diff --git a/aider/models.py b/aider/models.py
index df82ec454..041597668 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -277,6 +277,8 @@ MODEL_SETTINGS = [
         "anthropic/claude-3-5-sonnet-20240620",
         "diff",
         weak_model_name="claude-3-haiku-20240307",
+        junior_model_name="anthropic/claude-3-5-sonnet-20240620",
+        junior_edit_format="diff",
         use_repo_map=True,
         examples_as_sys_msg=True,
         max_tokens=8192,
@@ -310,6 +312,8 @@ MODEL_SETTINGS = [
         "openrouter/anthropic/claude-3.5-sonnet",
         "diff",
         weak_model_name="openrouter/anthropic/claude-3-haiku-20240307",
+        junior_model_name="openrouter/anthropic/claude-3.5-sonnet",
+        junior_edit_format="diff",
         use_repo_map=True,
         examples_as_sys_msg=True,
         accepts_images=True,
@@ -323,6 +327,8 @@ MODEL_SETTINGS = [
         "vertex_ai/claude-3-5-sonnet@20240620",
         "diff",
         weak_model_name="vertex_ai/claude-3-haiku@20240307",
+        junior_model_name="vertex_ai/claude-3-5-sonnet@20240620",
+        junior_edit_format="diff",
         use_repo_map=True,
         examples_as_sys_msg=True,
         accepts_images=True,