switch to deepseek r1

app.py

@@ -53,7 +53,7 @@ def index():
                 # Call the GenAI API to get the Manim code
                 completion = client.chat.completions.create(
                     extra_body={},
-                    model="anthropic/claude-3.7-sonnet",
+                    model="deepseek/deepseek-r1-0528-qwen3-8b:free",
                     messages=[
                         {
                         "role": "user",