1# File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.
 2
 3from ..._models import BaseModel
 4
 5__all__ = ["ResponseUsage", "InputTokensDetails", "OutputTokensDetails"]
 6
 7
 8class InputTokensDetails(BaseModel):
 9    cached_tokens: int
10    """The number of tokens that were retrieved from the cache.
11
12    [More on prompt caching](https://platform.openai.com/docs/guides/prompt-caching).
13    """
14
15
16class OutputTokensDetails(BaseModel):
17    reasoning_tokens: int
18    """The number of reasoning tokens."""
19
20
21class ResponseUsage(BaseModel):
22    input_tokens: int
23    """The number of input tokens."""
24
25    input_tokens_details: InputTokensDetails
26    """A detailed breakdown of the input tokens."""
27
28    output_tokens: int
29    """The number of output tokens."""
30
31    output_tokens_details: OutputTokensDetails
32    """A detailed breakdown of the output tokens."""
33
34    total_tokens: int
35    """The total number of tokens used."""