Amazon Admits Its Own AI Coding Tool Isn't Good Enough — Adopts Claude Code and Codex Instead
When one of the world’s largest tech companies admits its own AI tool can’t keep up with the competition, you know something interesting is happening. Amazon just did exactly that — and the story behind it is a fascinating window into the messy reality of the AI coding wars. The Kiro Mandate That Backfired Rewind to November 2025. Amazon leadership sent an internal memo telling its tens of thousands of developers to use Kiro, Amazon’s in-house AI coding assistant built on its Bedrock platform, over third-party alternatives. The logic seemed straightforward: Amazon had spent billions building its own AI infrastructure. Why wouldn’t it want its engineers dogfooding their own products? ...