diff --git a/aider/resources/model-metadata.json b/aider/resources/model-metadata.json
index e6e299a9c..290b10d5e 100644
--- a/aider/resources/model-metadata.json
+++ b/aider/resources/model-metadata.json
@@ -65,4 +65,20 @@
         "output_cost_per_token": 0.0000009,
         "mode": "chat",
     },
+    "o3-mini": {
+        "max_tokens": 100000,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 100000,
+        "input_cost_per_token": 0.0000011,
+        "output_cost_per_token": 0.0000044,
+        "cache_read_input_token_cost": 0.00000055,
+        "litellm_provider": "openai",
+        "mode": "chat",
+        "supports_function_calling": true,
+        "supports_parallel_function_calling": true,
+        "supports_vision": true,
+        "supports_prompt_caching": true,
+        "supports_system_messages": true,
+        "supports_response_schema": true
+    },
 }
diff --git a/aider/resources/model-settings.yml b/aider/resources/model-settings.yml
index 803e2b774..87f54af7b 100644
--- a/aider/resources/model-settings.yml
+++ b/aider/resources/model-settings.yml
@@ -622,3 +622,12 @@
   examples_as_sys_msg: true
   extra_params:
       max_tokens: 128000
+
+- name: openai/o3-mini
+  edit_format: diff
+  weak_model_name: gpt-4o-mini
+  use_repo_map: true
+  use_temperature: false
+  editor_model_name: gpt-4o
+  editor_edit_format: editor-diff
+      
\ No newline at end of file