Amazon Prioritizes Internal Kiro AI Over Anthropic's Claude Code for Production

Amazon has implemented a policy restricting employees from using Anthropic's Claude Code for production work without formal approval, instead directing teams to utilize its proprietary AI coding assistant, Kiro. This policy became more evident in late 2023 with internal guidance promoting Kiro over unapproved third-party tools for production code. Despite this internal directive, Amazon remains one of Anthropic's largest investors and a key partner.

Internal Dissent and Credibility Concerns

The internal policy has generated significant criticism within Amazon. Approximately 1,500 employees have formally endorsed the adoption of Claude Code in internal discussion forums. Engineers involved in selling AWS Bedrock, Amazon's platform that provides access to third-party AI services including Claude Code, have raised concerns about promoting a tool they are restricted from using internally.

One employee questioned the credibility of recommending a product not approved for internal use.

Amazon's Stance and Strategic Focus

An Amazon spokesperson affirmed the company's "strong strategic partnership with Anthropic" and stated a focus on Kiro due to "incredible improvements in efficiency and delivery." The spokesperson added that Amazon supports existing tools but does not intend to support additional third-party AI development tools.

While there is no explicit ban on Claude Code, stricter requirements apply to tools used for production code, with an exception process in place.

Performance, Productivity, and Transparency Issues

Some Amazon engineers have debated whether Kiro's emphasis was hindering productivity, with some asserting that Claude Code offered superior performance. They suggested that forcing the adoption of a less competitive product could impede development.

Internal discussions also referenced prior indications that Claude Code had cleared security and legal review for production use, a statement that employees noted was later removed. Employees have also criticized a perceived lack of transparency surrounding the decision not to formally adopt Claude Code.