{
 "slug": "ratio-1-1",
 "name": "1:1 square",
 "category": "ratio",
 "group": "Social",
 "media": [
  "image"
 ],
 "checked": "2026-10-13",
 "effect": "Neutral and centred; works everywhere a thumbnail goes.",
 "use_when": "Profile pictures, marketplace listings, carousels.",
 "phrase": "1:1 square frame, the subject centred",
 "pitfalls": [
  {
   "text": "The same prompt in another ratio drifts; give the approved render back as a reference.",
   "evidence": "measured",
   "source": "Director Chair field notes on image prompting"
  }
 ],
 "per_model": [
  {
   "model": "nano-banana-pro",
   "phrase": "Compose the image within a square 1:1 aspect ratio, focusing on central symmetry and balance.",
   "evidence": "unverified",
   "checked": "2025-12-08"
  }
 ],
 "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-4-5"
 ],
 "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-1-1",
 "markdown": "https://directorchair.ai/ratio/ratio-1-1.md",
 "prompts": {
  "nano-banana-pro": "[your subject] in [your setting]. Compose the image within a square 1:1 aspect ratio, focusing on central symmetry and balance.",
  "nano-banana-2": "[your subject] in [your setting]. Compose the image within a square 1:1 aspect ratio, focusing on central symmetry and balance.",
  "gpt-image": "A photograph of [your subject] in [your setting].\nPeople and framing: 1:1 square frame, the subject centred\nExclusions: no extra text, no watermark, no logo.",
  "seedream-5": "[your subject] in [your setting]. 1:1 square frame, the subject centred."
 },
 "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."
 }
}