public sealed class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec : IMessage<SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec>, IEquatable<SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec>, IDeepCloneable<SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec>, IBufferMessage, IMessage
Reference documentation and code samples for the Discovery Engine v1 API class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis document provides reference information for the \u003ccode\u003eModelSpec\u003c/code\u003e class within the Google Cloud Discovery Engine v1 API.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eModelSpec\u003c/code\u003e class, part of \u003ccode\u003eSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types\u003c/code\u003e, specifies the model used for generating content summaries.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version documented is 1.6.0, with previous versions available from 1.5.0 down to 1.0.0-beta06.\u003c/p\u003e\n"],["\u003cp\u003eThe class implements interfaces like \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, and is derived from the base \u003ccode\u003eobject\u003c/code\u003e class.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eVersion\u003c/code\u003e property, of type string, determines which model version to use, supporting values like 'stable' and 'preview', with 'stable' being the default.\u003c/p\u003e\n"]]],[],null,["# Discovery Engine v1 API - Class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec (1.9.0)\n\nVersion latestkeyboard_arrow_down\n\n- [1.9.0 (latest)](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.8.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.8.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.7.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.7.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.6.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.5.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.4.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.3.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.2.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.1.0](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.1.0/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec)\n- [1.0.0-beta06](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/1.0.0-beta06/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec) \n\n public sealed class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec : IMessage\u003cSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec\u003e, IEquatable\u003cSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec\u003e, IDeepCloneable\u003cSearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Discovery Engine v1 API class SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec.\n\nSpecification of the model. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[SearchRequest](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types)[ContentSearchSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types)[SummarySpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types)[ModelSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[SearchRequest](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types)[ContentSearchSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types)[SummarySpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types)[ModelSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[SearchRequest](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types)[ContentSearchSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types)[SummarySpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec)[Types](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types)[ModelSpec](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1.SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.DiscoveryEngine.V1](/dotnet/docs/reference/Google.Cloud.DiscoveryEngine.V1/latest/Google.Cloud.DiscoveryEngine.V1)\n\nAssembly\n--------\n\nGoogle.Cloud.DiscoveryEngine.V1.dll\n\nConstructors\n------------\n\n### ModelSpec()\n\n public ModelSpec()\n\n### ModelSpec(ModelSpec)\n\n public ModelSpec(SearchRequest.Types.ContentSearchSpec.Types.SummarySpec.Types.ModelSpec other)\n\nProperties\n----------\n\n### Version\n\n public string Version { get; set; }\n\nThe model version used to generate the summary.\n\nSupported values are:\n\n- `stable`: string. Default value when no value is specified. Uses a generally available, fine-tuned model. For more information, see [Answer generation model versions and\n lifecycle](https://cloud.google.com/generative-ai-app-builder/docs/answer-generation-models).\n- `preview`: string. (Public preview) Uses a preview model. For more information, see [Answer generation model versions and\n lifecycle](https://cloud.google.com/generative-ai-app-builder/docs/answer-generation-models)."]]
