Evaluating Stable Diffusion 3 (SD3) Large and Medium, and SDXL with a Body Positions Prompt Challenge
Here I evaluate how well SD3 Large, SD3 Medium and SDXL models handle different body positions. I was rating both the the anatomical correctness and the overall quality of the image.
TLDR: My results show that for anatomical correctness none of the models perform well, but SD3 Large was slightly better. For overall image quality, SD3 Large is the clear winner.
To conduct the test I've used ChatGPT-4o to generate prompts for different body positions across various categories: sports, dance, everyday activities, fitness, martial arts, entertainment, and leisure.
I tested over 30 prompts, each prompt tests a specific challenge. I then rated all images, gathered showcases and here are the results.
While none of the models does a great job, SD3 Large in the winner for anatomical correctness. SD3 Medium is arguably worse than SDXL. For overall image quality, SD3 Large is the clear winner.
The challenge was to generate images of people in basic and complicated body positions across various categories: sports, dance, everyday activities, fitness, martial arts, entertainment, and leisure.
__model prompt | Stable Diffusion 3 Large | Stable Diffusion 3 Medium | Stable Diffusion XL |
A Taekwondo practitioner in a high front kick, one leg extended upwards |  |  |  |
A ballerina in a pirouette, one leg raised, arms gracefully curved |  |  |  |
A band on stage, each member playing an instrument, lead singer mid-song |  |  |  |
A basketball player in mid-air slam dunk, arms stretched towards the hoop |  |  |  |
A boxer in a defensive stance, fists up, body slightly turned |  |  |  |
A chef chopping vegetables, one hand holding the knife, the other holding the food |  |  |  |
A couple in a salsa dance dip, one partner leaning back supported by the other |  |  |  |
A cyclist riding a bike, bent forward, hands on the handlebars, legs pedaling |  |  |  |
A family gathered around a table, each person engaged in conversation, some reaching for food |  |  |  |
A fitness class doing aerobics, all participants moving in sync, arms and legs in motion |  |  |  |
A football player mid-kick, leg extended, with focused expression |  |  |  |
A football team huddled together, strategizing with intense expressions |  |  |  |
A gardener kneeling on one knee, planting flowers with a small shovel |  |  |  |
A group of dancers performing a synchronized routine, mid-jump, arms and legs |  |  |  |
A group of friends having a picnic, some sitting on a blanket, others standing and chatting |  |  |  |
A hip-hop dancer mid-breakdance move, hand on the ground, legs in the air |  |  |  |
A martial artist mid-karate kick, one leg extended high, arms in guard position |  |  |  |
A musician standing and playing an electric guitar, strumming with one hand |  |  |  |
A person in a plank position doing a push-up, arms bent, body parallel to the ground |  |  |  |
A person in a yoga warrior pose, one leg forward, arms extended parallel to the floor |  |  |  |
A person sitting cross-legged on the floor, engrossed in a book |  |  |  |
A runner sprinting, one leg extended forward, arms pumping |  |  |  |
A singer holding a microphone with one hand, the other hand extended outwards |  |  |  |
A swimmer diving into a pool, body arched, arms extended forward |  |  |  |
A weightlifter in a squat position, holding a barbell across their shoulders |  |  |  |
A woman lying in the grass |  |  |  |
An actor in a dramatic pose, one hand on their heart, the other extended upwards |  |  |  |
Two martial artists sparring, one mid-kick, the other dodging with raised arms |  |  |  |
Two people standing side by side, one flexing their arm to show muscle definition, the other relaxed
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