diff --git a/src/GeminiDotnet.Extensions.AI/GeminiToMEAIMapper.cs b/src/GeminiDotnet.Extensions.AI/GeminiToMEAIMapper.cs
index 66ffec2..72ea2b4 100644
--- a/src/GeminiDotnet.Extensions.AI/GeminiToMEAIMapper.cs
+++ b/src/GeminiDotnet.Extensions.AI/GeminiToMEAIMapper.cs
@@ -2,7 +2,6 @@
 using GeminiDotnet.V1Beta.Models;
 using Microsoft.Extensions.AI;
 using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
 using System.Text.Json;
 
 #pragma warning disable MEAI001 // Experimental API (CodeInterpreter*, WebSearchTool*Content)
diff --git a/src/GeminiDotnet/V1/API_REVISION b/src/GeminiDotnet/V1/API_REVISION
index a79e9de..d74753e 100644
--- a/src/GeminiDotnet/V1/API_REVISION
+++ b/src/GeminiDotnet/V1/API_REVISION
@@ -1 +1 @@
-20260310
\ No newline at end of file
+20260426
\ No newline at end of file
diff --git a/src/GeminiDotnet/V1/GenerateContentRequest.cs b/src/GeminiDotnet/V1/GenerateContentRequest.cs
index c97255e..79614e7 100644
--- a/src/GeminiDotnet/V1/GenerateContentRequest.cs
+++ b/src/GeminiDotnet/V1/GenerateContentRequest.cs
@@ -53,6 +53,13 @@ public sealed record GenerateContentRequest
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public IReadOnlyList<SafetySetting>? SafetySettings { get; init; }
 
+    /// <summary>
+    /// Optional. The service tier of the request.
+    /// </summary>
+    [JsonPropertyName("serviceTier")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public ServiceTier? ServiceTier { get; init; }
+
     /// <summary>
     /// Optional. Configures the logging behavior for a given request. If set, it takes
     /// precedence over the project-level logging config.
diff --git a/src/GeminiDotnet/V1/Models/BatchEmbedContentsResponse.cs b/src/GeminiDotnet/V1/Models/BatchEmbedContentsResponse.cs
index 48bf840..2a412ce 100644
--- a/src/GeminiDotnet/V1/Models/BatchEmbedContentsResponse.cs
+++ b/src/GeminiDotnet/V1/Models/BatchEmbedContentsResponse.cs
@@ -14,5 +14,12 @@ public sealed record BatchEmbedContentsResponse
     [JsonPropertyName("embeddings")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public IReadOnlyList<ContentEmbedding>? Embeddings { get; init; }
+
+    /// <summary>
+    /// Output only. The usage metadata for the request.
+    /// </summary>
+    [JsonPropertyName("usageMetadata")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public EmbeddingUsageMetadata? UsageMetadata { get; init; }
 }
 
diff --git a/src/GeminiDotnet/V1/Models/Blob.cs b/src/GeminiDotnet/V1/Models/Blob.cs
index 9982bd1..92d5bd5 100644
--- a/src/GeminiDotnet/V1/Models/Blob.cs
+++ b/src/GeminiDotnet/V1/Models/Blob.cs
@@ -17,12 +17,20 @@ public sealed record Blob
 
