diff --git a/src/System.CommandLine.ApiCompatibility.Tests/ApiCompatibilityApprovalTests.System_CommandLine_api_is_not_changed.approved.txt b/src/System.CommandLine.ApiCompatibility.Tests/ApiCompatibilityApprovalTests.System_CommandLine_api_is_not_changed.approved.txt
index 3af763db30..c6480e5cc2 100644
--- a/src/System.CommandLine.ApiCompatibility.Tests/ApiCompatibilityApprovalTests.System_CommandLine_api_is_not_changed.approved.txt
+++ b/src/System.CommandLine.ApiCompatibility.Tests/ApiCompatibilityApprovalTests.System_CommandLine_api_is_not_changed.approved.txt
@@ -224,8 +224,6 @@ System.CommandLine
     public System.CommandLine.Parsing.SymbolResult FindResultFor(Symbol symbol)
     public System.CommandLine.Completions.CompletionContext GetCompletionContext()
     public System.Collections.Generic.IEnumerable<System.CommandLine.Completions.CompletionItem> GetCompletions(System.Nullable<System.Int32> position = null)
-    public System.Object GetValue(Option option)
-    public System.Object GetValue(Argument argument)
     public T GetValue<T>(Argument<T> argument)
     public T GetValue<T>(Option<T> option)
     public System.String ToString()
@@ -334,9 +332,7 @@ System.CommandLine.Invocation
     public System.CommandLine.LocalizationResources LocalizationResources { get; }
     public System.CommandLine.Parsing.Parser Parser { get; }
     public System.CommandLine.ParseResult ParseResult { get; set; }
-    public System.Object GetValue(System.CommandLine.Option option)
     public T GetValue<T>(Option<T> option)
-    public System.Object GetValue(System.CommandLine.Argument argument)
     public T GetValue<T>(Argument<T> argument)
   public delegate InvocationMiddleware : System.MulticastDelegate, System.ICloneable, System.Runtime.Serialization.ISerializable
     .ctor(System.Object object, System.IntPtr method)
@@ -432,9 +428,7 @@ System.CommandLine.Parsing
     public CommandResult FindResultFor(System.CommandLine.Command command)
     public OptionResult FindResultFor(System.CommandLine.Option option)
     public T GetValue<T>(Argument<T> argument)
-    public System.Object GetValue(System.CommandLine.Argument argument)
     public T GetValue<T>(Option<T> option)
-    public System.Object GetValue(System.CommandLine.Option option)
     public System.String ToString()
   public class Token, System.IEquatable<Token>
     public static System.Boolean op_Equality(Token left, Token right)
diff --git a/src/System.CommandLine.NamingConventionBinder.Tests/ModelBinderTests.cs b/src/System.CommandLine.NamingConventionBinder.Tests/ModelBinderTests.cs
index 950122041a..064b93a9e4 100644
--- a/src/System.CommandLine.NamingConventionBinder.Tests/ModelBinderTests.cs
+++ b/src/System.CommandLine.NamingConventionBinder.Tests/ModelBinderTests.cs
@@ -790,22 +790,6 @@ public void InvocationContext_GetValue_with_generic_option_returns_value()
             .Be(42);
     }
 
-    [Fact]
-    public void InvocationContext_GetValue_with_non_generic_option_returns_value()
-    {
-        Option option = new Option<int>("--number");
-        Command command = new("the-command")
-        {
-            option
-        };
-
-        InvocationContext invocationContext = new(command.Parse("the-command --number 42"));
-
-        invocationContext.GetValue(option)
-            .Should()
-            .Be(42);
-    }
-
     [Fact]
     public void InvocationContext_GetValue_with_generic_argument_returns_value()
     {
@@ -822,22 +806,6 @@ public void InvocationContext_GetValue_with_generic_argument_returns_value()
             .Be(42);
     }
 
-    [Fact]
-    public void InvocationContext_GetValue_with_non_generic_argument_returns_value()
-    {
-        Argument option = new Argument<int>();
-        Command command = new("the-command")
-        {
-            option
-        };
-
-        InvocationContext invocationContext = new(command.Parse("the-command 42"));
-
-        invocationContext.GetValue(option)
-            .Should()
-            .Be(42);
-    }
-
     class DeployOptions
     {
         public string Bundle { get; set; }
diff --git a/src/System.CommandLine.Tests/Binding/TypeConversionTests.cs b/src/System.CommandLine.Tests/Binding/TypeConversionTests.cs
index 891b9a7121..419d8b2fb9 100644
--- a/src/System.CommandLine.Tests/Binding/TypeConversionTests.cs
+++ b/src/System.CommandLine.Tests/Binding/TypeConversionTests.cs
@@ -238,21 +238,6 @@ public void Nullable_bool_parses_as_null_when_the_option_has_not_been_applied()
                 .Be(null);
         }
 
-        [Fact] // https://github.com/dotnet/command-line-api/issues/1647
-        public void Generic_option_bool_parses_when_passed_to_non_generic_GetValueForOption()
-        {
-            var option = new Option<bool>("-b");
-
-            var cmd = new RootCommand
-            {
-                option
-            };
-
-            var parseResult = cmd.Parse("-b");
-
-            parseResult.GetValue((Option)option).Should().Be(true);
-        }
-
         [Fact]
         public void When_exactly_one_argument_is_expected_and_none_are_provided_then_getting_value_throws()
         {
diff --git a/src/System.CommandLine/Invocation/InvocationContext.cs b/src/System.CommandLine/Invocation/InvocationContext.cs
index 89c187d307..8e133600a3 100644
--- a/src/System.CommandLine/Invocation/InvocationContext.cs
+++ b/src/System.CommandLine/Invocation/InvocationContext.cs
@@ -70,20 +70,12 @@ public IConsole Console
         /// <remarks>As the <see cref="InvocationContext"/> is passed through the invocation pipeline to the <see cref="ICommandHandler"/> associated with the invoked command, only the last value of this property will be the one applied.</remarks>
         public Action<InvocationContext>? InvocationResult { get; set; }
 
