diff --git a/litellm/llms/featherless_ai/chat/transformation.py b/litellm/llms/featherless_ai/chat/transformation.py
index 96702cf886..e62108624d 100644
--- a/litellm/llms/featherless_ai/chat/transformation.py
+++ b/litellm/llms/featherless_ai/chat/transformation.py
@@ -103,10 +103,15 @@ class FeatherlessAIConfig(OpenAIGPTConfig):
         # FeatherlessAI is openai compatible, set to custom_openai and use FeatherlessAI's endpoint
         api_base = (
             api_base
+            or get_secret_str("FEATHERLESS_AI_API_BASE")
             or get_secret_str("FEATHERLESS_API_BASE")
             or "https://api.featherless.ai/v1"
         )
-        dynamic_api_key = api_key or get_secret_str("FEATHERLESS_API_KEY")
+        dynamic_api_key = (
+            api_key
+            or get_secret_str("FEATHERLESS_AI_API_KEY")
+            or get_secret_str("FEATHERLESS_API_KEY")
+        )
         return api_base, dynamic_api_key
 
     def validate_environment(
diff --git a/tests/test_litellm/llms/featherless_ai/chat/test_featherless_chat_transformation.py b/tests/test_litellm/llms/featherless_ai/chat/test_featherless_chat_transformation.py
index b4ef78b913..a1240705fd 100644
--- a/tests/test_litellm/llms/featherless_ai/chat/test_featherless_chat_transformation.py
+++ b/tests/test_litellm/llms/featherless_ai/chat/test_featherless_chat_transformation.py
@@ -7,8 +7,6 @@ Featherless AI is an OpenAI-compatible provider with a few customizations.
 
 import os
 import sys
-from typing import Dict, List, Optional
-from unittest.mock import patch
 
 import pytest
 
@@ -149,6 +147,45 @@ class TestFeatherlessAIConfig:
             )
         assert "Featherless AI doesn't support tools=" in str(excinfo.value)
 
+    def test_get_provider_info_with_featherless_ai_api_key(self, monkeypatch):
+        """Test that FEATHERLESS_AI_API_KEY env var is picked up correctly"""
+        config = FeatherlessAIConfig()
+        for key in ("FEATHERLESS_AI_API_KEY", "FEATHERLESS_API_KEY",
+                     "FEATHERLESS_AI_API_BASE", "FEATHERLESS_API_BASE"):
+            monkeypatch.delenv(key, raising=False)
+        monkeypatch.setenv("FEATHERLESS_AI_API_KEY", "key-from-ai-env")
+        api_base, api_key = config._get_openai_compatible_provider_info(
+            api_base=None, api_key=None
+        )
+        assert api_key == "key-from-ai-env"
+        assert api_base == "https://api.featherless.ai/v1"
+
+    def test_get_provider_info_with_legacy_featherless_api_key(self, monkeypatch):
+        """Test that legacy FEATHERLESS_API_KEY env var still works"""
+        config = FeatherlessAIConfig()
+        for key in ("FEATHERLESS_AI_API_KEY", "FEATHERLESS_API_KEY",
+                     "FEATHERLESS_AI_API_BASE", "FEATHERLESS_API_BASE"):
+            monkeypatch.delenv(key, raising=False)
+        monkeypatch.setenv("FEATHERLESS_API_KEY", "key-from-legacy-env")
+        api_base, api_key = config._get_openai_compatible_provider_info(
+            api_base=None, api_key=None
+        )
+        assert api_key == "key-from-legacy-env"
+        assert api_base == "https://api.featherless.ai/v1"
+
+    def test_get_provider_info_prefers_featherless_ai_key_over_legacy(self, monkeypatch):
+        """Test that FEATHERLESS_AI_API_KEY takes precedence over FEATHERLESS_API_KEY"""
+        config = FeatherlessAIConfig()
+        for key in ("FEATHERLESS_AI_API_KEY", "FEATHERLESS_API_KEY",
+                     "FEATHERLESS_AI_API_BASE", "FEATHERLESS_API_BASE"):
+            monkeypatch.delenv(key, raising=False)
+        monkeypatch.setenv("FEATHERLESS_AI_API_KEY", "preferred-key")
+        monkeypatch.setenv("FEATHERLESS_API_KEY", "legacy-key")
+        _, api_key = config._get_openai_compatible_provider_info(
+            api_base=None, api_key=None
+        )
+        assert api_key == "preferred-key"
+
     def test_default_api_base(self):
         """Test that default API base is used when none is provided"""
         config = FeatherlessAIConfig()