>>108846891
>>108846853
>>108846976
>>108847007
I ran tests on https://i.4cdn.org/g/1779059873237001.png and the numbers on the left are the file sizes (smaller is better) :
182,144 eboy-tokyo (cwebp -metadata all -z 9 -mt).webp
182,144 eboy-tokyo (cwebp -metadata all -z 9 ).webp
222,433 eboy-tokyo (cjxl -q 100 -e 9).jxl
234,461 eboy-tokyo (cjxl -q 100 -e 8).jxl
250,199 eboy-tokyo (oxipng -pZ -o max).png
251,319 eboy-tokyo (oxipng -p -o max).png
288,733 eboy-tokyo (cjxl -q 100 -e 7).jxl
418,334 eboy-tokyo.png
642,002 eboy-tokyo (avifenc -l -s 0 -j all).avif
642,002 eboy-tokyo (avifenc -l -s 0 ).avif
645,925 eboy-tokyo (avifenc -l -s 3 ).avif
645,925 eboy-tokyo (avifenc -l -s 3 -j all).avif
647,496 eboy-tokyo (avifenc -l -s 1 -j all).avif
647,496 eboy-tokyo (avifenc -l -s 1 ).avif
647,601 eboy-tokyo (avifenc -l -s 2 ).avif
647,601 eboy-tokyo (avifenc -l -s 2 -j all).avif
653,885 eboy-tokyo (avifenc -l -s 4 ).avif
653,885 eboy-tokyo (avifenc -l -s 4 -j all).avif
681,574 eboy-tokyo (avifenc -l -s 5 ).avif
681,574 eboy-tokyo (avifenc -l -s 5 -j all).avif
710,716 eboy-tokyo (avifenc -l -s 6 -j all).avif
710,716 eboy-tokyo (avifenc -l -s 6 ).avif
this was the script I used: https://litter.catbox.moe/9pxvl997rvt7kg3y.fish