diff --git a/.dotnet/api/OpenAI.netstandard2.0.cs b/.dotnet/api/OpenAI.netstandard2.0.cs
index 24d7c45a5..2504700eb 100644
--- a/.dotnet/api/OpenAI.netstandard2.0.cs
+++ b/.dotnet/api/OpenAI.netstandard2.0.cs
@@ -1088,6 +1088,12 @@ public enum GeneratedSpeechVoice {
         Nova = 4,
         Shimmer = 5
     }
+    public static class OpenAIAudioModelFactory {
+        public static AudioTranscription AudioTranscription(string language = null, TimeSpan? duration = null, string text = null, IEnumerable<TranscribedWord> words = null, IEnumerable<TranscribedSegment> segments = null);
+        public static AudioTranslation AudioTranslation(string language = null, TimeSpan? duration = null, string text = null, IEnumerable<TranscribedSegment> segments = null);
+        public static TranscribedSegment TranscribedSegment(int id = 0, long seekOffset = 0, TimeSpan start = default, TimeSpan end = default, string text = null, IEnumerable<long> tokenIds = null, float temperature = 0, double averageLogProbability = 0, float compressionRatio = 0, double noSpeechProbability = 0);
+        public static TranscribedWord TranscribedWord(string word = null, TimeSpan start = default, TimeSpan end = default);
+    }
     public class SpeechGenerationOptions : IJsonModel<SpeechGenerationOptions>, IPersistableModel<SpeechGenerationOptions> {
         public GeneratedSpeechFormat? ResponseFormat { get; set; }
         public float? Speed { get; set; }
@@ -1593,6 +1599,11 @@ public class EmbeddingTokenUsage : IJsonModel<EmbeddingTokenUsage>, IPersistable
         string IPersistableModel<EmbeddingTokenUsage>.GetFormatFromOptions(ModelReaderWriterOptions options);
         BinaryData IPersistableModel<EmbeddingTokenUsage>.Write(ModelReaderWriterOptions options);
     }
+    public static class OpenAIEmbeddingsModelFactory {
+        public static Embedding Embedding(int index = 0, IEnumerable<float> vector = null);
+        public static EmbeddingCollection EmbeddingCollection(IEnumerable<Embedding> items = null, string model = null, EmbeddingTokenUsage usage = null);
+        public static EmbeddingTokenUsage EmbeddingTokenUsage(int inputTokens = 0, int totalTokens = 0);
+    }
 }
 namespace OpenAI.Files {
     public class FileClient {
@@ -1868,6 +1879,10 @@ public class ImageVariationOptions : IJsonModel<ImageVariationOptions>, IPersist
         string IPersistableModel<ImageVariationOptions>.GetFormatFromOptions(ModelReaderWriterOptions options);
         BinaryData IPersistableModel<ImageVariationOptions>.Write(ModelReaderWriterOptions options);
     }
+    public static class OpenAIImagesModelFactory {
+        public static GeneratedImage GeneratedImage(BinaryData imageBytes = null, Uri imageUri = null, string revisedPrompt = null);
+        public static GeneratedImageCollection GeneratedImageCollection(DateTimeOffset createdAt = default, IEnumerable<GeneratedImage> items = null);
+    }
 }
 namespace OpenAI.Models {
     public class ModelClient {
diff --git a/.dotnet/tests/Assistants/AssistantTests.cs b/.dotnet/tests/Assistants/AssistantTests.cs
index 662707963..b38e4e5cf 100644
--- a/.dotnet/tests/Assistants/AssistantTests.cs
+++ b/.dotnet/tests/Assistants/AssistantTests.cs
@@ -24,7 +24,7 @@ public partial class AssistantTests
     protected void Cleanup()
     {
         // Skip cleanup if there is no API key (e.g., if we are not running live tests).
-        if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("OPEN_API_KEY")))
+        if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("OPENAI_API_KEY")))
         {
             return;
         }
diff --git a/.dotnet/tests/Telemetry/TestActivityListener.cs b/.dotnet/tests/Telemetry/TestActivityListener.cs
index a236691b7..f7a5208a3 100644
--- a/.dotnet/tests/Telemetry/TestActivityListener.cs
+++ b/.dotnet/tests/Telemetry/TestActivityListener.cs
@@ -35,7 +35,7 @@ public void Dispose()
         _listener.Dispose();
     }
 
-    public static void ValidateChatActivity(Activity activity, ChatCompletion response, string requestModel = "gpt-3.5-turbo", string host = "api.openai.com", int port = 443)
+    public static void ValidateChatActivity(Activity activity, ChatCompletion response, string requestModel = "gpt-4o-mini", string host = "api.openai.com", int port = 443)
     {
         Assert.NotNull(activity);
         Assert.AreEqual($"chat {requestModel}", activity.DisplayName);
@@ -64,7 +64,7 @@ public static void ValidateChatActivity(Activity activity, ChatCompletion respon
         }
     }
 
-    public static void ValidateChatActivity(Activity activity, Exception ex, string requestModel = "gpt-3.5-turbo", string host = "api.openai.com", int port = 443)
+    public static void ValidateChatActivity(Activity activity, Exception ex, string requestModel = "gpt-4o-mini", string host = "api.openai.com", int port = 443)
     {
         ValidateChatActivity(activity, (ChatCompletion)null, requestModel, host, port);
         Assert.AreEqual(ex.GetType().FullName, activity.GetTagItem("error.type"));
diff --git a/.dotnet/tests/Telemetry/TestMeterListener.cs b/.dotnet/tests/Telemetry/TestMeterListener.cs
index 187f94015..b918beb7f 100644
--- a/.dotnet/tests/Telemetry/TestMeterListener.cs
+++ b/.dotnet/tests/Telemetry/TestMeterListener.cs
@@ -60,7 +60,7 @@ public void Dispose()
         _listener.Dispose();
     }
 
-    public static void ValidateChatMetricTags(TestMeasurement measurement, ChatCompletion response, string requestModel = "gpt-3.5-turbo", string host = "api.openai.com", int port = 443)
+    public static void ValidateChatMetricTags(TestMeasurement measurement, ChatCompletion response, string requestModel = "gpt-4o-mini", string host = "api.openai.com", int port = 443)
     {
         Assert.AreEqual("openai", measurement.tags["gen_ai.system"]);
         Assert.AreEqual("chat", measurement.tags["gen_ai.operation.name"]);
@@ -75,7 +75,7 @@ public static void ValidateChatMetricTags(TestMeasurement measurement, ChatCompl
         }
     }
 
-    public static void ValidateChatMetricTags(TestMeasurement measurement, Exception ex, string requestModel = "gpt-3.5-turbo", string host = "api.openai.com", int port = 443)
+    public static void ValidateChatMetricTags(TestMeasurement measurement, Exception ex, string requestModel = "gpt-4o-mini", string host = "api.openai.com", int port = 443)
     {
         ValidateChatMetricTags(measurement, (ChatCompletion)null, requestModel, host, port);
         Assert.True(measurement.tags.ContainsKey("error.type"));
diff --git a/.scripts/Export-API.ps1 b/.scripts/Export-API.ps1
index b9129d003..03b1e5d27 100644
--- a/.scripts/Export-API.ps1
+++ b/.scripts/Export-API.ps1
@@ -19,29 +19,44 @@ Write-Output ""
 $net80ref = Get-ChildItem -Recurse `
     -Path "$($env:ProgramFiles)\dotnet\packs\Microsoft.NETCore.App.Ref" `
     -Include "net8.0" | Select-Object -Last 1
+$systemClientModelRef = Get-ChildItem -Recurse `
+    -Path "$($env:UserProfile)\.nuget\packages\system.clientmodel\1.1.0-beta.5" `
+    -Include "netstandard2.0" | Select-Object -Last 1
 $systemMemoryDataRef = Get-ChildItem -Recurse `
-    -Path "$($env:UserProfile)\.nuget\packages\system.memory.data" `
+    -Path "$($env:UserProfile)\.nuget\packages\system.memory.data\1.0.2" `
     -Include "netstandard2.0" | Select-Object -Last 1
-$systemClientmodelRef = Get-ChildItem -Recurse `
-    -Path "$($env:UserProfile)\.nuget\packages\system.clientmodel" `
+$systemDiagnosticsDiagnosticSourceRef = Get-ChildItem -Recurse `
+    -Path "$($env:UserProfile)\.nuget\packages\system.diagnostics.diagnosticsource\8.0.1" `
     -Include "netstandard2.0" | Select-Object -Last 1
-$microsoftBclAsyncinterfacesRef = Get-ChildItem -Recurse `
+$microsoftBclAsyncInterfacesRef = Get-ChildItem -Recurse `
     -Path "$($env:UserProfile)\.nuget\packages\microsoft.bcl.asyncinterfaces\1.1.0" `
     -Include "netstandard2.0" | Select-Object -Last 1
 
 Write-Output "Assembly reference paths:"
-Write-Output "* NETCore:                       $($net80ref)"
-Write-Output "* System.Memory.Data:            $($systemMemoryDataRef)"
-Write-Output "* System.ClientModel:            $($systemClientmodelRef)"
-Write-Output "* Microsoft.Bcl.AsyncInterfaces: $($microsoftBclAsyncinterfacesRef)"
+Write-Output "* NETCore:"
+Write-Output "  $($net80ref)"
+Write-Output ""
+Write-Output "* System.ClientModel:"
+Write-Output "  $($systemClientModelRef)"
+Write-Output ""
+Write-Output "* System.Memory.Data:"
+Write-Output "  $($systemMemoryDataRef)"
+Write-Output ""
+Write-Output "* System.Diagnostics.DiagnosticSource:"
+Write-Output "  $($systemDiagnosticsDiagnosticSourceRef)"
+Write-Output ""
+Write-Output "* Microsoft.Bcl.AsyncInterfaces:"
+Write-Output "  $($microsoftBclAsyncInterfacesRef)"
+Write-Output ""
 Write-Output "NOTE: if any of the above are empty, tool output may be inaccurate."
 Write-Output ""
 
 genapi --assembly $assemblyPath --output-path $outputPath `
     --assembly-reference $net80ref `
+    --assembly-reference $systemClientModelRef `
     --assembly-reference $systemMemoryDataRef `
-    --assembly-reference $systemClientmodelRef `
-    --assembly-reference $microsoftBclAsyncinterfacesRef
+    --assembly-reference $systemDiagnosticsDiagnosticSourceRef `
+    --assembly-reference $microsoftBclAsyncInterfacesRef
 
 Write-Output "Cleaning up OpenAI.netstandard2.0.cs..."
 Write-Output ""