Troubleshooting low-detail renders in Leonardo AI

Short answer / recommendation
If you need readable, high-detail mockups from Leonardo AI, treat the model as a texture/imagery generator, not a typesetter. Generate cleaner high‑resolution artwork (high steps, proper CFG), use explicit prompts + negative prompts for sharpness, then either: a) upscale with a trained tool (Real-ESRGAN / Topaz) or Leonardo’s built‑in upscaler, and overlay vector text in post — or b) generate at very high base resolution and constrain typography tightly (rarely reliable). For production UI, option (a) is usually the fastest reliable route.

Why this helps
AI upscalers and post‑overlay keep glyphs perfectly legible and avoid the “muddy” pixel blending that comes from trying to force long paragraphs into a generator. Leonardo can make beautiful visuals, but small text and intricate UI chrome are brittle unless you treat text as a separate layer.

Prompt and negative‑prompt checklist (practical)
- Prompt anatomy: subject, environment, lighting, material, camera (e.g., “ui mockup of dashboard screen, clean glass surface, high contrast, cinematic studio light, macro close-up, 85mm lens, hyper‑detailed, crisp edges, 8k”).
- Add explicit typography cues: “legible button labels, short labels only, typeface Inter, font weight medium, left‑aligned, 14pt equivalent.”
- Negative prompt: “blurry, lowres, text unreadable, smeared, deformed letters, artifacts, painterly, watercolor.”
- Texture details: “sharp grain, crisp edges, no noise, high micro‑detail.”

Sampling & resolution tweaks
- Base resolution: start at 1024–1536 px for initial renders. For UI closeups, generate at 1536 or higher if available. Higher base reduces upscaler hallucination.
- Steps: 28–50. Less than ~20 is soft; >60 gives diminishing returns and slower results.
- Guidance (CFG): 7–12. Too high (>>15) can introduce unwanted artifacts; too low softens details.
- Sampler: try Euler a or DPM++ (depending on Leonardo’s available options) — test what produces crisper edges for your prompt.
- Seed control: lock seeds for A/B comparisons.

Upscaling & postprocess
- Use Leonardo’s built‑in upscaler for quick results; for best fidelity use Real‑ESRGAN or Topaz Gigapixel if you have budget. These preserve edges and improve small‑glyph legibility better than naive upscalers.
- After upscaling, overlay final text in a vector editor (Figma/Illustrator) or compositing app. Replace any generated labels with exported font layers for pixel-perfect clarity.

Decision criteria (when to do what)
- Budget small / fast prototype: use Leonardo upscaler + short labels kept in prompt.
- Budget moderate / high quality: generate high-res + external Real‑ESRGAN or Topaz + vector overlay.
- Skill level low: follow prompt checklist and use built‑in upscaler; avoid relying on AI to make long readable paragraphs.
- Team workflow: if handoff to designers, always provide high‑res assets + separate text layers or font specs.

Best-for / Avoid-if
- Best for: visual hero screens, textured mockups, decorative labels, rapid concept exploration.
- Avoid if: you need long, readable copy or production UI assets — use vector text or manual compositing.

Quick practical checklist (do this every run)
1) Clear prompt + negative prompt for “readable text, no blur”. 2) Set 28–50 steps, CFG ~8–12. 3) Generate at >=1024 px (prefer 1536 if available). 4) Upscale with Real‑ESRGAN/Leonardo upscaler. 5) Replace/generated text with vector layers in post.

If you want, I can convert your current prompt and sample settings into a tuned prompt and step/CFG recommendations to paste into Leonardo AI.

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