diff --git a/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs b/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs
index 326503bc04d..176aad9c2de 100644
--- a/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryChatClient.cs
@@ -22,7 +22,7 @@ namespace Microsoft.Extensions.AI;
/// Represents a delegating chat client that implements the OpenTelemetry Semantic Conventions for Generative AI systems.
///
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.41, defined at .
+/// This class provides an implementation of the GenAI Semantic Conventions v1.41, defined at .
/// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
///
public sealed partial class OpenTelemetryChatClient : DelegatingChatClient
@@ -353,6 +353,24 @@ public override async IAsyncEnumerable GetStreamingResponseA
_ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.TopP, top_p);
}
+ if (options.Reasoning?.Effort is ReasoningEffort reasoningEffort)
+ {
+ string? reasoningLevel = reasoningEffort switch
+ {
+ ReasoningEffort.None => "none",
+ ReasoningEffort.Low => "low",
+ ReasoningEffort.Medium => "medium",
+ ReasoningEffort.High => "high",
+ ReasoningEffort.ExtraHigh => "extrahigh",
+ _ => null,
+ };
+
+ if (reasoningLevel is not null)
+ {
+ _ = activity.AddTag(OpenTelemetryConsts.GenAI.Request.ReasoningLevel, reasoningLevel);
+ }
+ }
+
if (options.ResponseFormat is not null)
{
switch (options.ResponseFormat)
diff --git a/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryImageGenerator.cs b/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryImageGenerator.cs
index a20b512c7b0..b431718fce0 100644
--- a/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryImageGenerator.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/ChatCompletion/OpenTelemetryImageGenerator.cs
@@ -20,7 +20,7 @@ namespace Microsoft.Extensions.AI;
/// Represents a delegating image generator that implements the OpenTelemetry Semantic Conventions for Generative AI systems.
///
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.41, defined at .
+/// This class provides an implementation of the GenAI Semantic Conventions v1.41, defined at .
/// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
///
[Experimental(DiagnosticIds.Experiments.AIImageGeneration, UrlFormat = DiagnosticIds.UrlFormat)]
diff --git a/src/Libraries/Microsoft.Extensions.AI/Common/OtelMessageSerializer.cs b/src/Libraries/Microsoft.Extensions.AI/Common/OtelMessageSerializer.cs
index c5916379508..b1f2a6d1e0c 100644
--- a/src/Libraries/Microsoft.Extensions.AI/Common/OtelMessageSerializer.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/Common/OtelMessageSerializer.cs
@@ -268,6 +268,7 @@ internal static string SerializeChatMessages(
topLevel.Equals("image", StringComparison.OrdinalIgnoreCase) ? "image" :
topLevel.Equals("audio", StringComparison.OrdinalIgnoreCase) ? "audio" :
topLevel.Equals("video", StringComparison.OrdinalIgnoreCase) ? "video" :
+ topLevel.Equals("application", StringComparison.OrdinalIgnoreCase) ? "document" :
null;
}
}
diff --git a/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs b/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs
index 090332b255f..575d7766396 100644
--- a/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/Embeddings/OpenTelemetryEmbeddingGenerator.cs
@@ -18,7 +18,7 @@ namespace Microsoft.Extensions.AI;
/// Represents a delegating embedding generator that implements the OpenTelemetry Semantic Conventions for Generative AI systems.
///
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.41, defined at .
+/// This class provides an implementation of the GenAI Semantic Conventions v1.41, defined at .
/// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
///
/// The type of input used to produce embeddings.
diff --git a/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs b/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs
index 302cfd89314..f244ff180ae 100644
--- a/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/OpenTelemetryConsts.cs
@@ -128,6 +128,7 @@ 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 ReasoningLevel = "gen_ai.request.reasoning.level";
public const string Seed = "gen_ai.request.seed";
public const string StopSequences = "gen_ai.request.stop_sequences";
public const string Stream = "gen_ai.request.stream";
diff --git a/src/Libraries/Microsoft.Extensions.AI/Realtime/OpenTelemetryRealtimeClientSession.cs b/src/Libraries/Microsoft.Extensions.AI/Realtime/OpenTelemetryRealtimeClientSession.cs
index a7f78f9e9a6..eb322201768 100644
--- a/src/Libraries/Microsoft.Extensions.AI/Realtime/OpenTelemetryRealtimeClientSession.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/Realtime/OpenTelemetryRealtimeClientSession.cs
@@ -24,7 +24,7 @@ namespace Microsoft.Extensions.AI;
/// Represents a delegating realtime session that follows the OpenTelemetry Semantic Conventions for Generative AI systems where applicable.
