LanguageModelCapabilities

struct · iOS 27.0+ · SDK 27.1

struct LanguageModelCapabilities

A set of capabilities that a language model provides. Use this to declare what your model can do, like tool calling and guided generation: ```swift struct MyLanguageModel: LanguageModel { var capabilities: LanguageModelCapabilities { LanguageModelCapabilities([ .toolCalling, .guidedGeneration, .reasoning ]) } } ``` Inspect ``LanguageModel/capabilities`` ahead of time to detect what the model supports before performing the request: ```swift // Before prompting the model with a generable type, check whether it // supports guided generation. if selectedModel.capabilities.contains(.guidedGeneration) { let response = try await session.respond(to: "...", generating: MySchema.self) } ``` When a model doesn't support a capability, the framework can refuse to dispatch incompatible requests to the executor and throw an ``LanguageModelError/unsupportedCapability(_:)`` error instead.

Members (2)

contains(capability: LanguageModelCapabilities_Capability): boolean

func contains(_ capability: LanguageModelCapabilities.Capability) -> Bool

static init(capabilities: Array<LanguageModelCapabilities_Capability>): LanguageModelCapabilities

init(_ capabilities: [LanguageModelCapabilities.Capability])

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