Felix Ryberg

Anthropic. Leads Claude Code and co-works on Claude desktop. Surfaced in the vault for the "third era" framing of how people use AI — questions → tasks → responsibilities — that crystallizes the Tasks to Responsibilities Shift.

Key quote (Fable 5 launch reaction, June 2026)

"With Fable 5, I've personally moved on to responsibilities or loops. I no longer tell Claude to investigate a particular crash report. It runs a loop watching every crash report that comes in. Its job is no longer to help me fix a crash. It's to keep our apps from crashing."

The framing decomposes neatly:

• Era 1 (chat) — model as smarter search / autocomplete.
• Era 2 (tasks) — humans hand a bounded problem; every task starts and ends with a human in the loop.
• Era 3 (responsibilities / loops) — model owns an outcome continuously; humans set scope, not start-end.

Pairs with Boris Cherny's "my job is to write loops" framing on CNBC. Both Anthropic leaders are converging on the same primitive from different angles.

Predictions on file

• "Our industry's apps in 2027 will look very very different from the ones we have today."
• When AI moves from tasks to responsibilities, primary tooling will shift the way it did from IDEs to coding agents in 2024–2026.

Sources

• Fable 5 Raises the Bar for AI Ambition — third-era framing, crash-report responsibility example
• The Way We Use AI is Changing — the Cherny quote that pairs with Ryberg's framing