diff --git a/src/ts/model/modellist.ts b/src/ts/model/modellist.ts
index a1bcd6f6..c13c08d5 100644
--- a/src/ts/model/modellist.ts
+++ b/src/ts/model/modellist.ts
@@ -182,6 +182,38 @@ export const LLMModels: LLMModel[] = [
         parameters: OpenAIParameters,
         tokenizer: LLMTokenizer.tiktokenO200Base
     },
+    {
+        id: 'gpt-4.5-preview-2025-02-27',
+        internalID: 'gpt-4.5-preview-2025-02-27',
+        name: 'GPT-4.5 (20250227)',
+        provider: LLMProvider.OpenAI,
+        format: LLMFormat.OpenAICompatible,
+        flags: [
+            LLMFlags.hasImageInput,
+            LLMFlags.hasFullSystemPrompt,
+            LLMFlags.hasStreaming,
+            LLMFlags.OAICompletionTokens
+        ],
+        recommended: true,
+        parameters: OpenAIParameters,
+        tokenizer: LLMTokenizer.tiktokenO200Base
+    },
+    {
+        id: 'gpt-4.5-preview',
+        internalID: 'gpt-4.5-preview',
+        name: 'GPT-4.5 (preview)',
+        provider: LLMProvider.OpenAI,
+        format: LLMFormat.OpenAICompatible,
+        flags: [
+            LLMFlags.hasImageInput,
+            LLMFlags.hasFullSystemPrompt,
+            LLMFlags.hasStreaming,
+            LLMFlags.OAICompletionTokens
+        ],
+        recommended: false,
+        parameters: OpenAIParameters,
+        tokenizer: LLMTokenizer.tiktokenO200Base
+    },
     {
         id: 'gpt4om',
         internalID: 'gpt-4o-mini',