grep -I

 Ignore binary files

      -I     Process a binary file as if it did not contain matching
             data; this is equivalent to the
             --binary-files=without-match option

grep -i

• ack, ag, grep, egrep, fgrep, agrep, ngrep, pgrep, awk, sed, strings, tr, tail, mtail, git grep, wc, uniq, LogQL, findstr (Windows), rg, git-grep, cut
• Binary, grep -I