{"id":263419,"date":"2026-08-21T12:33:33","date_gmt":"2026-08-21T19:33:33","guid":{"rendered":"https:\/\/picsart.com\/blog\/?p=263419"},"modified":"2026-08-21T12:33:33","modified_gmt":"2026-08-21T19:33:33","slug":"flux-3-prompts","status":"publish","type":"post","link":"https:\/\/picsart.com\/blog\/flux-3-prompts\/","title":{"rendered":"Flux 3 prompts: start from text, images, or a clip"},"content":{"rendered":"
Flux 3 prompts have to carry the soundtrack. The model makes picture and sound in one pass. So every line of description also tells the clip what to sound like. Say nothing about the audio and Flux 3 chooses it for you.<\/p>\n
That single fact changes the whole job. Most AI video prompt lists target models that hand back silent footage. So those prompts transfer badly. Instead, a Flux 3 prompt names the room tone, the impact, the line of dialogue. It also gets twenty seconds to work with instead of the five or ten most models allow. That is long enough for a character to walk in, do something, and say something.<\/p>\n
The other thing that changes is where the prompt starts. Flux 3 Video takes three kinds of input, and the prompt looks different for each one. Start from words alone, start from reference images, or start from a clip you already have and keep it going. So the 25 prompts below follow that split. The mode decides what the prompt still needs to say, and what the model can already see for itself.<\/p>\n
Copy any of them, swap in the subject you care about, and generate.<\/p>\n
What makes a Flux 3 prompt different<\/span><\/h2>\n
A Flux 3 prompt has four jobs that a prompt for a silent model never has to do:<\/p>\n
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Decide the audio.<\/strong> Room tone, impacts, music, or a spoken line. Name what makes the noise, or the model picks something for you.<\/li>\n
The length of the beat.<\/strong> Twenty seconds holds a whole small action. Say what fills it.<\/li>\n
The number of shots.<\/strong> Flux 3 can cut between angles inside one generation, so state whether you want one continuous take or several.<\/li>\n
Any words on screen.<\/strong> Reproduce the string exactly and place it in the frame.<\/li>\n<\/ul>\n
Two product limits shape everything below. Clip length comes from a short list rather than a typed number: auto, 5, 10, 15, or 20 seconds. Frame shape, however, is wider open. It runs from 21:9 down to 9:16, so a wide film crop and a vertical social crop are both available. Resolution is hd or fhd.<\/p>\n
Text-to-video prompts<\/span><\/h2>\n
Words alone. This is where prompt craft matters most, because the model has nothing except what you type. Name the sound source rather than a mood. “Gravel crunching under boots” gives Flux 3 something to render. “Atmospheric” does not.<\/p>\n
Prompts led by sound<\/h3>\n
The audio is the point of these. In short, each one names what makes noise, and says what stays quiet.<\/p>\n
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Room tone and one small action<\/h3>\n\n
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A locksmith’s workshop late in the evening, one bare bulb over the bench, brass filings on the wood. A hand turns a half-cut key against a grinding wheel, sparks arcing off in short bursts. Sound: the rising whine of the wheel each time the key touches it, filings ticking onto the bench, a radio murmuring in another room too quietly to make out words. No music.<\/p>\n\n