Ultracode Spawned Hundreds of Sub-Agents, Burning Through User Quotas

Users report Anthropic's Fable 5.1 with Ultracode spawned up to 300 sub-agents, exhausting hours of quota in a minute and burning 8.4M tokens to audit a handful of files, with sub-agents frequently failing.

2026-09-02 ~ 2026-09-03 · 3 related posts