     /// <summary>
     /// The IANA standard MIME type of the source data.
-    /// Examples:
-    /// - image/png
-    /// - image/jpeg
-    /// If an unsupported MIME type is provided, an error will be returned. For a
-    /// complete list of supported types, see [Supported file
-    /// formats](https://ai.google.dev/gemini-api/docs/prompting_with_media#supported_file_formats).
+    /// Examples of supported types:
+    /// - Images: image/png, image/jpeg, image/jpg, image/webp, image/heic,
+    /// image/heif, image/gif, image/avif
+    /// - Audio: audio/*, video/audio/s16le, video/audio/wav
+    /// - Video: video/*
+    /// - Text: text/plain, text/html, text/css, text/javascript,
+    /// text/x-typescript, text/csv, text/markdown, text/x-python, text/xml,
+    /// text/rtf, video/text/timestamp
+    /// - Applications: application/x-javascript, application/x-typescript,
+    /// application/x-python-code, application/json, application/x-ipynb+json,
+    /// application/rtf, application/pdf For additional context,
+    /// see [Supported file
+    /// formats](https://ai.google.dev/gemini-api/docs/file-input-methods#supported-content-types).
+    /// //
     /// </summary>
     [JsonPropertyName("mimeType")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
diff --git a/src/GeminiDotnet/V1/Models/EmbedContentConfiguration.cs b/src/GeminiDotnet/V1/Models/EmbedContentConfiguration.cs
new file mode 100644
index 0000000..93cf968
--- /dev/null
+++ b/src/GeminiDotnet/V1/Models/EmbedContentConfiguration.cs
@@ -0,0 +1,54 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1.Models;
+
+/// <summary>
+/// Configurations for the EmbedContent request.
+/// </summary>
+public sealed record EmbedContentConfiguration
+{
+    /// <summary>
+    /// Optional. Whether to extract audio from video content.
+    /// </summary>
+    [JsonPropertyName("audioTrackExtraction")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? AudioTrackExtraction { get; init; }
+
+    /// <summary>
+    /// Optional. Whether to silently truncate the input content if it's longer
+    /// than the maximum sequence length.
+    /// </summary>
+    [JsonPropertyName("autoTruncate")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? AutoTruncate { get; init; }
+
+    /// <summary>
+    /// Optional. Whether to enable OCR for document content.
+    /// </summary>
+    [JsonPropertyName("documentOcr")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? DocumentOcr { get; init; }
+
+    /// <summary>
+    /// Optional. Reduced dimension for the output embedding. If set, excessive
+    /// values in the output embedding are truncated from the end.
+    /// </summary>
+    [JsonPropertyName("outputDimensionality")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public int? OutputDimensionality { get; init; }
+
+    /// <summary>
+    /// Optional. The task type of the embedding.
+    /// </summary>
+    [JsonPropertyName("taskType")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public TaskType? TaskType { get; init; }
+
+    /// <summary>
+    /// Optional. The title for the text.
+    /// </summary>
+    [JsonPropertyName("title")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? Title { get; init; }
+}
+
diff --git a/src/GeminiDotnet/V1/Models/EmbedContentRequest.cs b/src/GeminiDotnet/V1/Models/EmbedContentRequest.cs
index ec10946..49c104d 100644
--- a/src/GeminiDotnet/V1/Models/EmbedContentRequest.cs
+++ b/src/GeminiDotnet/V1/Models/EmbedContentRequest.cs
@@ -13,6 +13,13 @@ public sealed record EmbedContentRequest
     [JsonPropertyName("content")]
     public required Content Content { get; init; }
 
+    /// <summary>
+    /// Optional. Configuration for the EmbedContent request.
+    /// </summary>
+    [JsonPropertyName("embedContentConfig")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public EmbedContentConfiguration? EmbedContentConfiguration { get; init; }
+
     /// <summary>
     /// Required. The model's resource name. This serves as an ID for the Model to use.
     /// This name should match a model name returned by the <c>ListModels</c> method.
@@ -22,7 +29,8 @@ public sealed record EmbedContentRequest
     public required string Model { get; init; }
 
     /// <summary>
-    /// Optional. Optional reduced dimension for the output embedding. If set, excessive
+    /// Optional. Deprecated: Please use EmbedContentConfig.output_dimensionality instead.
+    /// Optional reduced dimension for the output embedding. If set, excessive
     /// values in the output embedding are truncated from the end. Supported by
     /// newer models since 2024 only. You cannot set this value if using the
     /// earlier model (<c>models/embedding-001</c>).
@@ -32,7 +40,8 @@ public sealed record EmbedContentRequest
     public int? OutputDimensionality { get; init; }
 
     /// <summary>
-    /// Optional. Optional task type for which the embeddings will be used. Not supported on
+    /// Optional. Deprecated: Please use EmbedContentConfig.task_type instead.
+    /// Optional task type for which the embeddings will be used. Not supported on
     /// earlier models (<c>models/embedding-001</c>).
     /// </summary>
     [JsonPropertyName("taskType")]
@@ -40,7 +49,8 @@ public sealed record EmbedContentRequest
     public TaskType? TaskType { get; init; }
 
     /// <summary>
-    /// Optional. An optional title for the text. Only applicable when TaskType is
+    /// Optional. Deprecated: Please use EmbedContentConfig.title instead.
+    /// An optional title for the text. Only applicable when TaskType is
     /// <c>RETRIEVAL_DOCUMENT</c>.
     /// Note: Specifying a <see cref="Title"/> for <c>RETRIEVAL_DOCUMENT</c> provides better quality
     /// embeddings for retrieval.
diff --git a/src/GeminiDotnet/V1/Models/EmbedContentResponse.cs b/src/GeminiDotnet/V1/Models/EmbedContentResponse.cs
index 04e3a82..1e66947 100644
--- a/src/GeminiDotnet/V1/Models/EmbedContentResponse.cs
+++ b/src/GeminiDotnet/V1/Models/EmbedContentResponse.cs
@@ -13,5 +13,12 @@ public sealed record EmbedContentResponse
     [JsonPropertyName("embedding")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public ContentEmbedding? Embedding { get; init; }
+
+    /// <summary>
+    /// Output only. The usage metadata for the request.
+    /// </summary>
+    [JsonPropertyName("usageMetadata")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public EmbeddingUsageMetadata? UsageMetadata { get; init; }
 }
 
