diff --git a/extra/benchmark/unicode/unicode.factor b/extra/benchmark/unicode/unicode.factor
new file mode 100644
index 0000000000..8b793f8fe1
--- /dev/null
+++ b/extra/benchmark/unicode/unicode.factor
@@ -0,0 +1,15 @@
+! Copyright (C) 2012 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license.
+USING: kernel math random sequences strings unicode.case ;
+IN: benchmark.unicode
+
+: crazy-unicode-string ( -- string )
+    8 [ 8 0xffff random-integers ] replicate " " join ;
+
+: unicode-benchmark ( -- )
+    crazy-unicode-string 8 [
+        [ >title ] [ >lower ] [ >upper ] tri 3append
+        ! [ >lower ] [ >upper ] bi append
+    ] times drop ;
+
+MAIN: unicode-benchmark