2026-05-22·July 2024
Amazon
Prime Day checkout failures affected thousands of customers during peak traffic, resulting in failed orders and duplicate charges.
Vibe coding score
35/100Circumstantial evidence
Reasoning
Amazon has publicly stated it uses AI coding assistants extensively in its engineering teams. The failure pattern — race condition under unexpected load — is consistent with code that passes unit tests but lacks load-tested assumptions. Circumstantial evidence only; no direct confirmation.