deep dives

Deep dives

Longer, researched pieces — one subject taken all the way down. Where the guide is a reference and the week is the pulse, these are the deep cuts, each sourced back to the docs and the community.

2026-07-04
deep dive Fable 5: the ceiling, not the default
Claude Fable 5 is Anthropic's most capable model — and its most expensive. A researched guide to where it wins, when its premium is worth it over Opus 4.8, how to run it overnight, and how to prompt it — grounded in Anthropic's own docs and engineering posts.