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.

GenerateContentResponse

public final class GenerateContentResponse

A response from the model.

Summary

Public fields
`final @NonNull List<@NonNull Candidate>`	`candidates` The list of `Candidate` responses generated by the model.
`final @NonNull List<@NonNull FunctionCallPart>`	`functionCalls` Convenience field to list all the `FunctionCallPart`s in the response.
`final @NonNull List<@NonNull InlineDataPart>`	`inlineDataParts` Convenience field representing all the `InlineDataPart`s in the first candidate.
`final PromptFeedback`	`promptFeedback` Feedback about the prompt send to the model to generate this response.
`final String`	`text` Convenience field representing all the text parts in the response as a single string.
`final String`	`thoughtSummary` Convenience field representing all the text parts in the response that are marked as thoughts as a single string, if they exist.
`final UsageMetadata`	`usageMetadata` Information about the number of tokens in the prompt and in the response.

Public constructors
`GenerateContentResponse( @NonNull List<@NonNull Candidate> candidates, PromptFeedback promptFeedback, UsageMetadata usageMetadata )`

Public fields

candidates

public final @NonNull List<@NonNull Candidate> candidates

The list of Candidate responses generated by the model.

functionCalls

public final @NonNull List<@NonNull FunctionCallPart> functionCalls

Convenience field to list all the FunctionCallParts in the response.

The value is an empty list if the response contains no candidates.

Any part that's marked as a thought will be ignored. Learn more about thinking.

inlineDataParts

public final @NonNull List<@NonNull InlineDataPart> inlineDataParts

Convenience field representing all the InlineDataParts in the first candidate.

This also includes any ImagePart, but they will be represented as InlineDataPart instead.

The value is an empty list if the response contains no candidates.

Any part that's marked as a thought will be ignored. Learn more about thinking.

promptFeedback

public final PromptFeedback promptFeedback

Feedback about the prompt send to the model to generate this response. When streaming, it's only populated in the first response.

text

public final String text

Convenience field representing all the text parts in the response as a single string.

The value is null if the response contains no valid text candidates.

Any part that's marked as a thought will be ignored. Learn more about thinking.

thoughtSummary

public final String thoughtSummary

Convenience field representing all the text parts in the response that are marked as thoughts as a single string, if they exist.

Learn more about thinking.

usageMetadata

public final UsageMetadata usageMetadata

Information about the number of tokens in the prompt and in the response.

Public constructors

GenerateContentResponse

public GenerateContentResponse(
    @NonNull List<@NonNull Candidate> candidates,
    PromptFeedback promptFeedback,
    UsageMetadata usageMetadata
)