Amazon is pushing its proprietary AI coding tool, Kiro, over competitors by instructing its engineers to avoid adopting new third-party AI code generation tools and instead use Kiro as the recommended development assistant.
This internal memo indicates Amazon is aiming to consolidate its AI coding efforts despite its substantial investments in other AI companies like Anthropic and OpenAI. Kiro, launched in July 2025, focuses on enabling code generation for websites and apps through plain English commands and integrates features that support a more structured, spec-driven development approach.
Amazon’s memo explicitly discourages use of other popular AI coding tools, including OpenAI’s Codex, Anthropic’s Claude Code, and offerings from startup Cursor, signaling a strategic effort to promote Kiro’s adoption internally.
This move follows Amazon expanding Kiro’s availability worldwide with new features, reflecting a push to strengthen its position in AI developer tools.
Despite Amazon’s $8 billion investment in Anthropic and a $38 billion cloud deal with OpenAI, the company seems focused on building its own proprietary technology to compete with industry leaders more aggressively.
Amazon’s strategic shift to prioritize Kiro shows its commitment to creating in-house AI innovations and capturing more control over its AI development stack, aligning with its broader cloud and AI investment strategy.
This could enhance AWS’s attractiveness for developers by offering a tightly integrated AI coding ecosystem, which may influence future software development productivity and user experience on Amazon platforms.
