diff --git a/chatmastermind/main.py b/chatmastermind/main.py
index 2e0cce1..cc634fc 100755
--- a/chatmastermind/main.py
+++ b/chatmastermind/main.py
@@ -8,7 +8,7 @@ import argcomplete
 import argparse
 import pathlib
 from .utils import terminal_width, print_tag_args, print_chat_hist, display_source_code, print_tags_frequency, ConfigType
-from .storage import save_answers, create_chat_hist, get_tags, get_tags_unique, read_file, read_config, dump_data
+from .storage import save_answers, create_chat_hist, get_tags, get_tags_unique, read_file, read_config, write_config, dump_data
 from .api_client import ai, openai_api_key, print_models
 from itertools import zip_longest
 
@@ -63,12 +63,20 @@ def tag_cmd(args: argparse.Namespace, config: ConfigType) -> None:
         print_tags_frequency(get_tags(config, None))
 
 
-def model_cmd(args: argparse.Namespace, config: ConfigType) -> None:
+def config_cmd(args: argparse.Namespace, config: ConfigType) -> None:
     """
-    Handler for the 'model' command.
+    Handler for the 'config' command.
     """
-    if args.list:
+    if type(config['openai']) is not dict:
+        raise RuntimeError('Configuration openai is not a dict.')
+
+    if args.list_models:
         print_models()
+    elif args.show_model:
+        print(config['openai']['model'])
+    elif args.model:
+        config['openai']['model'] = args.model
+        write_config(args.config, config)
 
 
 def ask_cmd(args: argparse.Namespace, config: ConfigType) -> None:
@@ -188,12 +196,16 @@ def create_parser() -> argparse.ArgumentParser:
     tag_cmd_parser.add_argument('-l', '--list', help="List all tags and their frequency",
                                 action='store_true')
 
-    # 'model' command parser
-    model_cmd_parser = cmdparser.add_parser('model',
-                                            help="Manage models.")
-    model_cmd_parser.set_defaults(func=model_cmd)
-    model_cmd_parser.add_argument('-l', '--list', help="List all available models",
-                                  action='store_true')
+    # 'config' command parser
+    config_cmd_parser = cmdparser.add_parser('config',
+                                             help="Manage configuration")
+    config_cmd_parser.set_defaults(func=config_cmd)
+    config_group = config_cmd_parser.add_mutually_exclusive_group(required=True)
+    config_group.add_argument('-L', '--list-models', help="List all available models",
+                              action='store_true')
+    config_group.add_argument('-m', '--show-model', help="Show current model",
+                              action='store_true')
+    config_group.add_argument('-M', '--model', help="Set model in the config file")
 
     # 'print' command parser
     print_cmd_parser = cmdparser.add_parser('print',