diff --git a/packages/phoenix-evals/src/phoenix/evals/models/openai.py b/packages/phoenix-evals/src/phoenix/evals/models/openai.py
index 59d87f034d..8ccd4de3d3 100644
--- a/packages/phoenix-evals/src/phoenix/evals/models/openai.py
+++ b/packages/phoenix-evals/src/phoenix/evals/models/openai.py
@@ -46,6 +46,16 @@ class AzureOptions:
     azure_ad_token_provider: Optional[Callable[[], str]]
 
 
+def _model_supports_temperature(model: str) -> bool:
+    """OpenAI 01 models do not support temperature."""
+    return "o1-" not in model
+
+
+def _model_supports_max_tokens(model: str) -> bool:
+    """OpenAI 01 models do not support max_tokens."""
+    return "o1-" not in model
+
+
 @dataclass
 class OpenAIModel(BaseModel):
     """
@@ -380,15 +390,26 @@ def invocation_params(self) -> Dict[str, Any]:
     @property
     def _default_params(self) -> Dict[str, Any]:
         """Get the default parameters for calling OpenAI API."""
-        return {
-            "temperature": self.temperature,
-            "max_tokens": self.max_tokens,
+        params = {
             "frequency_penalty": self.frequency_penalty,
             "presence_penalty": self.presence_penalty,
             "top_p": self.top_p,
             "n": self.n,
             "timeout": self.request_timeout,
         }
+        if _model_supports_max_tokens(self.model):
+            params.update(
+                {
+                    "max_tokens": self.max_tokens,
+                }
+            )
+        if _model_supports_temperature(self.model):
+            params.update(
+                {
+                    "temperature": self.temperature,
+                }
+            )
+        return params
 
     @property
     def supports_function_calling(self) -> bool:
diff --git a/packages/phoenix-evals/tests/phoenix/evals/functions/test_classify.py b/packages/phoenix-evals/tests/phoenix/evals/functions/test_classify.py
index 7942a43693..84cb6803d7 100644
--- a/packages/phoenix-evals/tests/phoenix/evals/functions/test_classify.py
+++ b/packages/phoenix-evals/tests/phoenix/evals/functions/test_classify.py
@@ -368,7 +368,8 @@ def test_llm_classify_prints_to_stdout_with_verbose_flag(
     assert "Snapped '\\nrelevant ' to rail: relevant" in out, "Snapping events should be printed"
     assert "Cannot snap 'unparsable' to rails" in out, "Snapping events should be printed"
     assert "OpenAI invocation parameters" in out, "Model-specific information should be printed"
-    assert "'model': 'gpt-4', 'temperature': 0.0" in out, "Model information should be printed"
+    assert "'model': 'gpt-4'" in out, "Model information should be printed"
+    assert "'temperature': 0.0" in out, "Model information should be printed"
     assert "sk-0123456789" not in out, "Credentials should not be printed out in cleartext"