The AI Models Index tracks model releases and real-world upgrade results....

https://blast-wiki.win/index.php/What_Was_the_Biggest_Measured_Jump_on_LMArena_in_the_Index%3F

The AI Models Index tracks model releases and real-world upgrade results. Verified public release dates help you time changes, while blind-vote checks show how models compare. With 178 releases tracked, you can spot gains and regressions before switching.