Greetings from above,
On June 9, Anthropic shipped Claude Fable 5. This isn't a 4.7-to-4.8 bump. It's the first model from the tier above Opus that they've opened up to everyone, and the simplest way I can put it is this: Opus 4.8 is the model you check.
Fable 5 is the one you hand the whole job to.
We didn't wait around to find out what that meant. My team and I spent the first 4 hours after launch running it into the ground, coding, research, deep analysis, vision, long multi-hour jobs, so we could write down what's actually true instead of repeating the press release. As far as I can tell, we're one of the first guides in the world to ship it.
Here is our release on the new X account. Please support!
The short version of what we found:
It holds the whole job. Fable 5 stays on one goal for hours. Stripe pointed it at 50 million lines of Ruby and it finished the migration in a day — work that would have taken a team two months. You brief it, walk away, and check the result when it's done.
It finishes in one pass. Apps that took a hundred prompts last year, it one-shots now. Start it on work harder than anything you'd hand Opus.
It sees what older models miss. Vision is the strongest I've tested — dense charts, messy screenshots, a full app rebuilt from a single picture.
And the part most launch posts skip: it's a premium tier, double the price of Opus 4.8, and it quietly routes biology, chemistry and cybersecurity questions back to 4.8. That's why your chat sometimes "ends itself" in the middle of a task. We wrote the fix for that into the guide too, because I couldn't find it written down anywhere else.
If you own the Complete AI Bundle, the updated Claude Fable 5 Mastery Guide is already sitting in your Notion. No charge, nothing to do. Premium customers always get all releases immediately, often pre-launch.
If not, just open it here.
You'll find the 5 upgrades that matter, the real benchmark numbers, 10 mega-prompts built for Fable 5, and the classifier workaround.
If you don't have the bundle yet, this is a good week to fix that.
FABLE20 takes 20% off everything at godofprompt.ai, bundle included — that lands the Complete AI Bundle at $120.
The same code works on any single resource, straight off the checkout price.
Get everything → godofprompt.ai/products
And one more thing.
You can help a lot with the new X account.
Come follow us there. And engage with posts if you have a moment,
Exclusive guides and giveaways for the X crew are landing very soon, and I don't want you to miss the first one.
That's all I've got. Go hand to Fable 5 something big.
Robert from God of Prompt
P.S. If you put Fable 5 to work on something real this week, reply and tell me what you built. I read every one.
