Grok Imagine Image

AI Image Editing Model

Image $$ · 2¢

An image generation model by xAI designed to generate highly aesthetic images from text descriptions.

Grok Imagine Image generated image of A majestic wide-angle cinematic view of a high-tech submersible descending in...
Grok Imagine Image generated image of A vast, dimly lit ancient library carved into a cliffside at golden hour, wit...
2048 x 2048
Max Resolution
Supported Modes
Text to Image Image Edit
Active

Details

Model ID
grok-imagine-image
Also known as: grok-imagine
Creator
xAI
Family
grok
Released
January 2026
Max Input Images
0
Tags
image-generation text-to-image image-editing commercial
// Get Started

Ready to integrate?

Access grok-imagine-image via our unified API.

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Available at 2 providers

Starting from

$0.020 /image via fal.ai, xAI

Prices shown are in USD

See all providers

Provider Performance

Fastest generation through xai at 7,683ms median latency with 62.6% success rate.

Aggregated from real API requests over the last 30 days.

Generation Time

xai
7,683ms p95: 11,909ms
fal
7,792ms p95: 25,311ms

Success Rate

xai
62.6%
189 / 302 requests
fal
90.7%
262 / 289 requests

Time to First Byte

xai
7,068ms
p95: 10,824ms
fal
7,793ms
p95: 25,314ms

Provider Rankings

# Provider p50 Gen Time p95 Gen Time Success Rate TTFB (p50)
1 xai 7,683ms 11,909ms 62.6% 7,068ms
2 fal 7,792ms 25,311ms 90.7% 7,793ms
Data updated every 15 minutes. Based on all API requests through Lumenfall over the last 30 days.

Providers & Pricing (2)

Grok Imagine Image is available from 2 providers, with per-image pricing starting at $0.02 through fal.ai.

fal.ai
Text to Image
fal/grok-imagine-image
Provider Model ID: xai/grok-imagine-image
$0.020 /image
xAI
Text to Image Image Edit
xai/grok-imagine-image
Provider Model ID: grok-imagine-image
$0.0020 /input image

grok-imagine API OpenAI-compatible

Integrate Grok Imagine Image into your workflow via the Lumenfall OpenAI-compatible API to programmatically generate high-fidelity images and perform precise image edits. Use a single endpoint to access xAI's image generation technology using standard text-to-image parameters.

Base URL
https://api.lumenfall.ai/openai/v1
Model
grok-imagine-image

Code Examples

Text to Image

/v1/images/generations
curl -X POST \
  https://api.lumenfall.ai/openai/v1/images/generations \
  -H "Authorization: Bearer $LUMENFALL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "grok-imagine-image",
    "prompt": "",
    "size": "1024x1024"
  }'
# Response:
# { "created": 1234567890, "data": [{ "url": "https://...", "revised_prompt": "..." }] }

Parameter Reference

Required Supported Not available

Core Parameters

Parameter Type Description Modes
prompt string Required. Text prompt for image generation
T2I Edit

