TO 10S16:9 / 9:16 / 1:1SILENTENGINE PRICE $0.07 / S
The precision brush. An older generation, but the only engine that reads a painted zone: paint the area that should move on your key frame, and everything outside it holds perfectly still.
Advice: Pick it when the motion belongs in one exact place; every other engine animates the whole frame.
40 CREDITS · SECUP TO 10S16:9 / 9:16 / 1:1SILENTENGINE PRICE $0.098 / S
The cinema grade. Motion that feels filmed rather than morphed, faces that hold, up to 15 seconds; and it speaks, with native sound and voices in the clip.
Advice: The shot that matters, with its own soundtrack, at half the flagship's weight.
50 CREDITS · SECUP TO 15S16:9 / 9:16 / 1:1SOUND ON OR OFF, SAME PRICEENGINE PRICE $0.14 / S
Google's storyteller. Dialogue with lip sync, ambient sound and music rendered together with the picture, in short 4, 6 or 8 second takes.
Advice: Use it when the clip needs to talk: the strongest speech and lip sync engine.
60 CREDITS · SECUP TO 8S16:9 / 9:16SOUND ON OR OFF, SAME PRICEENGINE PRICE $0.15 / S · 720P · FAL'S PAGE CLAIMS $0.10 / S SILENT, UNCONFIRMED
The flagship. Up to 15 seconds, several shots in one clip, the sharpest prompt following, and its own synced soundtrack.
Advice: The final render: slowest, heaviest, the maximal quality bar.
100 CREDITS · SECUP TO 15S16:9 / 9:16 / 1:1 / 21:9SOUND ON OR OFF, SAME PRICEENGINE PRICE $0.24 / S · 720P · 1080P WOULD COST 2.5X
CREDITS · PER TRACK
A song machine: give it a style and lyrics and it returns a sung track, verses, hook and all.
Advice: A real song, with vocals, sung from your lyrics; fun for shorts and outros.
15 CREDITS · TRACKSINGS YOUR LYRICSENGINE PRICE $0.03 / SONG
Google's music engine: dense, layered instrumentals with real dynamics, the richest sound on the bench.
Advice: The premium pick for shorts; each run is a fixed clip of about 30 seconds.
50 CREDITS · TRACKCLIPS OF ABOUT 30SENGINE PRICE $0.10 / CLIP (~30S)
Stability's soundtrack engine: instrumental music rendered at the exact length you ask, from quiet ambient beds to driving scores.
Advice: Scores the exact length you ask, up to ~3 minutes; the default pick for any film.
70 CREDITS · TRACKEXACT LENGTH, UP TO 190SENGINE PRICE $0.20 / GENERATION