I Tested GPT-6 vs Fable 5.1 With Real Work
One creator ran the exact same week of real work through both frontier models, a website, a game, a script, an inbox, a full business audit, and tracked where they actually diverged.
September 7thA launch-day test of Anthropic's new default Opus model — benchmarks, a landing page build, a script draft, and a motion graphic, all run head-to-head against Fable 5.
Claude Opus 5 ships included in every paid Claude plan, and on launch-day benchmarks and hands-on tests it nearly matches Fable 5's knowledge-work quality at roughly half the cost.
Claude Opus 5 launched a day behind schedule as Anthropic's new default Opus model, and it ships inside every paid Claude plan — Pro, Max, Team, and Enterprise — with no extra usage cap, unlike Fable 5, which still costs more or eats into a separate allowance. Benchmarks show Opus 5 beating every other model, including Fable 5, on general knowledge work, while trailing only in legal and health tasks. Quick hands-on tests — a landing page build, a YouTube script, and a Claude Design motion graphic — put Opus 5 neck-and-neck with Fable 5 in output quality, but faster and at roughly half the price. The takeaway: build your own task-specific benchmark before switching, but Opus 5 is worth trying as a default model now.
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Cold open: Opus 5 launched late but is more powerful than expected, and it's included with a regular Claude Pro plan.

Opus 5 is the new default on Claude Max, selectable (not default) on Pro, and available on Team, Enterprise, the API, Claude Cowork, and Claude Code.

Fable 5 is still Anthropic's most powerful model but costs extra and is usage-capped on Pro; Opus 5 targets near-Fable intelligence at roughly half the price, included with Pro.

Opus 5 outscores Fable 5 and every other tested model on knowledge work, novel problem-solving, agentic search, and business workflows; Fable 5 still leads on legal and health tasks. Zapier's AutomationBench shows every Opus 5 effort level beating every other model.

Hands-on landing page build (Opus 5 close to Fable 5, faster, clearly ahead of Opus 4.8) and a YouTube script test where Opus 5 lands on par with Fable 5 but neither is usable unedited.

Recommendation to turn your own recurring AI tasks into a personal benchmark so new model releases can be judged against results you already know.

A Claude Design motion graphic comes out nearly identical between Opus 5 and Fable 5, with Opus 5 finishing several minutes faster at half the cost.

Caveat that this is a first look, not exhaustive testing; the creator's early impression is that Opus 5 feels as good as Fable 5 for knowledge work while being cheap enough to be a new default.

Call to run your own tasks through Opus 5, share results in comments, and a pointer to the creator's existing Claude Cowork breakdown video.
Claude Opus 5 launched included in every paid plan and lands close to Fable 5's knowledge-work quality at roughly half the price, but the real lesson is to test any new model against your own recurring tasks rather than trusting benchmarks alone.
“Claude Opus five is here a day later than it was supposed to come out, but I'm not even gonna bury the lead here. It is incredible.”
“Opus five is designed to bring you very close to that level of intelligence at half the price.”
“Unlike Fable, Opus five is included with regular Claude Pro plans.”
“The results between Fable five and Opus five are on par with each other, but, of course, Opus five is a lot cheaper.”
“It feels to me as good as Fable for knowledge work, but actually usable as a default model.”
See every word as it's spoken — crank it to 2× and still catch all of it. The same dual-channel trick behind Amazon's Kindle + Audible.
Claude Opus 5 shipped a day late, but the creator opens by saying it's worth the wait — and unlike Fable 5, it's already sitting inside every paid Claude plan with no extra cost.
Turn your own recurring AI tasks into a personal test set, then run every new model release against those same tasks to compare against results you're already used to getting, rather than relying solely on public benchmarks.
“if you want my full breakdown on how to use the new Claude Cowork and how I use it with my own workflows, click on this video right here”
verbal callout plus an on-screen linked video card pointing to the creator's existing Claude Cowork breakdown, framed as a natural follow-up rather than a hard sell
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07:15Add Modern Creator as a preferred source and Google shows you more of our breakdowns in Search, Top Stories, and AI Overviews. It only changes what you see, and you can undo it in your Google settings anytime.
One creator ran the exact same week of real work through both frontier models, a website, a game, a script, an inbox, a full business audit, and tracked where they actually diverged.
September 7thA head-to-head test of the browsers built into Claude Cowork and ChatGPT Work, covering speed, form-filling, shopping, and everyday browser features.
September 2ndA YouTube tutorial on wiring ChatGPT and Claude into a $79 desktop editor called Borumi so they cut, zoom, and animate your talking-head videos for you.
August 19thOpenAI, Anthropic, and Google all released flagship models in the same week, Gemini Notebook quietly capped how much you can generate, and Grok's new payments plugin lets a bot spend your money with your sign-off.
September 4thA YouTuber walks through the eleven-bot staff living inside Grok Bot, each with a name, a job, and a cloud computer that keeps working after he closes his laptop.
August 27thAnthropic published an official prompting guide for Opus 5 — five rules, tested live by building a real website in under three minutes.
July 27th