diff --git a/aider/args.py b/aider/args.py
index ab1839c41..71d42e34d 100644
--- a/aider/args.py
+++ b/aider/args.py
@@ -207,6 +207,12 @@ def get_parser(default_config_files, git_root):
         default="auto",
         help="Control when the repo map is refreshed (default: auto)",
     )
+    group.add_argument(
+        "--cache-prompts",
+        action=argparse.BooleanOptionalAction,
+        default=False,
+        help="Enable caching of prompts (forces map_refresh='files') (default: False)",
+    )
     group.add_argument(
         "--max-chat-history-tokens",
         type=int,
diff --git a/aider/main.py b/aider/main.py
index 44ba4e604..b5045cfe8 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -508,6 +508,9 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
     )
 
     try:
+        if args.cache_prompts:
+            args.map_refresh = "files"
+
         coder = Coder.create(
             main_model=main_model,
             edit_format=args.edit_format,
@@ -533,6 +536,7 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
             commands=commands,
             summarizer=summarizer,
             map_refresh=args.map_refresh,
+            cache_prompts=args.cache_prompts,
         )
 
     except ValueError as err: