diff --git a/opencode.jsonc b/opencode.jsonc
index b969dbf..79f7ac1 100644
--- a/opencode.jsonc
+++ b/opencode.jsonc
@@ -43,7 +43,12 @@
           }
         },
         "claude-sonnet-4-5": {
-          "name": "Claude Sonnet 4.5"
+          "name": "Claude Sonnet 4.5",
+          "limit": { "context": 200000, "output": 64000 },
+          "modalities": {
+            "input": ["text", "image", "pdf"],
+            "output": ["text"]
+          }
         }
       }
     },