diff --git a/src/GeminiDotnet/V1/Models/EmbeddingUsageMetadata.cs b/src/GeminiDotnet/V1/Models/EmbeddingUsageMetadata.cs
new file mode 100644
index 0000000..35067fc
--- /dev/null
+++ b/src/GeminiDotnet/V1/Models/EmbeddingUsageMetadata.cs
@@ -0,0 +1,24 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1.Models;
+
+/// <summary>
+/// Metadata on the usage of the embedding request.
+/// </summary>
+public sealed record EmbeddingUsageMetadata
+{
+    /// <summary>
+    /// Output only. Number of tokens in the prompt.
+    /// </summary>
+    [JsonPropertyName("promptTokenCount")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public int? PromptTokenCount { get; init; }
+
+    /// <summary>
+    /// Output only. List of modalities that were processed in the request input.
+    /// </summary>
+    [JsonPropertyName("promptTokenDetails")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public IReadOnlyList<ModalityTokenCount>? PromptTokenDetails { get; init; }
+}
+
diff --git a/src/GeminiDotnet/V1/ServiceTier.cs b/src/GeminiDotnet/V1/ServiceTier.cs
new file mode 100644
index 0000000..2e8a350
--- /dev/null
+++ b/src/GeminiDotnet/V1/ServiceTier.cs
@@ -0,0 +1,32 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1;
+
+[JsonConverter(typeof(JsonStringEnumConverter<ServiceTier>))]
+public enum ServiceTier
+{
+    /// <summary>
+    /// Default service tier, which is standard.
+    /// </summary>
+    [JsonStringEnumMemberName("unspecified")]
+    Unspecified,
+
+    /// <summary>
+    /// Standard service tier.
+    /// </summary>
+    [JsonStringEnumMemberName("standard")]
+    Standard,
+
+    /// <summary>
+    /// Flex service tier.
+    /// </summary>
+    [JsonStringEnumMemberName("flex")]
+    Flex,
+
+    /// <summary>
+    /// Priority service tier.
+    /// </summary>
+    [JsonStringEnumMemberName("priority")]
+    Priority,
+}
+
diff --git a/src/GeminiDotnet/V1Beta/API_REVISION b/src/GeminiDotnet/V1Beta/API_REVISION
index a79e9de..d74753e 100644
--- a/src/GeminiDotnet/V1Beta/API_REVISION
+++ b/src/GeminiDotnet/V1Beta/API_REVISION
@@ -1 +1 @@
-20260310
\ No newline at end of file
+20260426
\ No newline at end of file
diff --git a/src/GeminiDotnet/V1Beta/Blob.cs b/src/GeminiDotnet/V1Beta/Blob.cs
index 9587143..d39f136 100644
--- a/src/GeminiDotnet/V1Beta/Blob.cs
+++ b/src/GeminiDotnet/V1Beta/Blob.cs
@@ -17,12 +17,20 @@ public sealed record Blob
 
     /// <summary>
     /// The IANA standard MIME type of the source data.
-    /// Examples:
-    /// - image/png
-    /// - image/jpeg
-    /// If an unsupported MIME type is provided, an error will be returned. For a
-    /// complete list of supported types, see [Supported file
-    /// formats](https://ai.google.dev/gemini-api/docs/prompting_with_media#supported_file_formats).
+    /// Examples of supported types:
+    /// - Images: image/png, image/jpeg, image/jpg, image/webp, image/heic,
+    /// image/heif, image/gif, image/avif
+    /// - Audio: audio/*, video/audio/s16le, video/audio/wav
+    /// - Video: video/*
+    /// - Text: text/plain, text/html, text/css, text/javascript,
+    /// text/x-typescript, text/csv, text/markdown, text/x-python, text/xml,
+    /// text/rtf, video/text/timestamp
+    /// - Applications: application/x-javascript, application/x-typescript,
+    /// application/x-python-code, application/json, application/x-ipynb+json,
+    /// application/rtf, application/pdf For additional context,
+    /// see [Supported file
+    /// formats](https://ai.google.dev/gemini-api/docs/file-input-methods#supported-content-types).
+    /// //
     /// </summary>
     [JsonPropertyName("mimeType")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
diff --git a/src/GeminiDotnet/V1Beta/CachedContents/McpServer.cs b/src/GeminiDotnet/V1Beta/CachedContents/McpServer.cs
index e087e45..5e38b5f 100644
--- a/src/GeminiDotnet/V1Beta/CachedContents/McpServer.cs
+++ b/src/GeminiDotnet/V1Beta/CachedContents/McpServer.cs
@@ -5,7 +5,7 @@ namespace GeminiDotnet.V1Beta.CachedContents;
 /// <summary>
 /// A MCPServer is a server that can be called by the model to perform actions.
 /// It is a server that implements the MCP protocol.
-/// Next ID: 5
+/// Next ID: 6
 /// </summary>
 public sealed record McpServer
 {
diff --git a/src/GeminiDotnet/V1Beta/CachedContents/SearchTypes.cs b/src/GeminiDotnet/V1Beta/CachedContents/SearchTypes.cs
index 1628029..225f604 100644
--- a/src/GeminiDotnet/V1Beta/CachedContents/SearchTypes.cs
+++ b/src/GeminiDotnet/V1Beta/CachedContents/SearchTypes.cs
@@ -8,14 +8,14 @@ namespace GeminiDotnet.V1Beta.CachedContents;
 public sealed record SearchTypes
 {
     /// <summary>
-    /// Optional. Setting this field enables image search. Image bytes are returned.
+    /// Optional. Enables image search. Image bytes are returned.
     /// </summary>
     [JsonPropertyName("imageSearch")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public ImageSearch? ImageSearch { get; init; }
 
