How to write Seedream 5.0 prompts for film and commercials: exact-ratio framing, Pro, Lite and Flash, a reusable structure and three worked examples.
Seedream 5.0 is ByteDance's image model, and Cinemagiq runs it in three variants: Seedream 5.0 Pro, Seedream 5.0 Lite and Seedream 5.0 Flash. All three deliver the exact aspect ratio you set. That matters when a still has to fit a vertical social cut, a widescreen frame, or the first frame of a video at a fixed shape. For film and commercial work, use it for location plates, product and food stills, mood frames, posters, storyboard frames and first frames for image-to-video.
Seedream 5.0 takes a written prompt plus optional settings and references:
Treat the opening words as a brief. "Food photography for a commercial" or "vertical film still for social media" tells the model the genre, the purpose and the shape before it reads a single detail. Then describe the subject, the surfaces around it, and the light.
[Format and purpose]: [subject] [action caught mid-moment], [setting and surfaces], [light], [color or mood], [what to leave out].
The format slot carries most of the weight: "photorealistic wide shot", "vertical film still", "product photography". The action slot is what makes a still feel like a frame from a moving scene.
Made in Cinemagiq. The exact prompt is under each one.
PromptVertical film still for social media: a neon-lit ramen counter at night, steam rising from two bowls, rain on the window, moody cyberpunk colors, no people.
PromptFood photography for a commercial: a stack of pancakes with maple syrup pouring over the top, butter melting, warm morning light, dark wooden table.
PromptPhotorealistic wide shot of an old steam locomotive crossing a stone viaduct in the Scottish highlands, smoke trailing behind, overcast sky.
Example 1: a vertical frame. The prompt opens with "Vertical film still for social media:", which agrees with the 9:16 setting, so words and canvas point the same way. Texture details do the storytelling: "steam rising from two bowls, rain on the window". The color direction is one phrase, "moody cyberpunk colors", and "no people" keeps the counter empty, which leaves space for a character to be added in a later shot.
Example 2: a commercial food shot. "Food photography for a commercial:" names the genre, which carries a whole set of conventions about framing and light. The motion is frozen with present-tense verbs: "maple syrup pouring over the top, butter melting". The lighting and the surface are set together, "warm morning light, dark wooden table", so the subject has a clear background to stand against.
Example 3: a photoreal location plate. "Photorealistic wide shot" sets the style and the framing in three words. The subject and the place are specific, "an old steam locomotive crossing a stone viaduct in the Scottish highlands", and a real region anchors the landscape. "Smoke trailing behind" gives the train a direction of travel, and "overcast sky" settles the light in two words.
{{placeholders}}, for example Food photography for a commercial: {{product}}, {{light}}.The image comes back in the aspect ratio you set. Ask for 9:16 and you get a vertical frame, ask for 16:9 and you get widescreen. Write the prompt for that shape too, with words like 'vertical' or 'wide shot', so the composition and the canvas agree.
Seedream 5.0 Flash is the fastest Seedream and delivers 1K or 2K, which suits drafts. Seedream 5.0 Pro delivers 1K or 2K. Seedream 5.0 Lite delivers 2K or 4K. Run the same prompt on two of them and keep notes on which one suits your project.
Seedream 5.0 Pro and Seedream 5.0 Flash take up to 10 reference images, and Seedream 5.0 Lite takes up to 14. Say in the prompt what each reference is for, such as a character's face, a costume or a location, rather than leaving the model to guess.
Write it into the prompt. Camera Angle Control is a feature of the Nano Banana models only, so on Seedream 5.0 the angle and shot size go in the text, for example 'low-angle wide shot' or 'top-down view', near the start of the prompt.
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