diff --git a/src/Libraries/Microsoft.Extensions.AI/Embeddings/AnonymousDelegatingEmbeddingGenerator.cs b/src/Libraries/Microsoft.Extensions.AI/Embeddings/AnonymousDelegatingEmbeddingGenerator.cs
index 9dd838be42e..0f6c696bd0d 100644
--- a/src/Libraries/Microsoft.Extensions.AI/Embeddings/AnonymousDelegatingEmbeddingGenerator.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/Embeddings/AnonymousDelegatingEmbeddingGenerator.cs
@@ -12,7 +12,7 @@ namespace Microsoft.Extensions.AI;
 /// <summary>A delegating embedding generator that wraps an inner generator with implementations provided by delegates.</summary>
 /// <typeparam name="TInput">The type from which embeddings will be generated.</typeparam>
 /// <typeparam name="TEmbedding">The type of embeddings to generate.</typeparam>
-public sealed class AnonymousDelegatingEmbeddingGenerator<TInput, TEmbedding> : DelegatingEmbeddingGenerator<TInput, TEmbedding>
+internal sealed class AnonymousDelegatingEmbeddingGenerator<TInput, TEmbedding> : DelegatingEmbeddingGenerator<TInput, TEmbedding>
     where TEmbedding : Embedding
 {
     /// <summary>The delegate to use as the implementation of <see cref="GenerateAsync"/>.</summary>
diff --git a/test/Libraries/Microsoft.Extensions.AI.Tests/Embeddings/UseDelegateEmbeddingGeneratorTests.cs b/test/Libraries/Microsoft.Extensions.AI.Tests/Embeddings/UseDelegateEmbeddingGeneratorTests.cs
index ab178727cb9..1109cbc581a 100644
--- a/test/Libraries/Microsoft.Extensions.AI.Tests/Embeddings/UseDelegateEmbeddingGeneratorTests.cs
+++ b/test/Libraries/Microsoft.Extensions.AI.Tests/Embeddings/UseDelegateEmbeddingGeneratorTests.cs
@@ -19,13 +19,6 @@ public void InvalidArgs_Throws()
 
         Assert.Throws<ArgumentNullException>("generateFunc", () =>
             builder.Use((Func<IEnumerable<string>, EmbeddingGenerationOptions?, IEmbeddingGenerator<string, Embedding<float>>, CancellationToken, Task<GeneratedEmbeddings<Embedding<float>>>>)null!));
-
-        Assert.Throws<ArgumentNullException>("innerGenerator", () =>
-            new AnonymousDelegatingEmbeddingGenerator<string, Embedding<float>>(
-                null!, (values, options, innerGenerator, cancellationToken) => Task.FromResult(new GeneratedEmbeddings<Embedding<float>>(Array.Empty<Embedding<float>>()))));
-
-        Assert.Throws<ArgumentNullException>("generateFunc", () =>
-            new AnonymousDelegatingEmbeddingGenerator<string, Embedding<float>>(generator, null!));
     }
 
     [Fact]