diff --git a/litellm/llms/fireworks_ai/common_utils.py b/litellm/llms/fireworks_ai/common_utils.py
index 21a630a76d7..b5552583862 100644
--- a/litellm/llms/fireworks_ai/common_utils.py
+++ b/litellm/llms/fireworks_ai/common_utils.py
@@ -72,6 +72,10 @@ def resolve_fireworks_resource_name(model: str) -> str:
     return f"accounts/fireworks/models/{stripped}"
 
 
+def fireworks_cost_map_key(model: str) -> str:
+    return f"fireworks_ai/{resolve_fireworks_resource_name(model)}"
+
+
 class FireworksAIMixin:
     """
     Common Base Config functions across Fireworks AI Endpoints
diff --git a/litellm/utils.py b/litellm/utils.py
index 4a92f9b1244..d088ae7264f 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -5557,9 +5557,9 @@ def _get_potential_model_names(model: str, custom_llm_provider: str | None) -> P
         split_model = strip_bedrock_routing_prefix(split_model)
 
     if custom_llm_provider == "fireworks_ai":
-        from litellm.llms.fireworks_ai.common_utils import resolve_fireworks_resource_name
+        from litellm.llms.fireworks_ai.common_utils import fireworks_cost_map_key
 
-        provider_prefixed_model_name = f"fireworks_ai/{resolve_fireworks_resource_name(split_model)}"
+        provider_prefixed_model_name = fireworks_cost_map_key(split_model)
 
     return PotentialModelNamesAndCustomLLMProvider(
         split_model=split_model,
diff --git a/tests/test_litellm/llms/fireworks_ai/test_fireworks_ai_common_utils.py b/tests/test_litellm/llms/fireworks_ai/test_fireworks_ai_common_utils.py
index 16226a3ce74..5aa1429f2e7 100644
--- a/tests/test_litellm/llms/fireworks_ai/test_fireworks_ai_common_utils.py
+++ b/tests/test_litellm/llms/fireworks_ai/test_fireworks_ai_common_utils.py
@@ -1,8 +1,6 @@
-
 import pytest
 
-
-from litellm.llms.fireworks_ai.common_utils import resolve_fireworks_resource_name
+from litellm.llms.fireworks_ai.common_utils import fireworks_cost_map_key, resolve_fireworks_resource_name
 
 
 @pytest.mark.parametrize(
@@ -43,3 +41,15 @@ from litellm.llms.fireworks_ai.common_utils import resolve_fireworks_resource_na
 )
 def test_resolve_fireworks_resource_name(model, expected):
     assert resolve_fireworks_resource_name(model) == expected
+
+
+@pytest.mark.parametrize(
+    "model, expected",
+    [
+        ("deepseek-r1", "fireworks_ai/accounts/fireworks/models/deepseek-r1"),
+        ("glm-5p3-fast", "fireworks_ai/accounts/fireworks/routers/glm-5p3-fast"),
+        ("accounts/fireworks/models/deepseek-r1", "fireworks_ai/accounts/fireworks/models/deepseek-r1"),
+    ],
+)
+def test_fireworks_cost_map_key(model: str, expected: str) -> None:
+    assert fireworks_cost_map_key(model) == expected