diff --git a/litellm/setup_wizard.py b/litellm/setup_wizard.py
index e2a1a9c40da..38a31a25993 100644
--- a/litellm/setup_wizard.py
+++ b/litellm/setup_wizard.py
@@ -176,7 +176,13 @@ def _styled_input(prompt: str) -> str:
 
 def _yaml_escape(value: str) -> str:
     """Escape a string for safe embedding in a double-quoted YAML scalar."""
-    return value.replace("\\", "\\\\").replace('"', '\\"')
+    return (
+        value.replace("\\", "\\\\")
+        .replace('"', '\\"')
+        .replace("\n", "\\n")
+        .replace("\r", "\\r")
+        .replace("\t", "\\t")
+    )
 
 
 # ---------------------------------------------------------------------------
diff --git a/tests/test_litellm/test_setup_wizard.py b/tests/test_litellm/test_setup_wizard.py
index 21f34ce8161..e10bd893e31 100644
--- a/tests/test_litellm/test_setup_wizard.py
+++ b/tests/test_litellm/test_setup_wizard.py
@@ -23,6 +23,18 @@ def test_yaml_escape_combined():
     assert _yaml_escape('ab\\"cd') == 'ab\\\\\\"cd'
 
 
+def test_yaml_escape_newline():
+    assert _yaml_escape("sk-abc\ndef") == "sk-abc\\ndef"
+
+
+def test_yaml_escape_carriage_return():
+    assert _yaml_escape("sk-abc\rdef") == "sk-abc\\rdef"
+
+
+def test_yaml_escape_tab():
+    assert _yaml_escape("sk-abc\tdef") == "sk-abc\\tdef"
+
+
 # ---------------------------------------------------------------------------
 # SetupWizard._build_config
 # ---------------------------------------------------------------------------
@@ -137,7 +149,8 @@ def test_build_config_azure_no_deployment_skipped():
     """Azure without a deployment name should emit nothing (not fallback to gpt-4o)."""
     env_vars = {"AZURE_API_KEY": "az-key"}  # no deployment sentinel
     config = SetupWizard._build_config([_AZURE], env_vars, "sk-master")
-    assert "azure" not in config or "model_list:" in config  # no azure model emitted
+    # No azure model entry should be emitted when deployment name is absent
+    assert "model: azure/" not in config
 
 
 def test_build_config_no_display_name_collision_openai_and_azure():