February 2025
Intermediate
376 pages
9h 25m
Japanese
Content preview from 仕組みからわかる大規模言語モデル 生成AI時代のソフトウェア開発入門
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会話型APIと補完型API
4.1
LLMをアプリケーションに組み込んで使用する際には、APIを介して言語モデルとやり取
りを行います。本書執筆時点で、主要なAPI には会話型 API（Chat API、Conversation API）
と補完型API（Completion API）の 2 種類があります。本節では、特定のLLMに依存しない
形でそれぞれのAPI について解説します。
4.1.1
会話型 API
会話型API は、OpenAIの Chat GPTのように自然な会話を実現するために設計されたイン
タフェースです。対話型LLM（1.2.2 参照）やマルチモーダルLLM（1.2.3 参照）の多くは、
この会話型API を介して利用されます。会話型APIの LLM は、ユーザとAI アシスタントが
交互にメッセージをやり取りすることで、会話の文脈を理解した上で適切な応答を生成しま
す。
会話型API は、メッセージリストをプロンプトとして入力し、次の応答メッセージを生成
します。例えば、下記のようなメッセージリストの入力を考えてみましょう。
ユーザ: 最も古いプログラミング言語はなんですか？
アシスタント: 最も古いプログラミング言語の一つは、1950年代初頭に開発されたFORTRANです。
ユーザ: 誰が開発しましたか？
このプロンプトは、二つのユーザメッセージと一つのアシスタントメッセージから構成され
ています。ユーザは、はじめに最も古いプログラミング言語をアシスタントに問いかけていま
す。アシスタントは答えが ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.