diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index f0d7ab66f..15ca87a63 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -17,10 +17,10 @@ from rich.markdown import Markdown
 
 from aider import models, prompts, utils
 from aider.commands import Commands
+from aider.history import ChatSummary
 from aider.repo import GitRepo
 from aider.repomap import RepoMap
 from aider.sendchat import send_with_retries
-from aider.history import ChatSummary
 
 from ..dump import dump  # noqa: F401
 
@@ -200,7 +200,7 @@ class Coder:
         if self.repo:
             self.repo.add_new_files(fnames)
 
-        self.summarizer = ChatSummary()
+        self.summarizer = ChatSummary(self.main_model.name)
 
         # validate the functions jsonschema
         if self.functions:
diff --git a/aider/history.py b/aider/history.py
index 6c164a076..e2441680f 100644
--- a/aider/history.py
+++ b/aider/history.py
@@ -15,6 +15,7 @@ class ChatSummary:
 
     def summarize(self, messages):
         num = len(messages)
+        dump(num)
         if num < 2:
             return messages
 
@@ -66,6 +67,8 @@ class ChatSummary:
         ]
 
         summary = simple_send_with_retries(model=models.GPT35.name, messages=messages)
+        summary = prompts.summary_prefix + summary
+        dump(summary)
 
         return [dict(role="user", content=summary)]
 
diff --git a/aider/prompts.py b/aider/prompts.py
index fd1a56d59..79915d519 100644
--- a/aider/prompts.py
+++ b/aider/prompts.py
@@ -40,3 +40,5 @@ Write *as* the user.
 The user should refer to the assistant as *you*.
 Start the summary with "I asked you...".
 """
+
+summary_prefix = "I spoke to you previously about a number of things.\n"