How to Use Claude Opus for Bigger Projects and Longer Tasks

It's 8am. You've got three deadlines on the go, your inbox is bursting, and you wish you had a research assistant who could just keep working while you handle everything else. Claude Opus — Anthropic's higher-tier model in the Claude family — is built for exactly that kind of morning.

What makes Opus different

Anthropic makes Claude, an AI assistant you can chat with to write, research, brainstorm, and solve problems. They offer it in different tiers (think of them like different engine sizes — bigger engines can pull heavier loads). Opus sits at the top of the range, and it tends to shine on two kinds of work: long-running agent tasks and heavier coding work.

That phrase — long-running agent tasks — deserves a quick unpack. An agent is an AI that can use tools and take actions on its own, rather than only chatting back and forth. "Long-running" means it can keep working through a job that takes many steps or a lot of time. So instead of asking "write me a short email," you can hand it something like "research the top five competitors in my industry, summarise their pricing, and draft a one-page brief" — and let it keep going until the job is done.

The other area Opus is known for is coding — writing and debugging computer code. Even if you have never written a line of code yourself, this still matters, because plenty of tools you use every day (forms, spreadsheets, simple automations) can now be built with a few lines of help from the AI.

How to actually use it

Opus lives behind Anthropic's paid plans. If you are already using Claude, you will usually find it as a model option in the chat dropdown. If you are new to it, here is how to make the most of what it offers:

1. Give it a real, chunky brief. Don't ask "summarise this article." Ask "compare these three articles, pull out the differences in opinion, and write me a 200-word summary I can share with my team." Opus shines on the bigger jobs.

2. Let it use tools. Turn on features that let Claude open links, read files, or run code. These are the "hands" the agent uses to actually finish a task — without them, you are still just chatting.

3. Check in, don't hover. The point of an agent is that it works while you do other things. Give it a task, walk away, come back to a draft.

4. Be specific about the finish line. Tell it what "done" looks like — a spreadsheet, a one-pager, a list of options. Vague endings produce vague results.

Wrap-up

Opus isn't a flashy reinvention — it's a quieter, more useful option for the kind of work most of us never had time to start. Pick one task you've been putting off, brief it clearly, and see what comes back. That is the easiest way to know whether this kind of AI deserves a place in your week.