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Resources/Guides/Welcome to Claude Opus 5
GuideNotion page·Free

Welcome to Claude Opus 5

The Claude Opus 5 Playbook for e-Commerce is here. 12 Claude Skills, the full migration checklist, the exact prompts 👇 FREE.

Welcome to Claude Opus 5

Get the free copy

Answer five quick questions and the link is yours.

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What's your email address?

What you get

The setup I'd hand an Ecom manager the week Opus 5 dropped

What's inside:

1/ Why your best prompts got worse

Opus 5 thinks by default and checks its own work.

Your "double-check this" line now fights the model instead of helping it.

2/ The effort dial nobody's touching

low medium high xhigh max.

Most people run everything on default. Agentic work belongs at xhigh.

3/ The one change that breaks your old setup

Disabling thinking at xhigh or max now returns a 400 error.

One line in your config. Find it before it finds you.

4/ 12 Claude Skills built for Opus 5

Live store auditor, test analyst, checkout stress tester, confounder hunter.

Upload once, activate with one sentence.

5/ The 9-step migration checklist

4.8 to 5 in order, including the max\_tokens trap that cuts answers off mid-thought.

6/ Where Opus 5 still loses

Some tasks regressed. It also hallucinates slightly more than 4.8.

An honest read, because "best at everything" is never true.

7/ What it actually costs

$5 in, $25 out per million tokens. Same as Opus 4.8.

Near-Fable-5 intelligence at half of Fable's price.

Want the full Claude Opus 5 playbook?

Good to know

Free. Five quick questions, then it's yours.

Not sure where your shop leaks? Book a call and we'll tell you where the money gets lost and what to test first.

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