UP

app.py

@@ -23,8 +23,10 @@ async def generate_stream(prompt, model="gpt-4o", max_tokens=2048):
         stream=True
     )
     async for chunk in response:
-        delta = chunk.choices[0].delta.get("content", "")
-        yield delta
+        # chunk.choices[0].delta は ChoiceDelta オブジェクトなので .content を使う
+        delta_obj = chunk.choices[0].delta
+        if hasattr(delta_obj, "content") and delta_obj.content:
+            yield delta_obj.content
 
 async def generate_content(prompt, model="gpt-4o", max_tokens=2048):
     """
@@ -32,7 +34,6 @@ async def generate_content(prompt, model="gpt-4o", max_tokens=2048):
     """
     content = ""
     placeholder = st.empty()
-    # チャンク毎に表示を更新
     async for delta in generate_stream(prompt, model, max_tokens):
         content += delta
         placeholder.write(content)