Size & Layout

Parameter Type Description Modes
size string Image dimensions as WxH pixels (e.g. "1024x1024") or aspect ratio (e.g. "16:9")
WxH determines both shape and scale (aspect_ratio and resolution are ignored when size is provided). W:H format is equivalent to aspect_ratio.
T2I Edit
aspect_ratio string Aspect ratio of the output image (e.g. "16:9", "1:1")
Controls shape independently of scale. Use with resolution to control both. If size is also provided, size takes precedence. Any ratio is accepted and mapped to the nearest supported value.
T2I Edit
resolution string Output resolution tier (e.g. "1K", "4K")
auto 1k 1K 2k 2K
Controls scale independently of shape. Higher tiers produce larger images and cost more. If size is also provided, size takes precedence for scale. Any tier is accepted and mapped to the nearest supported value.
T2I Edit
Output size aspect_ratio + resolution
Flexible
Auto "auto" Model chooses optimal dimensions
1K 13 sizes
Output size aspect_ratio + resolution
1508 × 696 "1508x696" or "19.5:9" + "1K"
1183 × 887 "1183x887" or "4:3" + "1K"
1527 × 687 "1527x687" or "20:9" + "1K"
696 × 1507 "696x1507" or "9:19.5" + "1K"
1024 × 1024 "1024x1024" or "1:1" + "1K"
887 × 1182 "887x1182" or "3:4" + "1K"
687 × 1526 "687x1526" or "9:20" + "1K"
724 × 1448 "724x1448" or "1:2" + "1K"
1448 × 724 "1448x724" or "2:1" + "1K"
836 × 1254 "836x1254" or "2:3" + "1K"
1254 × 836 "1254x836" or "3:2" + "1K"
768 × 1365 "768x1365" or "9:16" + "1K"
1365 × 768 "1365x768" or "16:9" + "1K"
2K 13 sizes
Output size aspect_ratio + resolution
1392 × 3015 "1392x3015" or "9:19.5" + "2K"
1774 × 2365 "1774x2365" or "3:4" + "2K"
2365 × 1774 "2365x1774" or "4:3" + "2K"
1374 × 3053 "1374x3053" or "9:20" + "2K"
3053 × 1374 "3053x1374" or "20:9" + "2K"
1536 × 2731 "1536x2731" or "9:16" + "2K"
2731 × 1536 "2731x1536" or "16:9" + "2K"
2048 × 2048 "2048x2048" or "1:1" + "2K"
1448 × 2896 "1448x2896" or "1:2" + "2K"
2896 × 1448 "2896x1448" or "2:1" + "2K"
1672 × 2508 "1672x2508" or "2:3" + "2K"
2508 × 1672 "2508x1672" or "3:2" + "2K"
3014 × 1391 "3014x1391" or "19.5:9" + "2K"

How these parameters work

size

Exact pixel dimensions

"1920x1080"
aspect_ratio

Shape only, default scale

"16:9"
resolution

Scale tier, preserves shape

"1K"

Priority when combined

size aspect_ratio + resolution aspect_ratio resolution

size is most specific and always wins. aspect_ratio and resolution control shape and scale independently.

How matching works

Shape matching – we pick the closest supported ratio. Ask for 7:1 on a model with 4:1 and 8:1, you get 8:1.
Scale matching – providers use different tier formats: K tiers (0.5K 1K 2K 4K) or megapixel tiers (0.25 1). If the exact tier isn't available, you get the nearest one.
Dimension clamping – if a model has pixel limits, we clamp dimensions to fit and keep the aspect ratio intact.

Media Inputs

Parameter Type Description Modes

Output & Format

Parameter Type Description Modes
response_format xai string Response format for generated images. If omitted, xAI returns URLs.
b64_json url
Default: "url"
T2I Edit
output_format string Output image format
png jpeg gif webp avif
Gateway converts to requested format if provider doesn't support it natively.
T2I Edit
output_compression integer Compression level for lossy formats (JPEG, WebP, AVIF)
T2I Edit
n integer Number of images to generate
Default: 1
Gateway generates multiple images in parallel even if provider only supports 1.
T2I Edit

Additional Parameters

Provider-specific passthrough fields, available only when the request is routed to the listed provider.

Parameter Type Description Modes
fal
sync_mode boolean If `True`, the media will be returned as a data URI and the output data won't be available in the request history.
T2I Edit
xai
storage_options object Options for storing generated output in the xAI Files API.
T2I Edit
user ["string", "null"] Unique end-user identifier that can help xAI monitor and detect abuse.
T2I Edit

Parameter Normalization

How we handle parameters across different providers

Not every provider speaks the same language. When you send a parameter, we handle it in one of four ways depending on what the model supports:

Behavior What happens Example
passthrough Sent as-is to the provider style, quality
renamed Same value, mapped to the field name the provider expects prompt
converted Transformed to the provider's native format size
emulated Works even if the provider has no concept of it n, response_format

Parameters we don't recognize pass straight through to the upstream API, so provider-specific options still work.

