diff --git a/aider/main.py b/aider/main.py
index 294da569e..f66114709 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -507,7 +507,14 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
         return 1
 
     if args.show_model_warnings:
-        models.sanity_check_models(io, main_model)
+        problem = models.sanity_check_models(io, main_model)
+        if problem:
+            io.tool_output("You can skip this sanity check with --no-show-model-warnings")
+            try:
+                if not io.confirm_ask("Proceed anyway?"):
+                    return 1
+            except KeyboardInterrupt:
+                return 1
 
     repo = None
     if args.git:
diff --git a/aider/models.py b/aider/models.py
index bcbd08053..535368c2c 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -730,9 +730,11 @@ def validate_variables(vars):
 
 
 def sanity_check_models(io, main_model):
-    sanity_check_model(io, main_model)
+    problem_weak = None
+    problem_strong = sanity_check_model(io, main_model)
     if main_model.weak_model and main_model.weak_model is not main_model:
-        sanity_check_model(io, main_model.weak_model)
+        problem_weak = sanity_check_model(io, main_model.weak_model)
+    return problem_strong or problem_weak
 
 
 def sanity_check_model(io, model):
@@ -771,6 +773,8 @@ def sanity_check_model(io, model):
     if show:
         io.tool_output(f"For more info, see: {urls.model_warnings}\n")
 
+    return show
+
 
 def fuzzy_match_models(name):
     name = name.lower()