diff --git a/aider/coders/ask_prompts.py b/aider/coders/ask_prompts.py
index a137a9403..a6b25cc1d 100644
--- a/aider/coders/ask_prompts.py
+++ b/aider/coders/ask_prompts.py
@@ -5,8 +5,7 @@ from .base_prompts import CoderPrompts
 
 class AskPrompts(CoderPrompts):
     main_system = """Act as an expert code analyst.
-Answer questions about the supplied code.
-Explain any needed code changes clearly but concisely.
+Explain all needed code changes clearly and completely, but concisely.
 
 Always reply to the user in the same language they are using.
 """
diff --git a/aider/coders/wholefile_prompts.py b/aider/coders/wholefile_prompts.py
index e34513643..c124ad22f 100644
--- a/aider/coders/wholefile_prompts.py
+++ b/aider/coders/wholefile_prompts.py
@@ -4,7 +4,7 @@ from .base_prompts import CoderPrompts
 
 
 class WholeFilePrompts(CoderPrompts):
-    main_system = """Act as an expert software developer.
+    main_system = """Act as an expert software developer and make changes to source code.
 {lazy_prompt}
 Output a copy of each file that needs changes.
 """
diff --git a/benchmark/benchmark.py b/benchmark/benchmark.py
index 25e55bd07..c4061ea09 100755
--- a/benchmark/benchmark.py
+++ b/benchmark/benchmark.py
@@ -550,9 +550,9 @@ def run_test_real(
     )
 
     ask_model = models.Model("openrouter/anthropic/claude-3.5-sonnet")
-    # ask_model = models.Model("openrouter/anthropic/claude-3.5-sonnet")
+    whole_model = models.Model("openrouter/anthropic/claude-3.5-sonnet")
     # ask_model = models.Model("openrouter/deepseek/deepseek-chat")
-    whole_model = models.Model("openrouter/deepseek/deepseek-chat")
+    # whole_model = models.Model("openrouter/deepseek/deepseek-chat")
 
     main_model = ask_model
     edit_format = "ask-whole"
@@ -601,20 +601,22 @@ def run_test_real(
 
             coder.apply_updates()
         else:
+            """
             coder = Coder.create(
                 from_coder=coder,
                 main_model=ask_model,
                 edit_format="ask",
                 **coder_kwargs,
             )
+            """
             response = coder.run(with_message=instructions, preproc=False)
-            coder = Coder.create(
+            whole_coder = Coder.create(
                 from_coder=coder,
                 main_model=whole_model,
                 edit_format="whole",
                 **coder_kwargs,
             )
-            response = coder.run(with_message="make those changes", preproc=False)
+            response = whole_coder.run(with_message="make those changes", preproc=False)
 
         dur += time.time() - start