IMPORTANT: In July 2025, we stopped releasing new versions of KTX modules, and we removed the KTX libraries from the Firebase Android BoM (v34.0.0). If you use KTX APIs from the previously released KTX modules, we recommend that you migrate your app to use KTX APIs from the main modules instead. For details, see the FAQ about this initiative.

com.google.firebase.ai

Classes

`Chat`	Representation of a multi-turn interaction with a model.
`FirebaseAI`	Entry point for all Firebase AI functionality.
`GenerativeModel`	Represents a multimodal model (like Gemini), capable of generating content based on various input types.
`ImagenModel`	Represents a generative model (like Imagen), capable of generating images based on various input types.
`LiveGenerativeModel`	Represents a multimodal model (like Gemini) capable of real-time content generation based on various input types, supporting bidirectional streaming.

Extension functions summary

`FirebaseAI`	`Firebase.ai( app: FirebaseApp, backend: GenerativeBackend, useLimitedUseAppCheckTokens: Boolean )` Returns the `FirebaseAI` instance for the provided `FirebaseApp` and `backend`.
`FirebaseAI`	`Firebase.ai(app: FirebaseApp, backend: GenerativeBackend)` Returns the `FirebaseAI` instance for the provided `FirebaseApp` and `backend`.

Extension properties summary

FirebaseAI

Firebase.ai

The FirebaseAI instance for the default FirebaseApp using the Google AI Backend.

Extension functions

ai

fun Firebase.ai(
    app: FirebaseApp = Firebase.app,
    backend: GenerativeBackend = GenerativeBackend.googleAI(),
    useLimitedUseAppCheckTokens: Boolean
): FirebaseAI

Returns the FirebaseAI instance for the provided FirebaseApp and backend.

Parameters
`backend: GenerativeBackend = GenerativeBackend.googleAI()`	the backend reference to make generative AI requests to.
`useLimitedUseAppCheckTokens: Boolean`	use App Check's limited-use tokens when sending requests to the backend. Learn more about limited-use tokens, including their nuances, when to use them, and best practices for integrating them into your app.

ai

fun Firebase.ai(
    app: FirebaseApp = Firebase.app,
    backend: GenerativeBackend = GenerativeBackend.googleAI()
): FirebaseAI

Returns the FirebaseAI instance for the provided FirebaseApp and backend.

Parameters
`backend: GenerativeBackend = GenerativeBackend.googleAI()`	the backend reference to make generative AI requests to.

Extension properties

ai

val Firebase.ai: FirebaseAI

The FirebaseAI instance for the default FirebaseApp using the Google AI Backend.