Grok Imagine Image Benchmarks

Grok Imagine Image currently holds an Elo rating of 1227 for text-to-image generation and an Elo of 1200 for image editing. It ranks 11th globally for image editing capabilities and 19th for general image generation performance.

Lumenfall Arena
#12
Image Editing
1201 Elo
Lumenfall Arena
#21
Text-to-Image
1237 Elo

Text-to-Image Landscape

1 model without pricing omitted

Elo vs Speed

23 models waiting for enough speed data

Competition Results

Text-to-Image

Text Rendering

View leaderboard
#1
Modern Clean Menu
24 models
Text-to-Image
Prompt

“Modern minimalist restaurant menu design, white background with colorful food photos in grid, sections for appetizers/pizza/mains, bold sans-serif fonts, vibrant accents, clean professional layout for casual dining.”

Text-to-Image
Prompt

“Create a clean, modern vector infographic poster about the Apollo 11 mission. NASA-inspired palette (navy, white, muted red, light gray). Flat-vector style, crisp lines, consistent iconography, subtle gradients only. Steps (stop at landing): 1. Launch (Saturn Vicon) 2. Earth Orbit (Earth + orbit ring icon) 3. Translunar (trajectory arc icon) 4. Lunar Orbit (Moon + orbit ring icon) 5. Descent (lunar module descending icon) 6. Landing (lunar module on the surface icon) Small supporting elements (minimal text): • Crew strip: three silhouette icons with only last names: Armstrong, Aldrin, Collins. • Landing site marker: Moon pin labeled "Tranquility" only. Layout constraints: generous margins, large readable labels, clean background with subtle stars. Vector-only, print-poster look, high resolution.”

#15
Vintage Cafe Logo
24 models
Text-to-Image
Prompt

“Vintage minimalist restaurant logo for "Caffè Florian", retro cloche dome with steam and "Est. 1720" banner, classic typography, warm brown and cream tones, subtle texture on light background, vector emblem style.”

#4
Chalkboard Menu
25 models
Text-to-Image
Prompt

“Handwritten-style chalkboard menu in a cozy café, all text rendered in the exact same realistic chalk handwriting style with natural variations in letter size, slight slant, and chalk texture — no printed or digital fonts anywhere on the board. Title at the top in elegant cursive chalk handwriting: ‘TODAY’S SPECIALS – APRIL 30, 2026’. Below it, three menu items also in the same handwritten chalk style: ‘Truffle Mushroom Risotto – $24’, ‘Grilled Octopus with Lemon & Herbs – $28’, ‘Brown Butter Chocolate Chip Cookies – $9’. At the very bottom, smaller text in the identical handwritten chalk style (slightly smaller but still clearly legible with the same handwriting characteristics): ‘All items made fresh daily • Ask about our gluten-free options’. Warm ambient café lighting, visible chalk dust and smudges, realistic handwriting imperfections, no clean printed text anywhere.”

Prompt

“Ad for 'Magic Burger'. Dynamic, exploded burger with all components (bun, patty, cheese, lettuce, tomato, sauce) suspended in mid-air. Emphasize photorealistic detail and a sense of motion. Dark, fiery background with glowing embers. Integrate text: 'MAGIC BURGER' as a prominent title, 'LIMITED TIME ONLY' as a secondary message, and '€6.99' in a starburst, all rendered with a fiery, glowing effect.”

Text-to-Image

Photorealism

View leaderboard
Text-to-Image
Prompt

“A candid street photo of an elderly Japanese man repairing a red bicycle in light rain, reflections on wet pavement, shallow depth of field, 50mm lens, natural skin texture, imperfect framing, motion blur from passing cars, cinematic but realistic, no stylization.”

