Struct PromptTokensDetails 

pub struct PromptTokensDetails {
    pub cached_tokens: Option<u32>,
    pub cache_write_tokens: Option<u32>,
}

prompt_tokens_details: the cached share of the prompt

Fields

cached_tokens: Option<u32>

Prompt tokens served from the provider’s cache (OpenAI’s field)

cache_write_tokens: Option<u32>

Prompt tokens written into the cache this turn. OpenAI bills no write and so has no field; this is the name OpenRouter’s OpenAI-compatible usage gives the count Anthropic bills at a premium.

Trait Implementations

impl Debug for PromptTokensDetails

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

Formats the value using the given formatter.

impl Serialize for PromptTokensDetails

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

where __S: Serializer,

Serialize this value into the given Serde serializer.