diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index b49d97dc4e3..00f41b2f0e1 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -34761,7 +34761,7 @@
         "supports_vision": true,
         "supports_web_search": true
     },
-    "xai/grok-4.20-multi-agent-beta-0309": {
+    "xai/grok-4.20-multi-agent-0309": {
         "cache_read_input_token_cost": 2e-07,
         "input_cost_per_token": 2e-06,
         "litellm_provider": "xai",
@@ -34775,23 +34775,8 @@
         "supports_reasoning": true,
         "supports_tool_choice": true,
         "supports_vision": true,
-        "supports_web_search": true
-    },
-    "xai/grok-4.20-beta-0309-reasoning": {
-        "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
-        "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
-        "mode": "chat",
-        "output_cost_per_token": 6e-06,
-        "source": "https://docs.x.ai/docs/models",
-        "supports_function_calling": true,
-        "supports_reasoning": true,
-        "supports_tool_choice": true,
-        "supports_vision": true,
-        "supports_web_search": true
+        "supports_web_search": true,
+        "aliases": ["xai/grok-4.20-multi-agent-beta-0309"]
     },
     "xai/grok-4.20-0309-reasoning": {
         "cache_read_input_token_cost": 2e-07,
@@ -34807,9 +34792,10 @@
         "supports_reasoning": true,
         "supports_tool_choice": true,
         "supports_vision": true,
-        "supports_web_search": true
+        "supports_web_search": true,
+        "aliases": ["xai/grok-4.20-beta-0309-reasoning"]
     },
-    "xai/grok-4.20-beta-0309-non-reasoning": {
+    "xai/grok-4.20-0309-non-reasoning": {
         "cache_read_input_token_cost": 2e-07,
         "input_cost_per_token": 2e-06,
         "litellm_provider": "xai",
@@ -34822,7 +34808,8 @@
         "supports_function_calling": true,
         "supports_tool_choice": true,
         "supports_vision": true,
-        "supports_web_search": true
+        "supports_web_search": true,
+        "aliases": ["xai/grok-4.20-beta-0309-non-reasoning"]
     },
     "xai/grok-beta": {
         "input_cost_per_token": 5e-06,
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index 76dcfc55c10..720adcf81bf 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -34836,7 +34836,7 @@
         "supports_vision": true,
         "supports_web_search": true
     },
-    "xai/grok-4.20-multi-agent-beta-0309": {
+    "xai/grok-4.20-multi-agent-0309": {
         "cache_read_input_token_cost": 2e-07,
         "input_cost_per_token": 2e-06,
         "litellm_provider": "xai",
@@ -34851,24 +34851,8 @@
         "supports_reasoning": true,
         "supports_tool_choice": true,
         "supports_vision": true,
-        "supports_web_search": true
-    },
-    "xai/grok-4.20-beta-0309-reasoning": {
-        "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
-        "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
-        "mode": "chat",
-        "output_cost_per_token": 6e-06,
-        "source": "https://docs.x.ai/docs/models",
-        "supports_function_calling": true,
-        "supports_prompt_caching": true,
-        "supports_reasoning": true,
-        "supports_tool_choice": true,
-        "supports_vision": true,
-        "supports_web_search": true
+        "supports_web_search": true,
+        "aliases": ["xai/grok-4.20-multi-agent-beta-0309"]
     },
     "xai/grok-4.20-0309-reasoning": {
         "cache_read_input_token_cost": 2e-07,
@@ -34884,9 +34868,10 @@
         "supports_reasoning": true,
         "supports_tool_choice": true,
         "supports_vision": true,
-        "supports_web_search": true
+        "supports_web_search": true,
+        "aliases": ["xai/grok-4.20-beta-0309-reasoning"]
     },
-    "xai/grok-4.20-beta-0309-non-reasoning": {
+    "xai/grok-4.20-0309-non-reasoning": {
         "cache_read_input_token_cost": 2e-07,
         "input_cost_per_token": 2e-06,
         "litellm_provider": "xai",
@@ -34900,7 +34885,8 @@
         "supports_prompt_caching": true,
         "supports_tool_choice": true,
         "supports_vision": true,
-        "supports_web_search": true
+        "supports_web_search": true,
+        "aliases": ["xai/grok-4.20-beta-0309-non-reasoning"]
     },
     "xai/grok-beta": {
         "input_cost_per_token": 5e-06,
diff --git a/tests/test_litellm/test_utils.py b/tests/test_litellm/test_utils.py
index f28fe3ed258..4106214920c 100644
--- a/tests/test_litellm/test_utils.py
+++ b/tests/test_litellm/test_utils.py
@@ -757,6 +757,7 @@ def test_aaamodel_prices_and_context_window_json_is_valid():
                 "code_interpreter_cost_per_session": {"type": "number"},
                 "inference_geo": {"type": "string"},
                 "litellm_provider": {"type": "string"},
+                "aliases": {"type": "array", "items": {"type": "string"}},
                 "max_audio_length_hours": {"type": "number"},
                 "max_audio_per_prompt": {"type": "number"},
                 "max_document_chunks_per_query": {"type": "number"},