Character Design Sheet

Character Design Sheet

Create consistent characters across multiple AI-generated images via inference.sh CLI.

Quick Start

curl -fsSL https://cli.inference.sh | sh && infsh login # Generate a character concept infsh app run falai/flux-dev-lora --input '{ "prompt": "character design reference sheet, front view of a young woman with short red hair, green eyes, wearing a blue jacket and white t-shirt, full body, white background, clean lines, concept art style, character turnaround", "width": 1024, "height": 1024 }' Install note: The install script only detects your OS/architecture, downloads the matching binary from dist.inference.sh, and verifies its SHA-256 checksum. No elevated permissions or background processes. Manual install & verification available.

The Consistency Problem

AI image generation produces different-looking characters every time, even with the same prompt. This is the #1 challenge in AI art for any project requiring the same character across multiple images.

Solutions (Ranked by Effectiveness)

TechniqueConsistencyEffortBest ForFLUX LoRA (trained on character)Very highHigh (requires training data)Ongoing projects, many imagesDetailed description anchorMedium-highLowQuick projects, few imagesSame seed + similar promptMediumLowVariations of single poseImage-to-image refinementMediumMediumRefining existing imagesReference image in promptVariesLowWhen model supports it

1. Turnaround Sheet

Shows the character from multiple angles: ┌────────┬────────┬────────┬────────┐ │ │ │ │ │ │ FRONT │ 3/4 │ SIDE │ BACK │ │ VIEW │ VIEW │ VIEW │ VIEW │ │ │ │ │ │ └────────┴────────┴────────┴────────┘ # Generate front view infsh app run falai/flux-dev-lora --input '{ "prompt": "character design, front view, young woman with short asymmetric red hair, bright green eyes, wearing navy blue bomber jacket over white graphic tee, dark jeans, red sneakers, standing in neutral pose, full body, clean white background, concept art, sharp details", "width": 768, "height": 1024 }' --no-wait # Generate 3/4 view (same description) infsh app run falai/flux-dev-lora --input '{ "prompt": "character design, three-quarter view, young woman with short asymmetric red hair, bright green eyes, wearing navy blue bomber jacket over white graphic tee, dark jeans, red sneakers, standing, full body, clean white background, concept art, sharp details", "width": 768, "height": 1024 }' --no-wait # Generate side view infsh app run falai/flux-dev-lora --input '{ "prompt": "character design, side profile view, young woman with short asymmetric red hair, bright green eyes, wearing navy blue bomber jacket over white graphic tee, dark jeans, red sneakers, standing, full body, clean white background, concept art, sharp details", "width": 768, "height": 1024 }' --no-wait # Generate back view infsh app run falai/flux-dev-lora --input '{ "prompt": "character design, back view, young woman with short asymmetric red hair, wearing navy blue bomber jacket over white graphic tee, dark jeans, red sneakers, standing, full body, clean white background, concept art, sharp details", "width": 768, "height": 1024 }' --no-wait # Stitch into reference sheet infsh app run infsh/stitch-images --input '{ "images": ["front.png", "three-quarter.png", "side.png", "back.png"], "direction": "horizontal" }'

2. Expression Sheet

Shows the character's face with different emotions: ┌────────┬────────┬────────┐ │NEUTRAL │ HAPPY │ ANGRY │ │ │ │ │ ├────────┼────────┼────────┤ │ SAD │SURPRISE│THINKING│ │ │ │ │ └────────┴────────┴────────┘ Minimum 6 expressions: neutral, happy, angry, sad, surprised, thinking. # Neutral infsh app run falai/flux-dev-lora --input '{ "prompt": "character portrait, close-up face, young woman with short red hair and green eyes, neutral calm expression, clean white background, concept art, consistent character design", "width": 512, "height": 512 }' --no-wait # Happy infsh app run falai/flux-dev-lora --input '{ "prompt": "character portrait, close-up face, young woman with short red hair and green eyes, warm genuine smile, happy expression, clean white background, concept art, consistent character design", "width": 512, "height": 512 }' --no-wait # Angry infsh app run falai/flux-dev-lora --input '{ "prompt": "character portrait, close-up face, young woman with short red hair and green eyes, furrowed brows, angry determined expression, clean white background, concept art, consistent character design", "width": 512, "height": 512 }' --no-wait # (Continue for sad, surprised, thinking...)

