Struct Usage 

pub struct Usage {
    pub prompt_tokens: u32,
    pub completion_tokens: u32,
    pub total_tokens: u32,
    pub cost: Option<f64>,
    pub input_tokens_details: Option<InputTokensDetails>,
    pub output_tokens_details: Option<OutputTokensDetails>,
}

Token usage statistics for a completion request.

Tracks the number of tokens consumed by the prompt and completion, along with optional cost information and detailed breakdowns.

Note

Different providers may count tokens differently. The total_tokens should always equal prompt_tokens + completion_tokens.

Fields

prompt_tokens: u32

Number of tokens in the input prompt.

completion_tokens: u32

Number of tokens generated in the completion.

total_tokens: u32

Total tokens used (prompt + completion).

cost: Option<f64>

Estimated cost in USD for this request (if available).

input_tokens_details: Option<InputTokensDetails>

Detailed breakdown of input token usage.

output_tokens_details: Option<OutputTokensDetails>

Detailed breakdown of output token usage.

Trait Implementations

impl Clone for Usage

fn clone(&self) -> Usage

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Usage

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Usage

fn deserialize<__D>( __deserializer: __D, ) -> Result<Usage, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Usage

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.