diff --git a/litellm/model_prices_and_context_window_backup.json b/litellm/model_prices_and_context_window_backup.json
index 76a7c0640af..50bfffb8c88 100644
--- a/litellm/model_prices_and_context_window_backup.json
+++ b/litellm/model_prices_and_context_window_backup.json
@@ -35504,13 +35504,13 @@
     },
     "vertex_ai/xai/grok-4.20-non-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "vertex_ai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models (Vertex AI Model Garden)",
         "supports_function_calling": true,
         "supports_response_schema": true,
@@ -35520,13 +35520,13 @@
     },
     "vertex_ai/xai/grok-4.20-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "vertex_ai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models (Vertex AI Model Garden)",
         "supports_function_calling": true,
         "supports_reasoning": true,
@@ -36840,13 +36840,13 @@
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     "xai/grok-4.20-multi-agent-beta-0309": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models",
         "supports_function_calling": true,
         "supports_prompt_caching": true,
@@ -36857,13 +36857,13 @@
     },
     "xai/grok-4.20-beta-0309-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models",
         "supports_function_calling": true,
         "supports_prompt_caching": true,
@@ -36874,13 +36874,13 @@
     },
     "xai/grok-4.20-0309-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models",
         "supports_function_calling": true,
         "supports_reasoning": true,
@@ -36890,13 +36890,13 @@
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     "xai/grok-4.20-beta-0309-non-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models",
         "supports_function_calling": true,
         "supports_prompt_caching": true,
diff --git a/model_prices_and_context_window.json b/model_prices_and_context_window.json
index b181df94131..873de3ef98e 100644
--- a/model_prices_and_context_window.json
+++ b/model_prices_and_context_window.json
@@ -35544,13 +35544,13 @@
     },
     "vertex_ai/xai/grok-4.20-non-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "vertex_ai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models (Vertex AI Model Garden)",
         "supports_function_calling": true,
         "supports_response_schema": true,
@@ -35560,13 +35560,13 @@
     },
     "vertex_ai/xai/grok-4.20-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "vertex_ai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models (Vertex AI Model Garden)",
         "supports_function_calling": true,
         "supports_reasoning": true,
@@ -36870,13 +36870,13 @@
     },
     "xai/grok-4.20-multi-agent-beta-0309": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models",
         "supports_function_calling": true,
         "supports_prompt_caching": true,
@@ -36887,13 +36887,13 @@
     },
     "xai/grok-4.20-beta-0309-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
         "mode": "chat",
-        "output_cost_per_token": 6e-06,
+        "output_cost_per_token": 2.5e-06,
         "source": "https://docs.x.ai/docs/models",
         "supports_function_calling": true,
         "supports_prompt_caching": true,
@@ -36904,13 +36904,13 @@
     },
     "xai/grok-4.20-0309-reasoning": {
         "cache_read_input_token_cost": 2e-07,
-        "input_cost_per_token": 2e-06,
+        "input_cost_per_token": 1.25e-06,
         "litellm_provider": "xai",
-        "max_input_tokens": 2000000,
-        "max_output_tokens": 2000000,
-        "max_tokens": 2000000,
+        "max_input_tokens": 1000000,
+        "max_output_tokens": 1000000,
+        "max_tokens": 1000000,
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+        "output_cost_per_token": 2.5e-06,
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         "supports_reasoning": true,
@@ -36920,13 +36920,13 @@
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     "xai/grok-4.20-beta-0309-non-reasoning": {
         "cache_read_input_token_cost": 2e-07,
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+        "input_cost_per_token": 1.25e-06,
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-        "max_output_tokens": 2000000,
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+        "max_input_tokens": 1000000,
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+        "max_tokens": 1000000,
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+        "output_cost_per_token": 2.5e-06,
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         "supports_prompt_caching": true,