The JSON prompt trend split the AI art community in half. One side says it is the secret behind every great Veo 3 clip. The other says it is cargo-cult hype. This article tests it properly — with the primary sources, a three-way image comparison, and the one case where the format actually earns its place.
JSON Prompts, Tested: What Actually Works and What's Just Aesthetic
The JSON prompt trend split the AI art community in half. One side says it is the secret behind every great Veo 3 clip. The other says it is cargo-cult hype. This article tests it properly — with the primary sources, a three-way image comparison, and the one case where the format actually earns its place.
Prompt
A photorealistic editorial medium shot of a striking Afro-Brazilian man in his early 50s, the kind of face cast for an i-D magazine cover, unconventional editorial beauty — deep-set eyes under heavy brows, a broad nose with a slight bump from an old break, silver-streaked close-cropped hair and beard, a high forehead, in a dynamic pose, captured candidly. He holds a weathered cream paper shot list on a clipboard at waist height, the paper visible with handwritten pen notes — ink strokes legible as marks but no readable words. He wears a deconstructed oversized charcoal Yohji Yamamoto asymmetric coat with raw hems over a cream linen shirt, one hand steadying the clipboard, the other resting at his side. Set in a biophilic brutalist corridor — board-formed concrete walls with visible wood plank grain from the formwork, a matte black steel beam running overhead, a large potted fiddle-leaf fig in a raw concrete planter pushed against the wall, a tall industrial window at the far end of the corridor leaking cool daylight. FRAMING RULES (hard rules, follow all): never shot at eye level — shot from a slightly low angle, framed through a concrete opening so the subject is layered by the edge of a wall in the foreground. Three planes of depth: the concrete edge in the foreground, the subject in the mid-ground, the window and plant in the background. Off-centre composition along the rule of thirds — subject pushed deliberately to the right third with generous negative space on the left. Elevated chiaroscuro lighting with soft directional fill — the main key light comes from the window at the end of the corridor, raking across his face from camera-left, gentle falloff, shadow side slightly deeper than the lit side but still readable. Blacks lifted to matte dark slate, never true black — painterly but not severe. Natural skin texture, visible pores, slight imperfections around the eyes, a small mole on his left temple, no airbrushing. Captured on a Fujifilm GFX 100S with a 24mm lens at f/2.8, Kodak Portra 400 film with lifted shadows and matte finish. Contemplative expression, caught mid-thought as he reviews the shot list. No text on any surface, no labels, no signage.