     /// <summary>
-    /// Optional. Setting this field enables web search. Only text results are returned.
+    /// Optional. Enables web search. Only text results are returned.
     /// </summary>
     [JsonPropertyName("webSearch")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
diff --git a/src/GeminiDotnet/V1Beta/CachedContents/Tool.cs b/src/GeminiDotnet/V1Beta/CachedContents/Tool.cs
index 235aadb..37ac234 100644
--- a/src/GeminiDotnet/V1Beta/CachedContents/Tool.cs
+++ b/src/GeminiDotnet/V1Beta/CachedContents/Tool.cs
@@ -7,7 +7,7 @@ namespace GeminiDotnet.V1Beta.CachedContents;
 /// A <see cref="V1Beta.CachedContents.Tool"/> is a piece of code that enables the system to interact with
 /// external systems to perform an action, or set of actions, outside of
 /// knowledge and scope of the model.
-/// Next ID: 15
+/// Next ID: 16
 /// </summary>
 public sealed record Tool
 {
diff --git a/src/GeminiDotnet/V1Beta/CachedContents/ToolConfiguration.cs b/src/GeminiDotnet/V1Beta/CachedContents/ToolConfiguration.cs
index 69b788b..b43e9d6 100644
--- a/src/GeminiDotnet/V1Beta/CachedContents/ToolConfiguration.cs
+++ b/src/GeminiDotnet/V1Beta/CachedContents/ToolConfiguration.cs
@@ -15,6 +15,15 @@ public sealed record ToolConfiguration
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public FunctionCallingConfiguration? FunctionCallingConfiguration { get; init; }
 
+    /// <summary>
+    /// Optional. If true, the API response will include the server-side tool calls and
+    /// responses within the <see cref="V1Beta.Content"/> message. This allows clients to
+    /// observe the server's tool interactions.
+    /// </summary>
+    [JsonPropertyName("includeServerSideToolInvocations")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? IncludeServerSideToolInvocations { get; init; }
+
     /// <summary>
     /// Optional. Retrieval config.
     /// </summary>
diff --git a/src/GeminiDotnet/V1Beta/CodeExecutionResult.cs b/src/GeminiDotnet/V1Beta/CodeExecutionResult.cs
index 39f1849..274f9fa 100644
--- a/src/GeminiDotnet/V1Beta/CodeExecutionResult.cs
+++ b/src/GeminiDotnet/V1Beta/CodeExecutionResult.cs
@@ -8,6 +8,14 @@ namespace GeminiDotnet.V1Beta;
 /// </summary>
 public sealed record CodeExecutionResult
 {
+    /// <summary>
+    /// Optional. The identifier of the <see cref="V1Beta.ExecutableCode"/> part this result is for.
+    /// Only populated if the corresponding <see cref="V1Beta.ExecutableCode"/> has an id.
+    /// </summary>
+    [JsonPropertyName("id")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? Id { get; init; }
+
     /// <summary>
     /// Required. Outcome of the code execution.
     /// </summary>
diff --git a/src/GeminiDotnet/V1Beta/ExecutableCode.cs b/src/GeminiDotnet/V1Beta/ExecutableCode.cs
index 9459e83..25008e8 100644
--- a/src/GeminiDotnet/V1Beta/ExecutableCode.cs
+++ b/src/GeminiDotnet/V1Beta/ExecutableCode.cs
@@ -17,6 +17,14 @@ public sealed record ExecutableCode
     [JsonPropertyName("code")]
     public required string Code { get; init; }
 
+    /// <summary>
+    /// Optional. Unique identifier of the <see cref="V1Beta.ExecutableCode"/> part.
+    /// The server returns the <see cref="V1Beta.CodeExecutionResult"/> with the matching <see cref="Id"/>.
+    /// </summary>
+    [JsonPropertyName("id")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? Id { get; init; }
+
     /// <summary>
     /// Required. Programming language of the <see cref="Code"/>.
     /// </summary>
diff --git a/src/GeminiDotnet/V1Beta/FileSearchStores/ImportFileRequest.cs b/src/GeminiDotnet/V1Beta/FileSearchStores/ImportFileRequest.cs
index 2798f29..f35f4ee 100644
--- a/src/GeminiDotnet/V1Beta/FileSearchStores/ImportFileRequest.cs
+++ b/src/GeminiDotnet/V1Beta/FileSearchStores/ImportFileRequest.cs
@@ -4,7 +4,6 @@ namespace GeminiDotnet.V1Beta.FileSearchStores;
 