#4
Chalkboard Menu
25 models
Text-to-Image
Prompt

“Handwritten-style chalkboard menu in a cozy café, all text rendered in the exact same realistic chalk handwriting style with natural variations in letter size, slight slant, and chalk texture — no printed or digital fonts anywhere on the board. Title at the top in elegant cursive chalk handwriting: ‘TODAY’S SPECIALS – APRIL 30, 2026’. Below it, three menu items also in the same handwritten chalk style: ‘Truffle Mushroom Risotto – $24’, ‘Grilled Octopus with Lemon & Herbs – $28’, ‘Brown Butter Chocolate Chip Cookies – $9’. At the very bottom, smaller text in the identical handwritten chalk style (slightly smaller but still clearly legible with the same handwriting characteristics): ‘All items made fresh daily • Ask about our gluten-free options’. Warm ambient café lighting, visible chalk dust and smudges, realistic handwriting imperfections, no clean printed text anywhere.”

Prompt

“Ad for 'Magic Burger'. Dynamic, exploded burger with all components (bun, patty, cheese, lettuce, tomato, sauce) suspended in mid-air. Emphasize photorealistic detail and a sense of motion. Dark, fiery background with glowing embers. Integrate text: 'MAGIC BURGER' as a prominent title, 'LIMITED TIME ONLY' as a secondary message, and '€6.99' in a starburst, all rendered with a fiery, glowing effect.”

Text-to-Image

Product, Branding & Commercial

View leaderboard
#15
Vintage Cafe Logo
24 models
Text-to-Image
Prompt

“Vintage minimalist restaurant logo for "Caffè Florian", retro cloche dome with steam and "Est. 1720" banner, classic typography, warm brown and cream tones, subtle texture on light background, vector emblem style.”

Prompt

“Ad for 'Magic Burger'. Dynamic, exploded burger with all components (bun, patty, cheese, lettuce, tomato, sauce) suspended in mid-air. Emphasize photorealistic detail and a sense of motion. Dark, fiery background with glowing embers. Integrate text: 'MAGIC BURGER' as a prominent title, 'LIMITED TIME ONLY' as a secondary message, and '€6.99' in a starburst, all rendered with a fiery, glowing effect.”

Text-to-Image

Portrait

View leaderboard
#16
Fantasy Warrior
23 models
Text-to-Image
Prompt

“Close portrait of a battle-worn paladin in ornate engraved plate armor, hair braided with small beads, faint scars and dirt on the skin, warm torchlight reflecting off metal, shallow depth of field, bokeh sparks, lifelike eyes, highly detailed texture on leather straps and cloth underlayer.”

Uncategorized

Text-to-Image
Prompt

“Create a clear, 45° top-down isometric miniature 3D cartoon scene of Japan's signature dish: sushi, with soft refined textures, realistic PBR materials, gentle lighting, on a small raised diorama base with minimal garnish and plate. Solid light blue background. At top-center: 'JAPAN' in large bold text, 'SUSHI' below it, small flag icon. Perfectly centered, ultra-clean, high-clarity, square format.”

#17
Geometric Composition
26 models
Text-to-Image
Prompt

“A glass cube on a wooden table. Inside the cube is a small blue sphere. On top of the cube sits a red book. A green plant is behind the cube, partially visible through the glass. Soft window light from the left.”

Text-to-Image
Prompt

“Hyper-photorealistic scene of fluffy baby animals—a golden retriever puppy, tabby kitten, baby bunny, and red fox kit—with big expressive eyes and ultra-detailed soft fur, playfully chasing butterflies and tumbling together in a lush wildflower meadow, warm golden sunrise light with god rays and dew sparkles, joyful wholesome vibe, 8K masterpiece.”

Text-to-Image
Prompt

“Hyper-photorealistic full-body portrait of a female superhero standing triumphantly on a New York skyscraper rooftop at golden sunset, wearing a classic modest superhero costume with flowing cape, chest emblem, gloves, and boots in red and blue colors, practical design, short hair, strong determined heroic expression looking into the distance, powerful confident stance with hands on hips and cape billowing dramatically in the wind, detailed urban cityscape background, warm natural sunlight with sharp shadows and fabric highlights, ultra-sharp textures on suit, hair, and concrete, 8K masterpiece, empowering family-friendly style.”

