diff --git a/tests/test_provider_detection.py b/tests/test_provider_detection.py
index 372a3950d..997f2c572 100644
--- a/tests/test_provider_detection.py
+++ b/tests/test_provider_detection.py
@@ -107,7 +107,10 @@ class TestBuildersRejectLookalikeHosts:
         assert build_chat_url("https://notanthropic.com") == "https://notanthropic.com/chat/completions"
 
     def test_lookalike_anthropic_models_is_openai(self):
-        assert build_models_url("https://anthropic.com.evil.com") == "https://anthropic.com.evil.com/models"
+        # Must hit the generic OpenAI branch, not Anthropic — assert the
+        # provider directly since both branches now end in /v1/models.
+        assert llm_core._detect_provider("https://anthropic.com.evil.com") == "openai"
+        assert build_models_url("https://anthropic.com.evil.com") == "https://anthropic.com.evil.com/v1/models"
 
     def test_anthropic_domain_in_path_is_openai(self):
         assert build_chat_url("https://myproxy.internal/anthropic.com/v1") == "https://myproxy.internal/anthropic.com/v1/chat/completions"
@@ -119,7 +122,9 @@ class TestBuildersRejectLookalikeHosts:
         assert build_chat_url("https://notollama.com") == "https://notollama.com/chat/completions"
 
     def test_lookalike_ollama_models_is_openai(self):
-        assert build_models_url("https://notollama.com") == "https://notollama.com/models"
+        # Must hit the generic OpenAI branch, not Ollama.
+        assert llm_core._detect_provider("https://notollama.com") == "openai"
+        assert build_models_url("https://notollama.com") == "https://notollama.com/v1/models"
 
 
 class TestBuildersLocalAndDockerEndpoints: