diff --git a/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs b/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs
index aabc8078609..cf7df564e73 100644
--- a/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs
@@ -23,7 +23,7 @@ namespace Microsoft.Extensions.AI;
 
 /// <summary>Represents a delegating chat client that implements the OpenTelemetry Semantic Conventions for Generative AI systems.</summary>
 /// <remarks>
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.29, defined at <see href="https://opentelemetry.io/docs/specs/semconv/gen-ai/" />.
+/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.30, defined at <see href="https://opentelemetry.io/docs/specs/semconv/gen-ai/" />.
 /// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
 /// </remarks>
 public sealed partial class OpenTelemetryChatClient : DelegatingChatClient
@@ -251,6 +251,11 @@ public override async IAsyncEnumerable<StreamingChatCompletionUpdate> CompleteSt
                         _ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.PresencePenalty, presencePenalty);
                     }
 
+                    if (options.Seed is long seed)
+                    {
+                        _ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.Seed, seed);
+                    }
+
                     if (options.StopSequences is IList<string> stopSequences)
                     {
                         _ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.StopSequences, $"[{string.Join(", ", stopSequences.Select(s => $"\"{s}\""))}]");
@@ -285,11 +290,6 @@ public override async IAsyncEnumerable<StreamingChatCompletionUpdate> CompleteSt
                             _ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.PerProvider(_system, "response_format"), responseFormat);
                         }
 
-                        if (options.Seed is long seed)
-                        {
-                            _ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.PerProvider(_system, "seed"), seed);
-                        }
-
                         if (options.AdditionalProperties is { } props)
                         {
                             // Log all additional request options as per-provider tags. This is non-normative, but it covers cases where
diff --git a/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs b/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs
index 8bb38bf2e07..497e87f2d7a 100644
--- a/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs
@@ -16,7 +16,7 @@ namespace Microsoft.Extensions.AI;
 
 /// <summary>Represents a delegating embedding generator that implements the OpenTelemetry Semantic Conventions for Generative AI systems.</summary>
 /// <remarks>
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.29, defined at <see href="https://opentelemetry.io/docs/specs/semconv/gen-ai/" />.
+/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.30, defined at <see href="https://opentelemetry.io/docs/specs/semconv/gen-ai/" />.
 /// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
 /// </remarks>
 /// <typeparam name="TInput">The type of input used to produce embeddings.</typeparam>
diff --git a/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs b/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs
index 4c40c04c236..031d88a140f 100644
--- a/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs
@@ -66,6 +66,7 @@ public static class Request
             public const string Model = "gen_ai.request.model";
             public const string MaxTokens = "gen_ai.request.max_tokens";
             public const string PresencePenalty = "gen_ai.request.presence_penalty";
+            public const string Seed = "gen_ai.request.seed";
             public const string StopSequences = "gen_ai.request.stop_sequences";
             public const string Temperature = "gen_ai.request.temperature";
             public const string TopK = "gen_ai.request.top_k";
diff --git a/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs b/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs
index 1d99cb60731..d9dace62191 100644
--- a/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs
+++ b/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs
@@ -167,7 +167,7 @@ async static IAsyncEnumerable<StreamingChatCompletionUpdate> CallbackAsync(
         Assert.Equal("""["hello", "world"]""", activity.GetTagItem("gen_ai.request.stop_sequences"));
         Assert.Equal("value1", activity.GetTagItem("gen_ai.testservice.request.service_tier"));
         Assert.Equal("value2", activity.GetTagItem("gen_ai.testservice.request.something_else"));
-        Assert.Equal(42L, activity.GetTagItem("gen_ai.testservice.request.seed"));
+        Assert.Equal(42L, activity.GetTagItem("gen_ai.request.seed"));
 
         Assert.Equal("id123", activity.GetTagItem("gen_ai.response.id"));
         Assert.Equal("""["stop"]""", activity.GetTagItem("gen_ai.response.finish_reasons"));