Replacing ChatGPT with Claude Cowork

Claude Cowork replaced ChatGPT for a non-technical author, who used it for slides, long-file triage, Excel files, an expense report, and a research brief.

Resultrc_0QBNJW71

The author turned 47 trip receipts into a categorized Excel expense report in 10 minutes, and built a sourced research brief in 2 minutes.

NumbersBlog · Feb 4 · Last checked Oct 13, 2026

Overview

How it was set up

Claude desktop app, Cowork tab, Pro plan. Voice-profile and rules markdown files, the AskUserQuestion form tool, and the Gamma MCP connector for slides.

Worth knowing

Three blurry receipts were flagged and filled in by hand. The author says the tool is not perfect.

A prompt to start from

We are getting sidetracked. Start over without losing this chat's context. First, generate an AskUserQuestion form so I can decide what went wrong and where to go. From my answers, generate a second form to complete [task].

Written by Agentic Feats from the source. Not the author's exact prompt.

Sources 1

Originalruben.substack.com/p/quit-chatgpt

History

Source published: 2026-02-04
Added to Agentic Feats: 2026-10-13
Pick: No
Markdown copy: /c/replacing-chatgpt-with-claude-cowork.md

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