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    Get a Model

    ModelInfo Models.Retrieve(ModelRetrieveParamsparameters, CancellationTokencancellationToken = default)
    GET/v1/models/{model_id}

    Get a specific model.

    The Models API response can be used to determine information about a specific model or resolve a model alias to a model ID.

    ParametersExpand Collapse
    ModelRetrieveParams parameters
    required string modelID

    Model identifier or alias.

    IReadOnlyList<AnthropicBeta> betas

    Optional header to specify the beta version(s) you want to use.

    "message-batches-2024-09-24"MessageBatches2024_09_24
    "prompt-caching-2024-07-31"PromptCaching2024_07_31
    "computer-use-2024-10-22"ComputerUse2024_10_22
    "computer-use-2025-01-24"ComputerUse2025_01_24
    "pdfs-2024-09-25"Pdfs2024_09_25
    "token-counting-2024-11-01"TokenCounting2024_11_01
    "token-efficient-tools-2025-02-19"TokenEfficientTools2025_02_19
    "output-128k-2025-02-19"Output128k2025_02_19
    "files-api-2025-04-14"FilesApi2025_04_14
    "mcp-client-2025-04-04"McpClient2025_04_04
    "mcp-client-2025-11-20"McpClient2025_11_20
    "dev-full-thinking-2025-05-14"DevFullThinking2025_05_14
    "interleaved-thinking-2025-05-14"InterleavedThinking2025_05_14
    "code-execution-2025-05-22"CodeExecution2025_05_22
    "extended-cache-ttl-2025-04-11"ExtendedCacheTtl2025_04_11
    "context-1m-2025-08-07"Context1m2025_08_07
    "context-management-2025-06-27"ContextManagement2025_06_27
    "model-context-window-exceeded-2025-08-26"ModelContextWindowExceeded2025_08_26
    "skills-2025-10-02"Skills2025_10_02
    "fast-mode-2026-02-01"FastMode2026_02_01
    ReturnsExpand Collapse
    class ModelInfo:
    required string ID

    Unique model identifier.

    required DateTimeOffset CreatedAt

    RFC 3339 datetime string representing the time at which the model was released. May be set to an epoch value if the release date is unknown.

    required string DisplayName

    A human-readable name for the model.

    JsonElement Type "model"constant

    Object type.

    For Models, this is always "model".

    Get a Model
    ModelRetrieveParams parameters = new() { ModelID = "model_id" };
    
    var modelInfo = await client.Models.Retrieve(parameters);
    
    Console.WriteLine(modelInfo);
    Response 200
    {
      "id": "claude-opus-4-6",
      "created_at": "2026-02-04T00:00:00Z",
      "display_name": "Claude Opus 4.6",
      "type": "model"
    }
    Returns Examples
    Response 200
    {
      "id": "claude-opus-4-6",
      "created_at": "2026-02-04T00:00:00Z",
      "display_name": "Claude Opus 4.6",
      "type": "model"
    }

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