Hasty Briefsbeta

A postmortem of three recent issues

a day ago
  • #Bug Resolution
  • #AI Infrastructure
  • #Model Quality
  • Three infrastructure bugs degraded Claude's response quality between August and early September.
  • Bugs included context window routing errors, output corruption, and an XLA:TPU miscompilation.
  • Detection was challenging due to overlapping symptoms and privacy constraints.
  • Fixes were deployed, including routing logic corrections and rollbacks of problematic changes.
  • Anthropic is improving evaluations, monitoring, and debugging tools to prevent future issues.