 /// <summary>
 /// Request for <c>ImportFile</c> to import a File API file with a <see cref="V1Beta.FileSearchStores.FileSearchStore"/>.
-/// LINT.IfChange(ImportFileRequest)
 /// </summary>
 public sealed record ImportFileRequest
 {
diff --git a/src/GeminiDotnet/V1Beta/GenerateContentRequest.cs b/src/GeminiDotnet/V1Beta/GenerateContentRequest.cs
index c1231a5..3d39c56 100644
--- a/src/GeminiDotnet/V1Beta/GenerateContentRequest.cs
+++ b/src/GeminiDotnet/V1Beta/GenerateContentRequest.cs
@@ -63,6 +63,13 @@ public sealed record GenerateContentRequest
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public IReadOnlyList<SafetySetting>? SafetySettings { get; init; }
 
+    /// <summary>
+    /// Optional. The service tier of the request.
+    /// </summary>
+    [JsonPropertyName("serviceTier")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public ServiceTier? ServiceTier { get; init; }
+
     /// <summary>
     /// Optional. Configures the logging behavior for a given request. If set, it takes
     /// precedence over the project-level logging config.
diff --git a/src/GeminiDotnet/V1Beta/ImageConfiguration.cs b/src/GeminiDotnet/V1Beta/ImageConfiguration.cs
index 14cfac6..bbfc58a 100644
--- a/src/GeminiDotnet/V1Beta/ImageConfiguration.cs
+++ b/src/GeminiDotnet/V1Beta/ImageConfiguration.cs
@@ -19,7 +19,7 @@ public sealed record ImageConfiguration
     public string? AspectRatio { get; init; }
 
     /// <summary>
-    /// Optional. Specifies the size of generated images. Supported values are <c>512PX</c>, <c>1K</c>,
+    /// Optional. Specifies the size of generated images. Supported values are <c>512</c>, <c>1K</c>,
     /// <c>2K</c>, <c>4K</c>. If not specified, the model will use default value <c>1K</c>.
     /// </summary>
     [JsonPropertyName("imageSize")]
diff --git a/src/GeminiDotnet/V1Beta/Models/BatchEmbedContentsResponse.cs b/src/GeminiDotnet/V1Beta/Models/BatchEmbedContentsResponse.cs
index 829aa74..084e835 100644
--- a/src/GeminiDotnet/V1Beta/Models/BatchEmbedContentsResponse.cs
+++ b/src/GeminiDotnet/V1Beta/Models/BatchEmbedContentsResponse.cs
@@ -14,5 +14,12 @@ public sealed record BatchEmbedContentsResponse
     [JsonPropertyName("embeddings")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public IReadOnlyList<ContentEmbedding>? Embeddings { get; init; }
+
+    /// <summary>
+    /// Output only. The usage metadata for the request.
+    /// </summary>
+    [JsonPropertyName("usageMetadata")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public EmbeddingUsageMetadata? UsageMetadata { get; init; }
 }
 
diff --git a/src/GeminiDotnet/V1Beta/Models/EmbedContentConfiguration.cs b/src/GeminiDotnet/V1Beta/Models/EmbedContentConfiguration.cs
new file mode 100644
index 0000000..c48df6e
--- /dev/null
+++ b/src/GeminiDotnet/V1Beta/Models/EmbedContentConfiguration.cs
@@ -0,0 +1,54 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1Beta.Models;
+
+/// <summary>
+/// Configurations for the EmbedContent request.
+/// </summary>
+public sealed record EmbedContentConfiguration
+{
+    /// <summary>
+    /// Optional. Whether to extract audio from video content.
+    /// </summary>
+    [JsonPropertyName("audioTrackExtraction")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? AudioTrackExtraction { get; init; }
+
+    /// <summary>
+    /// Optional. Whether to silently truncate the input content if it's longer
+    /// than the maximum sequence length.
+    /// </summary>
+    [JsonPropertyName("autoTruncate")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? AutoTruncate { get; init; }
+
+    /// <summary>
+    /// Optional. Whether to enable OCR for document content.
+    /// </summary>
+    [JsonPropertyName("documentOcr")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public bool? DocumentOcr { get; init; }
+
+    /// <summary>
+    /// Optional. Reduced dimension for the output embedding. If set, excessive
+    /// values in the output embedding are truncated from the end.
+    /// </summary>
+    [JsonPropertyName("outputDimensionality")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public int? OutputDimensionality { get; init; }
+
+    /// <summary>
+    /// Optional. The task type of the embedding.
+    /// </summary>
+    [JsonPropertyName("taskType")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public TaskType? TaskType { get; init; }
+
+    /// <summary>
+    /// Optional. The title for the text.
+    /// </summary>
+    [JsonPropertyName("title")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? Title { get; init; }
+}
+
diff --git a/src/GeminiDotnet/V1Beta/Models/EmbedContentRequest.cs b/src/GeminiDotnet/V1Beta/Models/EmbedContentRequest.cs
index 76c88ef..484f53c 100644
--- a/src/GeminiDotnet/V1Beta/Models/EmbedContentRequest.cs
+++ b/src/GeminiDotnet/V1Beta/Models/EmbedContentRequest.cs
@@ -13,6 +13,13 @@ public sealed record EmbedContentRequest
     [JsonPropertyName("content")]
     public required Content Content { get; init; }
 
