GPT Image 1.5 OpenAI vs Grok Imagine Image Pro xAI

GPT Image 1.5

• + Excellent texture on the capybara's fur and the taxi interior
• + Cinematic lighting that accurately reflects a night scene
• + Natural character interactions and expressions

• − The passenger is slightly out of focus
• − Composition is very tight and crops out the city environment

Grok Imagine Image Pro

• + Clearer view of the Manhattan street environment and taxi exterior
• + Highly detailed and readable text on the taxi cap
• + Captures the 'bored expression' of the passenger perfectly

• − The texture of the capybara's fur is slightly smooth and less realistic
• − The steering wheel appears to be emerging from the capybara's arm/jacket rather than being held

GPT Image 1.5

• + Excellent adherence to the clothing reference (peacoat, scarf, jeans, sunglasses, watch)
• + Maintains the subject's face, hair, and vitiligo patterns with high accuracy
• + Natural lighting and shadows that match the beach setting

• − Slightly changes the background details like the wooden post texture
• − Introduces minor sunglasses artifacts where they meet the face

Grok Imagine Image Pro

• + Perfect preservation of the original background and pose
• + Subject's face and hair are nearly identical to the source image

• − Completely failed to use the outfit from Image 2, generating a generic royal costume instead
• − Skin tone on the newly generated hands does not match the subject's face and vitiligo

GPT Image 1.5

• + Perfectly depicts the small blue sphere inside the cube.
• + Highly realistic glass reflections and refractions of the background plant.
• + Excellent lighting consistency from the left window.

• − The sphere is quite large relative to the cube, rather than 'small' as requested.

Grok Imagine Image Pro

• + Good composition with a more interesting plant choice (Monstera).
• + Follows the instruction for a 'small' sphere better than Model A.
• + Accurate placement of all requested elements.

• − The glass cube has a significant rendering error where a second sphere or reflection appears physically detached on the right.
• − The perspective of the cube's base and the table surface is slightly warped.

GPT Image 1.5

• + Excellent surface textures on the lunar ground and space suit
• + High cinematic detail in the background planets and nebula

• − Completely failed the negative constraint; the astronaut is riding on top of the horse
• − The anatomy of the horse's front legs is messy and fused with dust

Grok Imagine Image Pro

• + Successfully followed the specific spatial instruction for the horse to be on top
• + Vibrant colors and a more surreal composition involving a pegasus

• − The astronaut is floating underneath rather than being 'ridden' by the horse in a literal sense
• − The scale feels slightly flat compared to the depth in Model A

GPT Image 1.5

• + Excellent depiction of light rain with visible droplets on the jacket and bicycle
• + Very convincing motion blur from the passing car as requested
• + Effective 'imperfect framing' that enhances the candid, street-photography aesthetic

• − The rear bicycle wheel has some structural clipping and AI artifacts near the gear system

Grok Imagine Image Pro

• + Natural and detailed skin texture on the man's face and hands
• + Clear reflections in the puddles on the pavement
• + Accurate representation of a red Japanese-style utility bicycle

• − The 'motion blur' on the cars in the background feels static or like light trails rather than a moving vehicle
• − The scene lacks the atmosphere of rain; the man and bike look almost entirely dry

GPT Image 1.5

• + Excellent depiction of skin texture, sweat, and subtle scarring.
• + Superior lighting effects with warm torchlight glints on the metal and hair.
• + Very high level of detail on the ornate engraving and leather textures.

• − The hair braids and beads are a bit messy and less distinct than in the other model.
• − The composition is a bit more 'standard' fantasy portraiture.

Grok Imagine Image Pro

• + Impressive rendering of legible Latin text ('Lux in tenebris') on the gorget.
• + Unique hair styling with very clear beads and braided structure.
• + Great balance between the rugged character face and the highly ornate armor.

• − The skin texture appears slightly more smoothed and less 'battle-worn' than Model A.
• − The warmth of the torchlight is less integrated into the highlights of the face.

GPT Image 1.5

• + Perfectly rendered handwriting with very natural chalk texture and pressure variations.
• + Excellent adherence to the request for an elegant cursive title.
• + Highly realistic smudging and chalk dust on the board surface.

• − The board lacks a physical frame, making it feel slightly less like a physical object in a café.
• − Some letters in the smaller text at the bottom are slightly inconsistent in size.

Grok Imagine Image Pro

• + Clear and legible handwriting with good layout across the board.
• + Includes a realistic wooden frame and café background which adds to the requested atmosphere.
• + Successfully completed the truncated text 'Brown But...' with the logical 'Brown Butter Chocolate Chip Cookies'.

• − The handwriting looks slightly more 'digital' and perfect compared to the organic feel of Model A.
• − The title is in all-caps rather than the 'elegant cursive' specifically requested in the prompt.
• − The chalk texture is a bit grainy and uniform across all letters.

GPT Image 1.5

• + Successfully applied the character's clothing, face, and accessories from Image 2.
• + Followed the background and lighting style from Image 1.
• + Captures the essence of the complex leg-crossing pose.

• − The torso orientation is upright rather than hunched/horizontal like Image 1.
• − The foot anatomy is distorted with too many toes.
• − The right arm placement is simplified rather than fully extended like the source.

