Type Alias UsageMetadata

UsageMetadata: {
    input_tokens: number;
    output_tokens: number;
    total_tokens: number;
    input_token_details?: InputTokenDetails;
    output_token_details?: OutputTokenDetails;
}

Usage metadata for a message, such as token counts.

Type declaration

  • input_tokens: number

    Count of input (or prompt) tokens. Sum of all input token types.

  • output_tokens: number

    Count of output (or completion) tokens. Sum of all output token types.

  • total_tokens: number

    Total token count. Sum of input_tokens + output_tokens.

  • Optionalinput_token_details?: InputTokenDetails

    Breakdown of input token counts.

    Does not need to sum to full input token count. Does not need to have all keys.

  • Optionaloutput_token_details?: OutputTokenDetails

    Breakdown of output token counts.

    Does not need to sum to full output token count. Does not need to have all keys.

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