book-cover-designDesign professional book and ebook covers using each::sense AI. Generate compelling cover art for novels, non-fiction, self-published books, audiobook covers, and digital publications across all genres including thriller, romance, sci-fi, fantasy, business, and memoir. Use for: book covers, ebook covers, audiobook art, kindle covers, novel artwork, self-pub…
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Design professional book and ebook covers across every genre using each::sense — the intelligent AI agent that automatically selects the best model for your request.
Requires an each::labs API key. Get one at eachlabs.ai.
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": "Design a book cover for a psychological thriller novel. A lone figure standing at the end of a foggy pier at night, dark moody atmosphere, desaturated blue-green tones, cinematic lighting from a single distant lamppost, ominous and suspenseful, portrait orientation."
}
],
"stream": false
}'
from openai import OpenAI
client = OpenAI(
api_key="YOUR_EACHLABS_API_KEY",
base_url="https://eachsense-agent.core.eachlabs.run/v1"
)
response = client.chat.completions.create(
model="eachsense/beta",
messages=[{
"role": "user",
"content": "Design a book cover for a psychological thriller novel. A lone figure standing at the end of a foggy pier at night, dark moody atmosphere, desaturated blue-green tones, cinematic lighting from a single distant lamppost, ominous and suspenseful, portrait orientation."
}]
)
print(response.choices[0].message.content)
Provide genre references or mood boards to guide the style:
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": [
{"type": "text", "text": "Create a book cover in a similar artistic style to this reference but for a fantasy epic. Replace the subject with a towering crystal castle surrounded by floating islands, keep the painterly quality and dramatic sky."},
{"type": "image_url", "image_url": {"url": "https://example.com/style-reference.jpg"}}
]
}
],
"stream": false
}'
Images are sent inside messages using the OpenAI multimodal content format. Maximum 4 images per request.
Set "stream": true for real-time SSE responses, or "stream": false for complete result in a single response. Streaming is useful for showing progress in UIs; non-streaming is simpler for scripts and automation.
| Genre | Visual Style | Colors | Mood |
|---|---|---|---|
| Thriller/Mystery | Dark, high contrast | Deep blues, blacks, reds | Tension, suspense |
| Romance | Soft, warm, intimate | Pinks, golds, warm tones | Passion, longing |
| Sci-Fi | Futuristic, dramatic | Neon blues, purples, silvers | Wonder, technology |
| Fantasy | Epic, painterly | Rich jewel tones | Magic, adventure |
| Literary Fiction | Minimalist, symbolic | Muted, sophisticated | Contemplation |
| Business/Self-Help | Clean, bold | Strong single color + white | Authority, clarity |
| Horror | Gritty, unsettling | Dark reds, blacks, sickly greens | Dread, fear |
| Children's | Bright, whimsical | Primary colors, pastels | Joy, wonder |
book cover art, portrait orientation, cinematic composition, dramatic lighting,
painterly illustration, atmospheric mood, symbolic imagery, single focal point,
genre-appropriate, space for title text at top, author name area at bottom
text on the cover — add title and author in design software
landscape orientation — books are portrait
cluttered composition — covers need visual hierarchy
photorealistic people — uncanny valley risk
book cover for [genre] [type], [scene/subject description], [artistic style], [color palette], [mood/atmosphere], portrait orientation
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": "Design a sci-fi book cover. An astronaut floating in the rings of Saturn, seen from behind, tiny against the massive planet, stars and cosmic dust swirling around, deep space blues and warm amber planet light, epic and solitary, portrait orientation."
}
],
"stream": false
}'
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": "Create a minimalist literary fiction book cover. A single red door standing alone in an endless white desert, long shadow stretching toward the viewer, surreal and contemplative, muted earth tones with one pop of deep red, portrait orientation."
}
],
"stream": false
}'
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": "Design a business book cover. Abstract geometric mountain peak made of interconnected data nodes and lines, navy blue background fading to white at the top, clean and professional, corporate yet inspiring, portrait orientation with ample space for a large title."
}
],
"stream": false
}'
AI image generators cannot reliably render text. Always plan to add title, subtitle, and author name in post-production.
Recommended workflow:
| Format | Size |
|---|---|
| Amazon Kindle | 1600 x 2560 px |
| Print Paperback (6x9) | 1800 x 2700 px |
| Audiobook | 3200 x 3200 px |
| Apple Books | 1400 x 1873 px |
# Step 1: Generate concept art
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": "Book cover for a fantasy novel. An ancient tree with roots made of glowing runes, mystical forest background, ethereal green and gold light filtering through mist, portrait orientation."
}
],
"stream": false
}'
# Step 2: Refine the artwork
curl -X POST https://eachsense-agent.core.eachlabs.run/v1/chat/completions \
-H "Content-Type: application/json" \
-H "X-API-Key: $EACHLABS_API_KEY" \
-d '{
"messages": [
{
"role": "user",
"content": "Book cover for a fantasy novel. An ancient tree with roots made of glowing runes, mystical forest background, ethereal green and gold light filtering through mist, portrait orientation."
},
{
"role": "assistant",
"content": "..."
},
{
"role": "user",
"content": "Darken the upper third of the image to create space for a light-colored title. Make the rune glow brighter and add fireflies in the mist."
}
],
"stream": false
}'