BerriAI/litellm · error · ValueError

cost_per_ptu_per_hour must be a finite number between 0 and

Error message

cost_per_ptu_per_hour must be a finite number between 0 and {self.MAX_COST_PER_PTU_PER_HOUR}

What it means

Model validator _validate_ptu_bounds on ModelInfo: cost_per_ptu_per_hour was supplied but is negative, exceeds MAX_COST_PER_PTU_PER_HOUR, or is non-finite (NaN/inf). Enforced so PTU cost math cannot produce nonsense spend values.

Source

Thrown at litellm/types/router.py:203

    # router-wide default.
    enable_tag_filtering: bool | None = None

    def __init__(self, id: str | int | None = None, **params) -> None:
        if id is None:
            id = str(uuid.uuid4())  # Generate a UUID if id is None or not provided
        elif isinstance(id, int):
            id = str(id)
        super().__init__(id=id, **params)

    @model_validator(mode="after")
    def _validate_ptu_bounds(self) -> "ModelInfo":
        if self.ptu_count is not None and not 0 < self.ptu_count <= self.MAX_PTU_COUNT:
            raise ValueError(f"ptu_count must be a positive integer no greater than {self.MAX_PTU_COUNT}")
        if (
            self.cost_per_ptu_per_hour is not None
            and not 0 <= self.cost_per_ptu_per_hour <= self.MAX_COST_PER_PTU_PER_HOUR
        ):
            raise ValueError(
                f"cost_per_ptu_per_hour must be a finite number between 0 and {self.MAX_COST_PER_PTU_PER_HOUR}"
            )
        start: Final = _as_utc(self.ptu_effective_from)
        end: Final = _as_utc(self.ptu_effective_to)
        if start is not None and end is not None and end <= start:
            raise ValueError("ptu_effective_to must be after ptu_effective_from")
        return self

    model_config = ConfigDict(extra="allow")

    def __contains__(self, key) -> bool:
        # Define custom behavior for the 'in' operator
        return hasattr(self, key)

    def get(self, key, default=None):
        # Custom .get() method to access attributes with a default value if the attribute doesn't exist
        return getattr(self, key, default)

View on GitHub (pinned to 77b7c6c40c)

Solutions

1. Set cost_per_ptu_per_hour to a finite number within [0, {self.MAX_COST_PER_PTU_PER_HOUR}]; avoid NaN/inf.

When it happens

Trigger: Thrown at litellm/types/router.py:203 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@77b7c6c40c (2026-08-18). Data as JSON: /api/errors/71b7175f76955da8. Report an issue: GitHub.