Why Your Two-Day Report Now Takes Minutes | Edition 277

Two AI labs landed on the same idea two days apart this month, and the real-world results are already in.

Anthropic's Claude Cowork — generally available on Mac and Windows since April — expanded to web and mobile on July 7. Two days later, OpenAI answered with ChatGPT Work, built on its new GPT-5.6 model. Both do the same basic thing: you hand the agent a goal, it works for hours across your files and connected apps, unattended, and comes back with finished work instead of a chat reply.

What Cowork is actually doing

Airtree, a $2 billion venture firm that's backed Canva and Airwallex among more than 130 portfolio companies, told Anthropic exactly what changed for its team. Partner Jackie Vullinghs: competitor and market research that used to take two full days now gets done in minutes. Board meeting summaries that took 30 minutes to write are now done in two. The marketing team saves two hours a month on reporting alone.

Brainlabs, a media agency of roughly 1,000 people, had 91% of its North American staff actively using Cowork within a few weeks of rolling it out — employees had authored around 400 custom "Skills" (saved, reusable instructions) in that time. CTO Ben Vincent says the drafts Cowork produces land roughly 80% of the way to final copy in the company's own voice, before a human ever touches them.

What ChatGPT Work is actually doing

It's newer — rollout started with Pro, Enterprise, and Edu accounts, with Plus and Business following days later — so public case studies are earlier-stage, but already concrete. Zapier is using it to check new product launches for readiness, cross-referencing Jira tickets against go-to-market schedules. NVIDIA is using it to automate preparation for its GTC conference. Virgin Atlantic's product team — Head of Customer Experience Miles King and Head of Digital Product Nathan Bolt — says it's letting them move through the product life cycle "so much quicker," including building custom dashboards that pull data from multiple sources into one view.

Which one to reach for

Already paying for Claude Pro ($20/mo or up)? Cowork is sitting in your app right now at no extra cost — the better pick for recurring work, since you can put it on a schedule and let it run in the background. ChatGPT Work is still rolling out in stages, and it's the stronger choice when you need one specific, finished deliverable — a deck, a competitive brief, a full report — assembled from a pile of source material.

The catch, and it matters

Neither company is selling this as zero-oversight automation. Airtree, Brainlabs, and OpenAI's own launch materials all frame the win the same way — hours of assembly work compressed into minutes of review, not minutes of assembly and zero review. Whatever comes out still needs a human checking it before it goes anywhere external.

Try this today: pick the one recurring task on your plate that's boring but not hard — the weekly report, the competitor scan, the inbox triage — and hand it to whichever tool you already pay for. That's the real test, not the press release.