以語意事件進行串流

使用 OpenAI Responses API

James Chapman

AI Curriculum Manager, DataCamp

為什麼要串流？

串流關閉示意

為什麼要串流？

串流開啟示意

語意事件

用結構化更新描述正在發生的事

語意事件

用結構化更新描述正在發生的事

事件類型	說明
`response.created`	模型開始產生
`response.output_text.delta`	文字增量更新
`response.output_text.done`	文字區塊完成
`response.function_call.arguments.delta`	工具引數串流
`response.completed`	整個回應已完成

範例：基本文字串流

prompt = "Explain the seasons of the year concisely to a child."


with client.responses.create(model="gpt-5.4-mini", input=prompt, stream=True) as stream:

    current_text = ""


    for event in stream:
        if event.type == "response.output_text.delta":

            current_text += event.delta
            print(current_text)

範例：基本文字串流

文字串流示意

範例：處理多種事件

prompt = "Explain how a neural network learns concisely for a child."

with client.responses.create(model="gpt-5.4-mini", input=prompt, stream=True) as stream:

    for event in stream:
        if event.type == "response.created":

            print("Response started...\n")


        elif event.type == "response.output_text.done":

            print("\n\n--- Text block finished ---\n")


        elif event.type == "response.completed":

            print(f"\nFull response:\n{current_text}")

範例：處理多種事件

多事件處理示意

範例：工具事件串流

convert_currency() -> str:

date_time: str
from_timezone: str
to_timezone: str

tools = [
    {
        "type": "function",
        "name": "convert_currency",
        ...
     }
]

Frankfurter 標誌

範例：工具事件串流

prompt = "How much is 120 euros in British pounds using the current exchange rate?"


with client.responses.create(model="gpt-5.4-mini", input=prompt, tools=tools, stream=True) as stream:

    current_args = ""

    for event in stream:
        if event.type == "response.function_call_arguments.delta":

            current_args += event.delta
            print("Streaming args:", current_args)

        elif event.type == "response.function_call_arguments.done":

            print("\nFinal arguments:", event.arguments)

        elif event.type == "response.completed":

            print("\n--- Completed ---")

範例：工具事件串流

工具事件串流示意

重點整理

ChatGPT 語意事件示意

¹ ChatGPT 中的語意事件應用

一起來練習吧！

使用 OpenAI Responses API