{
 "slug": "ratio-21-9",
 "name": "21:9 ultrawide",
 "category": "ratio",
 "group": "Cinema",
 "media": [
  "image",
  "video"
 ],
 "checked": "2026-10-13",
 "effect": "The cinema widescreen: epic, premium, filmic.",
 "use_when": "Brand films, website heroes, banners.",
 "phrase": "21:9 ultrawide frame",
 "pitfalls": [],
 "per_model": [],
 "external_refs": [
  {
   "site": "shotdeck",
   "url": "https://shotdeck.com/",
   "what": "real film examples of this aspect ratio (paid, link only)"
  },
  {
   "site": "flim",
   "url": "https://flim.ai/",
   "what": "film, ad and music-video stills of this aspect ratio (free tier, link only)"
  }
 ],
 "licensed": [],
 "site_names": [],
 "related": [
  "ratio-16-9",
  "anamorphic-lens"
 ],
 "rights": "own-work",
 "evidence": "film-craft",
 "source": {
  "url": null,
  "note": "The first Director Chair spec, own words"
 },
 "body": "",
 "shown_with": null,
 "url": "https://directorchair.ai/ratio/ratio-21-9",
 "markdown": "https://directorchair.ai/ratio/ratio-21-9.md",
 "prompts": {
  "nano-banana-pro": "[your subject] in [your setting]. 21:9 ultrawide frame.",
  "nano-banana-2": "[your subject] in [your setting]. 21:9 ultrawide frame.",
  "gpt-image": "A photograph of [your subject] in [your setting].\nPeople and framing: 21:9 ultrawide frame\nExclusions: no extra text, no watermark, no logo.",
  "seedream-5": "[your subject] in [your setting]. 21:9 ultrawide frame.",
  "seedance-2.5": "Scene: [your subject] in [your setting].\nFirst frame: 21:9 ultrawide frame\nShot 1 (0:00 to 0:05): one continuous shot",
  "seedance-2.0": "Scene: [your subject] in [your setting].\nFirst frame: 21:9 ultrawide frame\nShot 1: one continuous shot",
  "kling-3": "[your subject]. The scene is [your setting]. 21:9 ultrawide frame.",
  "veo-3.1": "21:9 ultrawide frame. [your subject] in [your setting]. Framing and subject stay as in the start image."
 },
 "licence": {
  "code": "MIT",
  "text": "CC BY 4.0",
  "third_party": "Clips and card texts inside a \"licensed\" block belong to their makers and are shown with permission and credit."
 }
}