+    /// <summary>
+    /// Optional. Configuration for the EmbedContent request.
+    /// </summary>
+    [JsonPropertyName("embedContentConfig")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public EmbedContentConfiguration? EmbedContentConfiguration { get; init; }
+
     /// <summary>
     /// Required. The model's resource name. This serves as an ID for the Model to use.
     /// This name should match a model name returned by the <c>ListModels</c> method.
@@ -22,7 +29,8 @@ public sealed record EmbedContentRequest
     public required string Model { get; init; }
 
     /// <summary>
-    /// Optional. Optional reduced dimension for the output embedding. If set, excessive
+    /// Optional. Deprecated: Please use EmbedContentConfig.output_dimensionality instead.
+    /// Optional reduced dimension for the output embedding. If set, excessive
     /// values in the output embedding are truncated from the end. Supported by
     /// newer models since 2024 only. You cannot set this value if using the
     /// earlier model (<c>models/embedding-001</c>).
@@ -32,7 +40,8 @@ public sealed record EmbedContentRequest
     public int? OutputDimensionality { get; init; }
 
     /// <summary>
-    /// Optional. Optional task type for which the embeddings will be used. Not supported on
+    /// Optional. Deprecated: Please use EmbedContentConfig.task_type instead.
+    /// Optional task type for which the embeddings will be used. Not supported on
     /// earlier models (<c>models/embedding-001</c>).
     /// </summary>
     [JsonPropertyName("taskType")]
@@ -40,7 +49,8 @@ public sealed record EmbedContentRequest
     public TaskType? TaskType { get; init; }
 
     /// <summary>
-    /// Optional. An optional title for the text. Only applicable when TaskType is
+    /// Optional. Deprecated: Please use EmbedContentConfig.title instead.
+    /// An optional title for the text. Only applicable when TaskType is
     /// <c>RETRIEVAL_DOCUMENT</c>.
     /// Note: Specifying a <see cref="Title"/> for <c>RETRIEVAL_DOCUMENT</c> provides better quality
     /// embeddings for retrieval.
diff --git a/src/GeminiDotnet/V1Beta/Models/EmbedContentResponse.cs b/src/GeminiDotnet/V1Beta/Models/EmbedContentResponse.cs
index 44ed157..803e095 100644
--- a/src/GeminiDotnet/V1Beta/Models/EmbedContentResponse.cs
+++ b/src/GeminiDotnet/V1Beta/Models/EmbedContentResponse.cs
@@ -13,5 +13,12 @@ public sealed record EmbedContentResponse
     [JsonPropertyName("embedding")]
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public ContentEmbedding? Embedding { get; init; }
+
+    /// <summary>
+    /// Output only. The usage metadata for the request.
+    /// </summary>
+    [JsonPropertyName("usageMetadata")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public EmbeddingUsageMetadata? UsageMetadata { get; init; }
 }
 
diff --git a/src/GeminiDotnet/V1Beta/Models/EmbeddingUsageMetadata.cs b/src/GeminiDotnet/V1Beta/Models/EmbeddingUsageMetadata.cs
new file mode 100644
index 0000000..bc8630c
--- /dev/null
+++ b/src/GeminiDotnet/V1Beta/Models/EmbeddingUsageMetadata.cs
@@ -0,0 +1,24 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1Beta.Models;
+
+/// <summary>
+/// Metadata on the usage of the embedding request.
+/// </summary>
+public sealed record EmbeddingUsageMetadata
+{
+    /// <summary>
+    /// Output only. Number of tokens in the prompt.
+    /// </summary>
+    [JsonPropertyName("promptTokenCount")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public int? PromptTokenCount { get; init; }
+
+    /// <summary>
+    /// Output only. List of modalities that were processed in the request input.
+    /// </summary>
+    [JsonPropertyName("promptTokenDetails")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public IReadOnlyList<ModalityTokenCount>? PromptTokenDetails { get; init; }
+}
+
diff --git a/src/GeminiDotnet/V1Beta/Models/RetrievedContext.cs b/src/GeminiDotnet/V1Beta/Models/RetrievedContext.cs
index b5a31ed..1fca646 100644
--- a/src/GeminiDotnet/V1Beta/Models/RetrievedContext.cs
+++ b/src/GeminiDotnet/V1Beta/Models/RetrievedContext.cs
@@ -22,6 +22,21 @@ public sealed record RetrievedContext
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public string? FileSearchStore { get; init; }
 