///
///
-/// This class follows the patterns of the Semantic Conventions for Generative AI systems v1.41 where applicable, as defined at
+/// This class follows the patterns of the GenAI Semantic Conventions v1.41 where applicable, as defined at
/// , with custom extensions for realtime-specific behavior.
/// The specification does not currently define a realtime operation; a custom operation name is used.
///
diff --git a/src/Libraries/Microsoft.Extensions.AI/SpeechToText/OpenTelemetrySpeechToTextClient.cs b/src/Libraries/Microsoft.Extensions.AI/SpeechToText/OpenTelemetrySpeechToTextClient.cs
index 82ece57f673..e5c79923fa5 100644
--- a/src/Libraries/Microsoft.Extensions.AI/SpeechToText/OpenTelemetrySpeechToTextClient.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/SpeechToText/OpenTelemetrySpeechToTextClient.cs
@@ -22,7 +22,7 @@ namespace Microsoft.Extensions.AI;
/// Represents a delegating speech-to-text client that implements the OpenTelemetry Semantic Conventions for Generative AI systems.
///
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.41, defined at .
+/// This class provides an implementation of the GenAI Semantic Conventions v1.41, defined at .
/// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
///
[Experimental(DiagnosticIds.Experiments.AISpeechToText, UrlFormat = DiagnosticIds.UrlFormat)]
diff --git a/src/Libraries/Microsoft.Extensions.AI/TextToSpeech/OpenTelemetryTextToSpeechClient.cs b/src/Libraries/Microsoft.Extensions.AI/TextToSpeech/OpenTelemetryTextToSpeechClient.cs
index 3cf4eed611d..9d57d81012b 100644
--- a/src/Libraries/Microsoft.Extensions.AI/TextToSpeech/OpenTelemetryTextToSpeechClient.cs
+++ b/src/Libraries/Microsoft.Extensions.AI/TextToSpeech/OpenTelemetryTextToSpeechClient.cs
@@ -21,7 +21,7 @@ namespace Microsoft.Extensions.AI;
/// Represents a delegating text-to-speech client that implements the OpenTelemetry Semantic Conventions for Generative AI systems.
///
-/// This class provides an implementation of the Semantic Conventions for Generative AI systems v1.41, defined at .
+/// This class provides an implementation of the GenAI Semantic Conventions v1.41, defined at .
/// The specification is still experimental and subject to change; as such, the telemetry output by this client is also subject to change.
///
[Experimental(DiagnosticIds.Experiments.AITextToSpeech, UrlFormat = DiagnosticIds.UrlFormat)]
diff --git a/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs b/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs
index 6ef724f7c66..7e8d0cae5bd 100644
--- a/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs
+++ b/test/Libraries/Microsoft.Extensions.AI.Tests/ChatCompletion/OpenTelemetryChatClientTests.cs
@@ -131,6 +131,7 @@ async static IAsyncEnumerable CallbackAsync(
Temperature = 6.0f,
Seed = 42,
StopSequences = ["hello", "world"],
+ Reasoning = new ReasoningOptions { Effort = ReasoningEffort.High },
AdditionalProperties = new()
{
["service_tier"] = "value1",
@@ -183,6 +184,7 @@ async static IAsyncEnumerable CallbackAsync(
Assert.Equal(enableSensitiveData ? "value1" : null, activity.GetTagItem("service_tier"));
Assert.Equal(enableSensitiveData ? "value2" : null, activity.GetTagItem("SomethingElse"));
Assert.Equal(42L, activity.GetTagItem("gen_ai.request.seed"));
+ Assert.Equal("high", activity.GetTagItem("gen_ai.request.reasoning.level"));
Assert.Equal("id123", activity.GetTagItem("gen_ai.response.id"));
Assert.Equal("""["stop"]""", activity.GetTagItem("gen_ai.response.finish_reasons"));
@@ -445,6 +447,7 @@ async static IAsyncEnumerable CallbackAsync(
new TextReasoningContent("User reasoning"),
new DataContent(Convert.FromBase64String("ZGF0YSBjb250ZW50"), "audio/mp3"),
new UriContent(new Uri("https://example.com/video.mp4"), "video/mp4"),
+ new DataContent(Convert.FromBase64String("cGRmY29udGVudA=="), "application/pdf"),
new HostedFileContent("file-xyz789"),
]),
new(ChatRole.Assistant, [new FunctionCallContent("call-456", "SearchFiles")]),
@@ -492,6 +495,12 @@ async static IAsyncEnumerable CallbackAsync(
"mime_type": "video/mp4",
"modality": "video"
},
+ {
+ "type": "blob",
+ "content": "cGRmY29udGVudA==",
+ "mime_type": "application/pdf",
+ "modality": "document"
+ },
{
"type": "file",
"file_id": "file-xyz789"