diff --git a/README.md b/README.md
index cbc7e1b42..b17dcab45 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,17 @@ aider <file1> <file2> ...
 
 Replace `<file1>`, `<file2>`, etc., with the paths to the source code files you want to work on.
 
-You can also use additional command-line options to customize the behavior of the tool. For more information, run `aider --help`. Many defaults can be set with `.env` or environment variables, see the help output.
+You can also use additional command-line options to customize the behavior of the tool. The following options are available:
+
+- `--history-file HISTORY_FILE`: Specify the history file (default: .aider.history, AIDER_HISTORY_FILE).
+- `--model MODEL`: Specify the model to use for the main chat (default: gpt-4).
+- `-3`: Use gpt-3.5-turbo model for the main chat (basically won't work).
+- `--no-pretty`: Disable pretty, colorized output (AIDER_PRETTY).
+- `--apply FILE`: Apply the changes from the given file instead of running the chat.
+- `--commit-dirty`: On launch, commit dirty files w/o confirmation (default: False, AIDER_COMMIT_DIRTY).
+- `--show-diffs`: Show diffs when committing changes (default: False, AIDER_SHOW_DIFFS).
+
+For more information, run `aider --help`. Many defaults can be set with `.env` or environment variables, see the help output.
 
 ## Commands