+    /// <summary>
+    /// Optional. The media blob resource name for multimodal file search results.
+    /// Format: fileSearchStores/{file_search_store_id}/media/{blob_id}
+    /// </summary>
+    [JsonPropertyName("mediaId")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? MediaId { get; init; }
+
+    /// <summary>
+    /// Optional. Page number of the retrieved context, if applicable.
+    /// </summary>
+    [JsonPropertyName("pageNumber")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public int? PageNumber { get; init; }
+
     /// <summary>
     /// Optional. Text of the chunk.
     /// </summary>
diff --git a/src/GeminiDotnet/V1Beta/Part.cs b/src/GeminiDotnet/V1Beta/Part.cs
index 42d6c76..3a5fefb 100644
--- a/src/GeminiDotnet/V1Beta/Part.cs
+++ b/src/GeminiDotnet/V1Beta/Part.cs
@@ -98,6 +98,24 @@ public sealed record Part
     [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
     public string? ThoughtSignature { get; init; }
 
+    /// <summary>
+    /// Server-side tool call. This field is populated when the model
+    /// predicts a tool invocation that should be executed on the server.
+    /// The client is expected to echo this message back to the API.
+    /// </summary>
+    [JsonPropertyName("toolCall")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public ToolCall? ToolCall { get; init; }
+
+    /// <summary>
+    /// The output from a server-side <see cref="V1Beta.ToolCall"/> execution. This field is
+    /// populated by the client with the results of executing the
+    /// corresponding <see cref="V1Beta.ToolCall"/>.
+    /// </summary>
+    [JsonPropertyName("toolResponse")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public ToolResponse? ToolResponse { get; init; }
+
     /// <summary>
     /// Optional. Video metadata. The metadata should only be specified while the video
     /// data is presented in inline_data or file_data.
diff --git a/src/GeminiDotnet/V1Beta/ServiceTier.cs b/src/GeminiDotnet/V1Beta/ServiceTier.cs
new file mode 100644
index 0000000..fecdb5d
--- /dev/null
+++ b/src/GeminiDotnet/V1Beta/ServiceTier.cs
@@ -0,0 +1,32 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1Beta;
+
+[JsonConverter(typeof(JsonStringEnumConverter<ServiceTier>))]
+public enum ServiceTier
+{
+    /// <summary>
+    /// Default service tier, which is standard.
+    /// </summary>
+    [JsonStringEnumMemberName("unspecified")]
+    Unspecified,
+
+    /// <summary>
+    /// Standard service tier.
+    /// </summary>
+    [JsonStringEnumMemberName("standard")]
+    Standard,
+
+    /// <summary>
+    /// Flex service tier.
+    /// </summary>
+    [JsonStringEnumMemberName("flex")]
+    Flex,
+
+    /// <summary>
+    /// Priority service tier.
+    /// </summary>
+    [JsonStringEnumMemberName("priority")]
+    Priority,
+}
+
diff --git a/src/GeminiDotnet/V1Beta/ToolCall.cs b/src/GeminiDotnet/V1Beta/ToolCall.cs
new file mode 100644
index 0000000..9798262
--- /dev/null
+++ b/src/GeminiDotnet/V1Beta/ToolCall.cs
@@ -0,0 +1,37 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1Beta;
+
+/// <summary>
+/// A predicted server-side <see cref="V1Beta.ToolCall"/> returned from the model. This message
+/// contains information about a tool that the model wants to invoke.
+/// The client is NOT expected to execute this <see cref="V1Beta.ToolCall"/>. Instead, the
+/// client should pass this <see cref="V1Beta.ToolCall"/> back to the API in a subsequent turn
+/// within a <see cref="V1Beta.Content"/> message, along with the corresponding <see cref="V1Beta.ToolResponse"/>.
+/// </summary>
+public sealed record ToolCall
+{
+    /// <summary>
+    /// Optional. The tool call arguments.
+    /// Example: {"arg1" : "value1", "arg2" : "value2" , ...}
+    /// </summary>
+    [JsonPropertyName("args")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public JsonElement Arguments { get; init; }
+
+    /// <summary>
+    /// Optional. Unique identifier of the tool call.
+    /// The server returns the tool response with the matching <see cref="Id"/>.
+    /// </summary>
+    [JsonPropertyName("id")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? Id { get; init; }
