add claude sonnet 4 5

app.py

@@ -2088,6 +2088,11 @@ AVAILABLE_MODELS = [
         "id": "claude-opus-4.1",
         "description": "Anthropic Claude Opus 4.1 via Poe (OpenAI-compatible)"
     },
+    {
+        "name": "Claude-Sonnet-4.5",
+        "id": "claude-sonnet-4.5",
+        "description": "Anthropic Claude Sonnet 4.5 via Poe (OpenAI-compatible)"
+    },
     {
         "name": "Qwen3 Max Preview",
         "id": "qwen3-max-preview",
@@ -2233,6 +2238,12 @@ def get_inference_client(model_id, provider="auto"):
             api_key=os.getenv("POE_API_KEY"),
             base_url="https://api.poe.com/v1"
         )
+    elif model_id == "claude-sonnet-4.5":
+        # Use Poe (OpenAI-compatible) client for Claude-Sonnet-4.5
+        return OpenAI(
+            api_key=os.getenv("POE_API_KEY"),
+            base_url="https://api.poe.com/v1"
+        )
     elif model_id == "qwen3-max-preview":
         # Use DashScope International OpenAI client for Qwen3 Max Preview
         return OpenAI(
@@ -6308,6 +6319,13 @@ Generate the exact search/replace blocks needed to make these changes."""
                     stream=True,
                     max_tokens=16384
                 )
+            elif _current_model["id"] == "claude-sonnet-4.5":
+                completion = client.chat.completions.create(
+                    model="Claude-Sonnet-4.5",
+                    messages=messages,
+                    stream=True,
+                    max_tokens=16384
+                )
             else:
                 completion = client.chat.completions.create(
                     model=get_real_model_id(_current_model["id"]),