-        /// <inheritdoc cref="ParseResult.GetValue(Option)"/>
-        public object? GetValue(Option option) =>
-            ParseResult.GetValue(option);
-
-        /// <inheritdoc cref="ParseResult.GetValue(Option)"/>
+        /// <inheritdoc cref="ParseResult.GetValue{T}(Option{T})"/>
         public T? GetValue<T>(Option<T> option)
             => ParseResult.GetValue(option);
 
-        /// <inheritdoc cref="ParseResult.GetValue(Argument)"/>
-        public object? GetValue(Argument argument) =>
-            ParseResult.GetValue(argument);
-
-        /// <inheritdoc cref="ParseResult.GetValue(Argument)"/>
-        public T GetValue<T>(Argument<T> argument)
+        /// <inheritdoc cref="ParseResult.GetValue{T}(Argument{T})"/>
+        public T? GetValue<T>(Argument<T> argument)
             => ParseResult.GetValue(argument);
     }
 }
diff --git a/src/System.CommandLine/ParseResult.cs b/src/System.CommandLine/ParseResult.cs
index 9bab338295..7c377a6d51 100644
--- a/src/System.CommandLine/ParseResult.cs
+++ b/src/System.CommandLine/ParseResult.cs
@@ -120,26 +120,18 @@ CommandLineText is null
             };
 
         /// <summary>
-        /// Gets the parsed or default value for the specified option.
+        /// Gets the parsed or default value for the specified argument.
         /// </summary>
-        /// <param name="option">The option for which to get a value.</param>
+        /// <param name="argument">The argument for which to get a value.</param>
         /// <returns>The parsed value or a configured default.</returns>
-        public object? GetValue(Option option) =>
-            RootCommandResult.GetValue(option);
+        public T? GetValue<T>(Argument<T> argument)
+            => RootCommandResult.GetValue(argument);
 
         /// <summary>
-        /// Gets the parsed or default value for the specified argument.
+        /// Gets the parsed or default value for the specified option.
         /// </summary>
-        /// <param name="argument">The argument for which to get a value.</param>
+        /// <param name="option">The option for which to get a value.</param>
         /// <returns>The parsed value or a configured default.</returns>
-        public object? GetValue(Argument argument) =>
-            RootCommandResult.GetValue(argument);
-
-        /// <inheritdoc cref="GetValue(Argument)"/>
-        public T GetValue<T>(Argument<T> argument)
-            => RootCommandResult.GetValue(argument);
-        
-        /// <inheritdoc cref="GetValue(Option)"/>
         public T? GetValue<T>(Option<T> option)
             => RootCommandResult.GetValue(option);
 
diff --git a/src/System.CommandLine/Parsing/SymbolResult.cs b/src/System.CommandLine/Parsing/SymbolResult.cs
index a7ae8d5202..73f5b75b93 100644
--- a/src/System.CommandLine/Parsing/SymbolResult.cs
+++ b/src/System.CommandLine/Parsing/SymbolResult.cs
@@ -65,8 +65,8 @@ private protected SymbolResult(SymbolResultTree symbolResultTree, SymbolResult?
         /// <returns>An option result if the option was matched by the parser or has a default value; otherwise, <c>null</c>.</returns>
         public OptionResult? FindResultFor(Option option) => SymbolResultTree.FindResultFor(option);
 
-        /// <inheritdoc cref="ParseResult.GetValue(Argument)"/>
-        public T GetValue<T>(Argument<T> argument)
+        /// <inheritdoc cref="ParseResult.GetValue{T}(Argument{T})"/>
+        public T? GetValue<T>(Argument<T> argument)
         {
             if (FindResultFor(argument) is { } result &&
                 result.GetValueOrDefault<T>() is { } t)
@@ -77,19 +77,7 @@ public T GetValue<T>(Argument<T> argument)
             return (T)ArgumentConverter.GetDefaultValue(argument.ValueType)!;
         }
 
-        /// <inheritdoc cref="ParseResult.GetValue(Argument)"/>
-        public object? GetValue(Argument argument)
-        {
-            if (FindResultFor(argument) is { } result &&
-                result.GetValueOrDefault<object?>() is { } t)
-            {
-                return t;
-            }
-
-            return ArgumentConverter.GetDefaultValue(argument.ValueType);
-        }
-
-        /// <inheritdoc cref="ParseResult.GetValue(Option)"/>
+        /// <inheritdoc cref="ParseResult.GetValue{T}(Option{T})"/>
         public T? GetValue<T>(Option<T> option)
         {
             if (FindResultFor(option) is { } result &&
@@ -101,18 +89,6 @@ public T GetValue<T>(Argument<T> argument)
             return (T)ArgumentConverter.GetDefaultValue(option.Argument.ValueType)!;
         }
 
-        /// <inheritdoc cref="ParseResult.GetValue(Option)"/>
-        public object? GetValue(Option option)
-        {
-            if (FindResultFor(option) is { } result && 
-                result.GetValueOrDefault<object?>() is { } t)
-            {
-                return t;
-            }
-
-            return ArgumentConverter.GetDefaultValue(option.Argument.ValueType);
-        }
-
         internal virtual bool UseDefaultValueFor(ArgumentResult argumentResult) => false;
 
         /// <inheritdoc/>