+
+    /// <summary>
+    /// Required. The type of tool that was called.
+    /// </summary>
+    [JsonPropertyName("toolType")]
+    public required ToolType ToolType { get; init; }
+}
+
diff --git a/src/GeminiDotnet/V1Beta/ToolResponse.cs b/src/GeminiDotnet/V1Beta/ToolResponse.cs
new file mode 100644
index 0000000..1ae96e9
--- /dev/null
+++ b/src/GeminiDotnet/V1Beta/ToolResponse.cs
@@ -0,0 +1,35 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1Beta;
+
+/// <summary>
+/// The output from a server-side <see cref="V1Beta.ToolCall"/> execution. This message contains
+/// the results of a tool invocation that was initiated by a <see cref="V1Beta.ToolCall"/>
+/// from the model. The client should pass this <see cref="V1Beta.ToolResponse"/> back to the API
+/// in a subsequent turn within a <see cref="V1Beta.Content"/> message, along with the corresponding
+/// <see cref="V1Beta.ToolCall"/>.
+/// </summary>
+public sealed record ToolResponse
+{
+    /// <summary>
+    /// Optional. The identifier of the tool call this response is for.
+    /// </summary>
+    [JsonPropertyName("id")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public string? Id { get; init; }
+
+    /// <summary>
+    /// Optional. The tool response.
+    /// </summary>
+    [JsonPropertyName("response")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingDefault)]
+    public JsonElement Response { get; init; }
+
+    /// <summary>
+    /// Required. The type of tool that was called, matching the <c>tool_type</c> in the
+    /// corresponding <see cref="V1Beta.ToolCall"/>.
+    /// </summary>
+    [JsonPropertyName("toolType")]
+    public required ToolType ToolType { get; init; }
+}
diff --git a/src/GeminiDotnet/V1Beta/ToolType.cs b/src/GeminiDotnet/V1Beta/ToolType.cs
new file mode 100644
index 0000000..4f04185
--- /dev/null
+++ b/src/GeminiDotnet/V1Beta/ToolType.cs
@@ -0,0 +1,45 @@
+using System.Text.Json.Serialization;
+
+namespace GeminiDotnet.V1Beta;
+
+/// <summary>
+/// The type of tool in the function call.
+/// </summary>
+public enum ToolType
+{
+    /// <summary>
+    /// Unspecified tool type.
+    /// </summary>
+    [JsonPropertyName("TOOL_TYPE_UNSPECIFIED")]
+    Unspecified = 0,
+
+    /// <summary>
+    /// Google search tool, maps to Tool.google_search.search_types.web_search.
+    /// </summary>
+    [JsonPropertyName("GOOGLE_SEARCH_WEB")]
+    GoogleSearchWeb = 1,
+
+    /// <summary>
+    /// Image search tool, maps to Tool.google_search.search_types.image_search.
+    /// </summary>
+    [JsonPropertyName("GOOGLE_SEARCH_IMAGE")]
+    GoogleSearchImage = 2,
+
+    /// <summary>
+    /// URL context tool, maps to Tool.url_context.
+    /// </summary>
+    [JsonPropertyName("URL_CONTEXT")]
+    UrlContext = 3,
+
+    /// <summary>
+    /// Google maps tool, maps to Tool.google_maps.
+    /// </summary>
+    [JsonStringEnumMemberName("GOOGLE_MAPS")]
+    GoogleMaps = 4,
+
+    /// <summary>
+    /// File search tool, maps to Tool.file_search.
+    /// </summary>
+    [JsonStringEnumMemberName("FILE_SEARCH")]
+    FileSearch = 5,
+}
diff --git a/tests/GeminiDotnet.Extensions.AI.Examples/FileUploadExample.cs b/tests/GeminiDotnet.Extensions.AI.Examples/FileUploadExample.cs
index c1be88f..5027367 100644
--- a/tests/GeminiDotnet.Extensions.AI.Examples/FileUploadExample.cs
+++ b/tests/GeminiDotnet.Extensions.AI.Examples/FileUploadExample.cs
@@ -1,5 +1,4 @@
 using Microsoft.Extensions.AI;
-using System.Diagnostics.CodeAnalysis;
 
 #pragma warning disable MEAI001 // Type is for evaluation purposes only
 
diff --git a/tests/GeminiDotnet.Extensions.AI.Tests/GeminiHostedFileClientTests.cs b/tests/GeminiDotnet.Extensions.AI.Tests/GeminiHostedFileClientTests.cs
index a5eb1d1..a88fe91 100644
--- a/tests/GeminiDotnet.Extensions.AI.Tests/GeminiHostedFileClientTests.cs
+++ b/tests/GeminiDotnet.Extensions.AI.Tests/GeminiHostedFileClientTests.cs
@@ -1,7 +1,6 @@
 using GeminiDotnet.V1Beta;
 using GeminiDotnet.V1Beta.Files;
 using Microsoft.Extensions.AI;
-using System.Diagnostics.CodeAnalysis;
 using System.Net;
 using File = GeminiDotnet.V1Beta.Files.File;