OpenAI has launched the official ChatGPT add-in for Word, available to all account plans worldwide, allowing even free users to experience it directly. This means another major player has joined the ranks of AI assistants in the most popular word processing software.

The add-in offers features that closely align with writers' daily needs: compiling scattered notes into a first draft, summarizing long reports, adjusting tone for different audiences, editing formatting, and unifying terminology. Paid and enterprise accounts can go further, accessing external materials and saving frequently used skills for repeated use. However, there are different levels of access: free users default to using the basic model, while enterprise users can preview the advanced model for free during specific periods; also, the quota for the Word add-in is shared with tools like Codex, not separate.

Its limitations should also be clarified. The model can still make mistakes, the add-in only reads the current document and does not access other files, and the chat history with the web version of ChatGPT is not synchronized — so it's more like a collaborative partner next to the document, rather than an all-knowing writing brain.

What's interesting is the changing landscape. Now, within the same Word window, there are three AI tools simultaneously: Microsoft's own Copilot, Claude for Word from Anthropic, and ChatGPT for Word from OpenAI. Office software is being reshaped by AI. At the same time, the ChatGPT desktop app has added the Appshots feature, which allows you to directly capture the content of any software window and send it to ChatGPT — the barrier to using AI is being further lowered, and people's role in document writing is shifting from "typing by hand" to "giving instructions, reviewing changes, making judgments, and making decisions."