diff --git a/aider/resources/model-metadata.json b/aider/resources/model-metadata.json
new file mode 100644
index 000000000..e3970e0af
--- /dev/null
+++ b/aider/resources/model-metadata.json
@@ -0,0 +1,75 @@
+{
+    "claude-3-5-haiku-20241022": {
+        "max_tokens": 4096,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "anthropic",
+        "mode": "chat",
+        "supports_function_calling": true,
+        "tool_use_system_prompt_tokens": 264,
+        "supports_assistant_prefill": true,
+        "supports_prompt_caching": true
+    },
+    "vertex_ai/claude-3-5-haiku@20241022": {
+        "max_tokens": 4096,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "vertex_ai-anthropic_models",
+        "mode": "chat",
+        "supports_function_calling": true,
+        "supports_assistant_prefill": true
+    },
+    "openrouter/anthropic/claude-3-5-haiku": {
+        "max_tokens": 200000,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "openrouter",
+        "mode": "chat",
+        "supports_function_calling": true,
+    },
+    "openrouter/anthropic/claude-3-5-haiku-20241022": {
+        "max_tokens": 4096,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "openrouter",
+        "mode": "chat",
+        "supports_function_calling": true,
+        "tool_use_system_prompt_tokens": 264
+    },
+    "anthropic.claude-3-5-haiku-20241022-v1:0": {
+        "max_tokens": 4096,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "bedrock",
+        "mode": "chat",
+        "supports_function_calling": true,
+    },
+    "us.anthropic.claude-3-5-haiku-20241022-v1:0": {
+        "max_tokens": 4096,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "bedrock",
+        "mode": "chat",
+        "supports_function_calling": true,
+    },
+    "eu.anthropic.claude-3-5-haiku-20241022-v1:0": {
+        "max_tokens": 4096,
+        "max_input_tokens": 200000,
+        "max_output_tokens": 4096,
+        "input_cost_per_token": 0.000001,
+        "output_cost_per_token": 0.000005,
+        "litellm_provider": "bedrock",
+        "mode": "chat",
+        "supports_function_calling": true,
+    },
+}