🪦 Dead
Anthropic Legacy Workbench
Feature removed · Replaced by Playground · shut down August 17, 2026
- Born
- Died
- Lifespan
- 3y 1m
- Cause of death
- Replaced by Playground
- Killed by
- Anthropic
- Type
- Service
Announced July 17, 2026 and gone August 17, the legacy Console Workbench took its saved prompts, variables and evals with it — none migrated to the replacement "playground" that opened a day later. The three experimental prompt-tool endpoints (generate_prompt, improve_prompt, templatize_prompt) were retired the same day and now return errors. Thirty-one days' notice for an API that was, to be fair, always labelled experimental.
Collateral damage: Saved prompts, variables and evals in the old Workbench were not carried over; anything not exported by August 17 was lost.