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チャットボットから同僚へ:OpenAI AgentsとMicrosoft Copilotが2025年のオフィスワークを再定義する

From Chatbots to Coworkers: How OpenAI Agents and Microsoft Copilot Are Redefining Office Work in 2025

AIはチャットボットから「仕事をこなす存在」へ。OpenAIとMicrosoftが推進するAIエージェントは、職場の"同僚"になれるのか。
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A year ago, many people still thought of AI as a smart chatbot. In 2025, OpenAI pushed that idea much further. On March 11, it released the Responses API, built-in tools such as web search, file search, and computer use, and the Agents SDK, all aimed at helping developers build systems that can plan and complete multi-step tasks. Then, on July 17, OpenAI folded Operator into “ChatGPT agent,” combining deep research, a remote browser, a terminal, and connectors to outside apps. In other words, AI was no longer just answering questions; it was starting to do work. (openai.com)

Microsoft is trying to turn that new ability into everyday office life. In Microsoft 365 Copilot, the company says agents can connect to an organization’s knowledge and data, automate business processes, and work alongside employees. Microsoft 365 Copilot Chat, introduced on January 23, 2025, put agents directly inside secure work chat with enterprise data protection and agent management. At Build on May 19, Microsoft also made the Agent Store generally available, so users could find Microsoft, partner, and custom agents in one place. Behind this shift is a long partnership: Microsoft said in January 2025 that key parts of its OpenAI deal continue through 2030, including Microsoft’s access to OpenAI technology for products like Copilot. (support.microsoft.com)

The clearest examples are Researcher and Analyst, which became generally available on June 2, 2025. Researcher combines OpenAI’s deep research model with Microsoft 365 Copilot’s orchestration and deep search, while Analyst is built on OpenAI’s o3-mini reasoning model, can run Python, and even shows its code in real time. These are not simple chat windows. They can investigate a topic, analyze data, and produce reports that would normally take a human much longer. (microsoft.com)

So, can AI become a coworker? In some ways, yes. It can already act like a junior colleague: fast, tireless, and useful for research, analysis, and routine tasks. But it is still not fully independent. OpenAI says its browser agent hands control back to users for logins, payments, and CAPTCHAs, and Microsoft describes workplace agents as tools that work alongside people. The future of work may not be humans versus AI. It may be humans managing teams that now include AI agents. (openai.com)

by EigoBoxAI
作成:2026/03/19 21:03
レベル:中上級 (語彙目安:4000〜6000語)

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