From 5e32ace26029aefacb1877126142fb02671dad3c Mon Sep 17 00:00:00 2001
From: Cesar Garcia <128240629+Chesars@users.noreply.github.com>
Date: Wed, 11 Mar 2026 00:11:01 -0300
Subject: [PATCH] Update litellm/types/llms/openai.py

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
---
 litellm/types/llms/openai.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/litellm/types/llms/openai.py b/litellm/types/llms/openai.py
index b09303b5774..27b9545a763 100644
--- a/litellm/types/llms/openai.py
+++ b/litellm/types/llms/openai.py
@@ -1202,7 +1202,7 @@ class ResponseAPIUsage(BaseLiteLLMOpenAIResponseObject):
     @field_validator("cost", mode="before")
     @classmethod
     def parse_cost(cls, v: Any) -> Optional[float]:
-        """Accept cost as a dict (e.g. Perplexity's {total_cost: 0.01}) and extract the float."""
+        """Normalise cost: accept either a float or a dict with a ``total_cost`` key."""
         if isinstance(v, dict):
             return v.get("total_cost")
         return v