whatmodel.sh / image / Stable Diffusion v2.1

Stable Diffusion v2.1 is an open-weights image model from Stability AI, released December 2022.

Model information sources

Release date ↗

29.3±1.7comparison only: no current run option verifiedfrom 7 benchmark results across 7 sources

Score within the LMArena text-to-image comparison set only.

$ how it compares

The image models ranked either side of Stable Diffusion v2.1, out of 197 with a score, then more from Stability AI.

#modelscorewhereRAMreleased
178Dreamlike Photoreal 2.0 Dreamlike.art30±3local~2.1GB2023-01
179AnyEdit (AnySD) Zhejiang University / NUS (AnyEdit)30±4comparison only2025-02
180Stable Diffusion v2.1 Stability AI29±2comparison only2022-12
181Stable Diffusion v2.0 Stability AI29±3comparison only2022-11
182Versatile Diffusion v1.0 SHI Labs29±4local~7.2GB2022-11
more from Stability AI
137Stable Diffusion 3.5 Large Stability AI42±1api $0.065/image +local~5.4GB2024-10
141Stable Diffusion 3.5 Medium Stability AI41±3api $0.035/image +local~20GB2024-10
148Stable Diffusion XL 0.9 (base) Stability AI40±6local~4.9GB2023-06

see all image models · find the ones that fit your machine

$ what it's good at

text to image▁▂▇▇▆▅█▇▂▃▁▁ #147 of 157 · 80% of its score · 6 tests

Trails CogView2, DALL·E Mega (minDALL-E), Versatile Diffusion v1.0 here, though they rank lower overall.

testresultvs the others in its rundifficultycountswhy
EvalMuse-40K model ranking (FGA-BLIP2 overall alignment)2.42 / 5 ✎█▄·▄██▄▄█▄▄▄ beats 2/14easy · avg 3.83 / 5▇▇▇▇▇▇▇▇ 20%at its level
GenEval50.0% ✎▅█···▅▃▃▃··▃ beats 5/10easy · avg 79%▇▇▇▇▇▇▇▇ 20%at its level
ConceptMix (k=2 full-mark score)29.0% ✎▄·▄·█▄▄▄···▄ beats 1/7easy · avg 66%▇▇▇▇▇▇ 15%at its level
TIFA v1.0 (overall, mPLUG VQA)82.0% ✎█·······▄▄▄▄ beats 5/5very easy · avg 95%▇▇▇▇▇ 13%typical
GeckoNum Task 1: exact number generation (human-annotated)25.8% ✎██·█·······█ beats 2/3medium · avg 51%▇▇▇ 7.4%typical
WISE (WiScore overall, GPT-4o judge)32.0% ✎▄·▆▂▆█▄▆▂▄·▄ beats 3/22medium · avg 60%▇▇ 5.3%at its level
other tests1 not in a task · 19% of its score
testresultvs the others in its rundifficultycountswhy
EvalAlign human text-image alignment score4.8000 mean human alignment score ✎█▄▄·█·▄█▄▄·▄ beats 4/11avg 6.285 mean human alignment score▇▇▇▇▇▇▇▇ 19%typical

$ where to run it

No verified API or download recorded yet · add one

$ how the score was worked out · EvalMuse-40K: A Reliable and… 20%, GenEval authors' results: djg… 20%, EvalAlign: Supervised Fine-Tu… 19% and 4 more

Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works

$ improve this page

Use a short GitHub form or edit the data through a pull request. Every number needs a source; here's which ones we can use.

data updated · sources and licences · json