diff --git a/backend/app/model/model_platform.py b/backend/app/model/model_platform.py
index 94ca0d918..2e81cef7a 100644
--- a/backend/app/model/model_platform.py
+++ b/backend/app/model/model_platform.py
@@ -17,11 +17,12 @@
 from pydantic import BeforeValidator
 
 PLATFORM_ALIAS_MAPPING: Final[dict[str, str]] = {
-    "z.ai": "zhipu",
+    "z.ai": "openai-compatible-model",
     "ModelArk": "openai-compatible-model",
     "grok": "openai-compatible-model",
     "ernie": "qianfan",
     "llama.cpp": "openai-compatible-model",
+    "deepseek": "openai-compatible-model",
 }
 
 # Bedrock Converse requires a region during model initialization.
diff --git a/backend/tests/app/model/test_model_platform.py b/backend/tests/app/model/test_model_platform.py
index c0fc28765..c645767e9 100644
--- a/backend/tests/app/model/test_model_platform.py
+++ b/backend/tests/app/model/test_model_platform.py
@@ -24,10 +24,11 @@
 
 def test_normalize_model_platform_maps_known_aliases():
     assert normalize_model_platform("grok") == "openai-compatible-model"
-    assert normalize_model_platform("z.ai") == "zhipu"
+    assert normalize_model_platform("z.ai") == "openai-compatible-model"
     assert normalize_model_platform("ModelArk") == "openai-compatible-model"
     assert normalize_model_platform("ernie") == "qianfan"
     assert normalize_model_platform("llama.cpp") == "openai-compatible-model"
+    assert normalize_model_platform("deepseek") == "openai-compatible-model"
 
 
 def test_normalize_model_platform_keeps_non_alias_unchanged():