3. Outfit/Costume Sheet

Multiple outfits for the same character: OutfitDescriptionCasualBomber jacket, t-shirt, jeansWorkBlazer, button-down, slacksAthleticSports bra, leggings, running shoesFormalEvening dress, heels

4. Color Palette Sheet

Document exact colors for consistency: CHARACTER: Maya Chen Skin: ████ #F5D0A9 (warm beige) Hair: ████ #C0392B (auburn red) Eyes: ████ #27AE60 (emerald green) Jacket: ████ #2C3E50 (navy blue) T-shirt: ████ #ECF0F1 (off-white) Jeans: ████ #34495E (dark slate) Shoes: ████ #E74C3C (bright red)

The Description Anchor Technique

The most practical consistency technique: write a 50+ word detailed description and reuse it exactly in every prompt.

Template

[age] [gender] with [hair: color, length, style], [eye color] eyes, [skin tone], [facial features: any distinctive marks], wearing [top: specific color and style], [bottom: specific color and style], [shoes: specific color and style], [accessories: specific items]

Example

young woman in her mid-twenties with short asymmetric auburn red hair swept to the right side, bright emerald green eyes, light warm skin with a small beauty mark below her left eye, wearing a fitted navy blue bomber jacket with silver zipper over a white crew-neck t-shirt, dark slate slim jeans, and bright red canvas sneakers, small silver stud earrings Use this exact block in EVERY prompt for this character, only changing the action/pose/scene.

Proportion Guide

StyleHead-to-Body RatioBest ForRealistic7.5 : 1Film, photorealisticHeroic8 : 1Superheroes, actionAnime/Manga5-6 : 1Japanese animation styleStylized4-5 : 1Western animationChibi/Super-deformed2-3 : 1Cute, comedic, mascots Include proportion style in your prompts: "realistic proportions" vs "anime style proportions" vs "chibi proportions"

Using LoRA for Consistency

For projects requiring many images of the same character, train a LoRA: # Use FLUX with a character LoRA infsh app run falai/flux-dev-lora --input '{ "prompt": "maya_chen character, sitting at a cafe reading a book, warm afternoon light, candid photography style", "loras": [{"path": "path/to/maya-chen-lora.safetensors", "scale": 0.8}] }' LoRA Training Tips: Need 10-20 reference images of the character (consistent style) Train on specific trigger word (e.g., "maya_chen") Scale 0.7-0.9 balances consistency with prompt flexibility Lower scale = more creative freedom, higher = more strict matching

Common Consistency Failures

IssueWhy It HappensMitigationHair color driftModel interprets "red hair" differently each timeUse specific shade: "auburn red #C0392B"Eye color changeLow priority in generationMention eye color early in promptOutfit inconsistencyModel fills in details creativelyDescribe every clothing item explicitlyAge shiftVague age descriptionUse "mid-twenties" not "young"Face structure changeDifferent generations = different facesUse LoRA or same seed baseProportion shiftStyle interpretation variesSpecify "7.5 head proportions"

Character Bible Template

• For ongoing projects, maintain a character bible document:
• # Character: Maya Chen
• ## Visual Description (use in all prompts)
• young woman in her mid-twenties with short asymmetric auburn red hair...
• [full 50+ word anchor description]
• ## Color Palette
• Skin: #F5D0A9
• Hair: #C0392B
• Eyes: #27AE60
• Primary outfit: Navy #2C3E50
• Accent: Red #E74C3C
• ## Personality Notes (for expression/pose choices)
• Confident but approachable
• Default expression: slight curious smile
• Gestures: talks with hands, leans forward when interested
• ## Style Keywords
• concept art, clean lines, sharp details, [art style reference]
• ## LoRA (if trained)
• Path: ./loras/maya-chen-v2.safetensors
• Trigger: maya_chen
• Recommended scale: 0.8

Common Mistakes

MistakeProblemFixVague descriptionsDifferent character every time50+ word detailed anchorInconsistent prompt structureVarying emphasis = varying resultsSame structure, only change action/sceneGenerating one view onlyCan't use character in different contextsCreate full turnaround referenceNo color documentationColors drift across generationsRecord exact hex codesSkipping expression sheetCharacter feels one-dimensionalGenerate 6+ expressionsNot using LoRA for big projectsInconsistency compoundsTrain LoRA for 10+ image projects

Related Skills

npx skills add inference-sh/skills@ai-image-generation npx skills add inference-sh/skills@flux-image npx skills add inference-sh/skills@prompt-engineering Browse all apps: infsh app list