diff --git a/tests/environments/groupthm/benchmark.tex b/tests/environments/groupthm/benchmark.tex
new file mode 100644
index 0000000..83b655c
--- /dev/null
+++ b/tests/environments/groupthm/benchmark.tex
@@ -0,0 +1,56 @@
+\documentclass{minimal}
+
+\usepackage{groupthm}
+\usepackage{fancythm}
+%\usepackage{tikz}
+
+\usepackage{l3benchmark}
+
+\ExplSyntaxOn
+
+\int_new:N \num
+
+\cs_generate_variant:Nn \groupthm_new_group:nn { n V }
+\cs_generate_variant:Nn \groupthm_new_theorem:nnn { n V n }
+\cs_generate_variant:Nn \groupthm_new_family:nnn { n V n }
+\cs_generate_variant:Nn \fancythm_new_theorem:nn { n V }
+
+% \benchmark:n
+%   {
+%     \groupthm_new_group:nV {} { \num }
+%     \int_incr:N \num
+%   }
+% 
+ \benchmark:n
+   {
+     \groupthm_new_theorem:nVn {} { \num } \c_false_bool
+     \int_incr:N \num
+   }
+% 
+% \benchmark:n
+%   {
+%     \groupthm_new_family:nVn {} { \num } \c_false_bool
+%     \int_incr:N \num
+%   }
+% 
+% 
+% \benchmark:n
+% {
+%   \fancythm_new_theorem:nV {} { \num }
+%   \int_incr:N \num
+% }
+
+% \benchmark:n
+% {
+%   \declaretheorem{\int_use:N \num}
+%   \int_incr:N \num
+% }
+
+\ExplSyntaxOff
+
+\begin{document}
+
+foo
+
+
+\end{document}