diff --git a/src/sinol_make/commands/verify/__init__.py b/src/sinol_make/commands/verify/__init__.py
index 76c4b4cc..37a1fad2 100644
--- a/src/sinol_make/commands/verify/__init__.py
+++ b/src/sinol_make/commands/verify/__init__.py
@@ -50,6 +50,12 @@ def configure_subparser(self, subparser):
                                  'This flag will be passed to the run command.')
         parsers.add_time_tool_argument(parser)
         parsers.add_compilation_arguments(parser)
+        parser.add_argument('--no-gen', action='store_true', default=False,
+                            help='do not generate tests')
+        parser.add_argument('--no-ingen', action='store_true', default=False,
+                            help='do not generate input tests')
+        parser.add_argument('--no-outgen', action='store_true', default=False,
+                            help='do not generate output tests')
 
     def correct_contest_type(self):
         if self.args.expected_contest_type is not None:
@@ -151,10 +157,16 @@ def run(self, args: argparse.Namespace):
         self.run_stresstests()
 
         # Generate tests
-        print(util.bold(' Generating tests '.center(util.get_terminal_size()[1], '=')))
-        gen = GenCommand()
-        gen.run(self.prepare_args(gen))
-        self.verify_scores(package_util.get_groups(package_util.get_all_inputs(self.task_id), self.task_id))
+        if not self.args.no_gen and (not self.args.no_ingen or not self.args.no_outgen):
+            print(util.bold(' Generating tests '.center(util.get_terminal_size()[1], '=')))
+            gen = GenCommand()
+            args = self.prepare_args(gen)
+            if self.args.no_ingen:
+                args.only_outputs = True
+            if self.args.no_outgen:
+                args.only_inputs = True
+            gen.run(args)
+            self.verify_scores(package_util.get_groups(package_util.get_all_inputs(self.task_id), self.task_id))
 
         # Generate problem statements
         print(util.bold(' Generating problem statements '.center(util.get_terminal_size()[1], '=')))
diff --git a/tests/commands/verify/test_integration.py b/tests/commands/verify/test_integration.py
index d6b39d9a..8402c6af 100644
--- a/tests/commands/verify/test_integration.py
+++ b/tests/commands/verify/test_integration.py
@@ -148,3 +148,29 @@ def test_expected_contest_and_no_scores(capsys, create_package):
         assert e.value.code == 1
         out = capsys.readouterr().out
         assert "Scores are not defined in config.yml." in out
+
+
+@pytest.mark.parametrize("create_package", [util.get_simple_package_path()], indirect=True)
+def test_no_gen_parameters(capsys, create_package):
+    """
+    Test if --no-gen, --no-ingen and --no-outgen flags work correctly.
+    """
+    with pytest.raises(SystemExit) as e:
+        run(["--no-gen"])
+    assert e.value.code == 1
+    out = capsys.readouterr().out
+    assert "There are no tests to run." in out
+    assert not os.path.exists(os.path.join(create_package, "in", "abc2a.in"))
+    assert not os.path.exists(os.path.join(create_package, "out", "abc2a.out"))
+
+    with pytest.raises(SystemExit) as e:
+        run(["--no-outgen"])
+    assert e.value.code == 1
+    out = capsys.readouterr().out
+    assert "There are tests without outputs." in out
+    assert os.path.exists(os.path.join(create_package, "in", "abc2a.in"))
+    assert not os.path.exists(os.path.join(create_package, "out", "abc2a.out"))
+
+    run(["--no-ingen"])
+    assert os.path.exists(os.path.join(create_package, "in", "abc2a.in"))
+    assert os.path.exists(os.path.join(create_package, "out", "abc2a.out"))