diff --git a/litellm/cost_calculator.py b/litellm/cost_calculator.py
index 1ebfe4b8bdf..111c6568bec 100644
--- a/litellm/cost_calculator.py
+++ b/litellm/cost_calculator.py
@@ -606,7 +606,9 @@ def cost_per_token(
                 service_tier=service_tier,
                 data_residency=data_residency,
             )
-        except Exception:
+        except Exception as e:  # noqa: BLE001
+            if "isn't mapped yet" not in str(e):
+                raise
             verbose_logger.debug(
                 "cost_per_token: unknown model=%s, custom_llm_provider=openai. Returning 0.0, 0.0",
                 model,