diff --git a/benchmark/benchmark.py b/benchmark/benchmark.py
index f05c4b039..eaf3d25e6 100755
--- a/benchmark/benchmark.py
+++ b/benchmark/benchmark.py
@@ -206,6 +206,9 @@ def main(
     read_model_settings: str = typer.Option(
         None, "--read-model-settings", help="Load aider model settings from YAML file"
     ),
+    reasoning_effort: Optional[float] = typer.Option(
+        None, "--reasoning-effort", help="Set reasoning effort for models that support it"
+    ),
     exercises_dir: str = typer.Option(
         EXERCISES_DIR_DEFAULT, "--exercises-dir", help="Directory with exercise files"
     ),
@@ -362,6 +365,7 @@ def main(
                 editor_edit_format,
                 num_ctx,
                 sleep,
+                reasoning_effort,
             )
 
             all_results.append(results)
@@ -384,6 +388,7 @@ def main(
                 replay,
                 editor_model,
                 editor_edit_format,
+                reasoning_effort,
             )
         all_results = run_test_threaded.gather(tqdm=True)
 
@@ -481,6 +486,7 @@ def summarize_results(dirname, stats_languages=None):
     res.indentation_errors = 0
     res.lazy_comments = 0
 
+    res.reasoning_effort = None
     variants = defaultdict(set)
 
     for results in all_results:
@@ -509,7 +515,10 @@ def summarize_results(dirname, stats_languages=None):
         res.syntax_errors += results.get("syntax_errors", 0)
         res.indentation_errors += results.get("indentation_errors", 0)
 
+        res.reasoning_effort = results.get("reasoning_effort")
+
         for key in "model edit_format commit_hash editor_model editor_edit_format".split():
+
             val = results.get(key)
             if val:
                 variants[key].add(val)
@@ -552,6 +561,9 @@ def summarize_results(dirname, stats_languages=None):
         setattr(res, key, val)
         console.print(f"  {key}: {val}", style=style)
 
+    if res.reasoning_effort is not None:
+        print(f"  reasoning_effort: {res.reasoning_effort}")
+
     for i in range(tries):
         print(f"  pass_rate_{i + 1}: {percents[i]:.1f}")
     for i in range(tries):
@@ -663,6 +675,7 @@ def run_test_real(
     editor_edit_format,
     num_ctx=None,
     sleep=0,
+    reasoning_effort=None,
     read_model_settings=None,
 ):
     if not os.path.isdir(testdir):
@@ -769,6 +782,9 @@ def run_test_real(
         editor_edit_format=editor_edit_format,
     )
 
+    if reasoning_effort is not None:
+        main_model.set_reasoning_effort(reasoning_effort)
+
     dump(main_model.max_chat_history_tokens)
 
     if num_ctx:
@@ -919,6 +935,7 @@ def run_test_real(
         syntax_errors=syntax_errors,
         indentation_errors=indentation_errors,
         lazy_comments=lazy_comments,  # Add the count of pattern matches to the results
+        reasoning_effort=reasoning_effort,
         chat_hashes=list(
             zip(
                 coder.chat_completion_call_hashes,