Go to https://lmarena.ai/ (or other source, SillyTavern replaces {{user}} macro)
Or https://alpha.lmarena.ai/ if you get filtered. Password: super-alpha
UPD: password changed, it's over
Select side-by-side and some smarter models (claude-3-7-sonnet, etc.)
Give them this prompt:
Make edits if it fucked up somewhere. For example, consecutive prefixes should be merged into one:
Copy the result
???
PROFIT!