Grok Imagine Image Pro

• + Maintains the exact technical body position and composition of Image 1.

• − Completely failed to use the character from Image 2.
• − Ignored the instruction to change the face, hair, and clothing.
• − Simply regenerated Image 1 with minor facial tweaks.

GPT Image 1.5

• + Excellent text rendering with clear item names, descriptions, and prices
• + Functional layout that balances text and imagery like a real menu
• + High-quality, appetizing food photography that looks professional

• − The 'Mains' text is slightly cut off at the bottom
• − Grid layout for photos is less uniform than requested

Grok Imagine Image Pro

• + Very clean and precise 3x3 photo grid
• + High-quality, vibrant food images with consistent lighting
• + Minimalist aesthetic follows the visual prompt closely

• − Completely fails to include the actual menu items, descriptions, or pricing
• − Impractical as a restaurant menu without text content

GPT Image 1.5

• + Natural, curly hair texture that matches the beard style
• + Adds hair to the sideburn area seamlessly

• − Slightly alters the original facial features, making the face look a bit younger/smoother
• − Visible blending artifact near the top of the glasses frame

Grok Imagine Image Pro

• + Excellent preservation of the original facial features and skin texture
• + Perfectly maintains the background and clothing without any shifts
• + Realistic hairline and lighting integration

• − Hair looks slightly 'pasted on' on the far left side where it meets the background

GPT Image 1.5

• + Excellent depiction of fur texture and soft lighting
• + Tight, engaging composition that feels more intimate
• + Perfect adherence to the animal count and species requested

• − The butterfly scale is a bit large compared to the animals

Grok Imagine Image Pro

• + Dynamic poses showcasing movement and play
• + Beautiful wide landscape with good depth of field
• + Clean rendering of the meadow and flowers

• − Failed the prompt by including two kittens instead of one
• − The fox's tail and hind leg anatomy looks slightly awkward

GPT Image 1.5

• + Excellent character likeness preserved while applying the caricature style.
• + High visual quality with vibrant colors and professional studio lighting.
• + Clever integration of hobbies, especially the dog wearing a hockey helmet.

• − The hand holding the microphone has a slight anatomical issue with the thumb placement.

Grok Imagine Image Pro

• + Strong prompt adherence with many elements including a trophy and multiple dogs.
• + Good text rendering for 'Pups & Pucks'.
• + Effective caricature magnification of facial features.

• − Loses significant likeness of the woman in the source image.
• − Overall composition is a bit cluttered and chaotic compared to Model A.
• − The hockey stick held by the woman is thin and warped.

GPT Image 1.5

• + Excellent atmospheric lighting and glow consistent with Ghibli's 'dreamy' themes
• + Successfully captures the soft pastel palette requested in the prompt
• + Maintains the characteristic expressions and composition of the source image while stylizing them

• − The excessive glow makes some edges and details feel a bit too blurry
• − The textures feel more like digital 'noise' or sparkles than hand-painted watercolor

Grok Imagine Image Pro

• + Perfectly captures the hand-painted watercolor texture typical of Ghibli background art
• + Excellent preservation of the original image's character silhouettes and layout
• + Clean line work that mimics traditional cel animation

• − Colors are slightly less 'dreamy' or vibrant than requested
• − The lighting is flat compared to the requested 'gentle lighting' and nostalgic mood

GPT Image 1.5

• + Excellent hair motion effect that looks integrated with the person
• + Large number of leaves creates a strong sense of wind
• + High preservation of the original subjects' faces and clothing

• − Some leaves appear flat or like stickers overlaying the image
• − A few leaves have slightly unnatural coloration

Grok Imagine Image Pro

• + Leaves have more varied colors and natural shapes
• + Good hair motion that follows the wind direction
• + Maintains original image quality and details perfectly

• − Fewer leaves results in a slightly less 'energetic' feel than requested
• − A few leaves appear slightly blurry in the foreground

GPT Image 1.5

• + Excellent typography with era-appropriate flourishes.
• + Beautiful hand-drawn texture and lighting on the cloche.
• + High-quality vector emblem aesthetic with a balanced vertical layout.

• − Ignored the 'light background' instruction, opting for solid black.
• − The cloche is brown rather than a classic metallic look.

Grok Imagine Image Pro

• + Adhered perfectly to the light background and warm brown/cream color palette.
• + Excellent minimalist vector style that feels modern yet vintage.
• + Accurate rendering of the requested 'Est. 1720' banner and steam.

• − The steam element is a bit overly simplistic and disconnected.
• − The cloche is grey, which slightly clashes with the warm brown/cream theme.

GPT Image 1.5

• + Excellent illustration quality with detailed but clean vector icons.
• + Highly legible, large typography for each step.
• + Followed the color palette and flat-vector style requirements perfectly.

• − The layout is a bit cramped at the top with overlapping elements.
• − The trajectory in 'Translunar' is a bit abstracted compared to the other literal steps.

Grok Imagine Image Pro

• + Perfectly balanced, professional infographic composition.
• + Flawless text rendering and numbering for all six steps.
• + Strict adherence to the 'consistent iconography' and 'NASA-inspired palette' instructions.

• − Icons are much smaller and less detailed than Model A.
• − The background is slightly plain, feeling more like a slide than a poster.