3 attempts – showing best result
#10
Intricate Floral Mandala
15 models
Text-to-Image
Prompt

“Perfectly symmetrical mandala made entirely of real flowers, petals, leaves, fruits, and seeds in vibrant natural colors, intricate layered patterns with radial symmetry, top-down view on a soft neutral background, hyper-detailed organic textures and subtle shadows, photorealistic, 8K masterpiece.”

3 attempts – showing best result
Text-to-Image
Prompt

“Hyper-photorealistic interior of a lush Victorian glass greenhouse filled with exotic tropical plants, vibrant blooming orchids, tall ferns, colorful butterflies in flight, sunlight filtering through ornate glass roof creating realistic caustics and dew on leaves, intricate iron framework visible, misty atmosphere, 8K masterpiece.”

3 attempts – showing best result
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Grok Imagine Image is best for

See all Use Cases

The model performs strongest in digital portraiture and text rendering, securing a 56.4% win rate in portraits and ranking 7th for text accuracy. Performance is more limited in anime and commercial branding categories, where win rates sit between 32% and 37.5%.

Grok Imagine Image FAQ

How much does Grok Imagine Image cost?

Grok Imagine Image starts at $0.02 per image through Lumenfall. Pricing varies by provider. Lumenfall does not add any markup to provider pricing.

How do I use Grok Imagine Image via API?

You can use Grok Imagine Image through Lumenfall's OpenAI-compatible API. Send requests to the unified endpoint with model ID "grok-imagine-image". Code examples are available in Python, JavaScript, and cURL.

Which providers offer Grok Imagine Image?

Grok Imagine Image is available through xAI and fal.ai on Lumenfall. Lumenfall automatically routes requests to the best available provider.

What is the maximum resolution for Grok Imagine Image?

Grok Imagine Image supports images up to 2048x2048 resolution.

Overview

Grok Imagine Image is a high-fidelity text-to-image generation model developed by xAI. It is engineered to transform complex natural language prompts into visually striking, aesthetic imagery with a particular focus on realism and detailed composition. The model is distinctive for its adherence to user intent and its ability to render high-resolution outputs suitable for both creative exploration and commercial applications.

Strengths

  • Aesthetic Consistency: The model is tuned to prioritize visually appealing compositions, lighting, and textures, reducing the need for extensive “prompt engineering” to achieve professional-looking results.
  • Human Anatomy and Text Rendering: It demonstrates improved accuracy in rendering human features—such as hands and eyes—and can incorporate legible, coherent text within generated images more reliably than many first-generation diffusion models.
  • Prompt Adherence: The model excels at interpreting multi-layered instructions, accurately placing specific objects and following spatial relationships defined in the text description.
  • Processing Speed: Optimized for rapid inference, the model generates high-resolution images quickly, making it suitable for iterative design workflows.

Limitations

  • Style Bias: Because the model is optimized for “highly aesthetic” outputs, it may default to a polished or cinematic look even when a more raw or lo-fi aesthetic is requested.
  • Niche Concept Gaps: While strong on general concepts, the model may occasionally struggle with highly technical or obscure domain-specific imagery where training data density is lower.
  • Image Editing Constraints: While capable of image-to-image tasks, it may lack the granular “in-painting” controls found in specialized tools dedicated solely to localized image manipulation.

Technical Background

Grok Imagine Image is built upon a concentrated diffusion architecture designed by xAI, leveraging massive datasets to bridge the gap between semantic understanding and visual synthesis. Its training approach emphasizes “alignment” between the latent visual space and conversational language patterns, allowing it to understand prompts that are phrased naturally rather than as a string of keywords.

Best For

This model is ideal for creating marketing collateral, concept art, and high-quality social media assets where visual impact is the primary goal. It is also well-suited for rapid prototyping in UI/UX design and architectural visualization. Grok Imagine Image is available through Lumenfall’s unified API and playground, allowing developers to integrate high-end image generation into their applications with minimal overhead.

Try Grok Imagine Image in Playground

Generate images with custom prompts — no API key needed.

Open Playground