Amazon Pushes Engineers Toward Its Homegrown AI Coding Tool
Amazon Doubles Down on Kiro AI Coding Tool

In a move that signals shifting priorities in the AI arms race, Amazon has instructed its engineering teams to favor Kiro - the company's internally developed AI coding assistant - over third-party alternatives. The directive, circulated via internal memo and confirmed by company spokespeople, reveals Amazon's growing confidence in its homegrown solution.
While existing third-party tools won't be discontinued outright, Amazon has frozen support expansions for external AI development services. This policy effectively sidelines popular options like OpenAI's Codex and Anthropic's Claude Code - ironic given Amazon's $8 billion stake in Anthropic and its cloud partnership with OpenAI.
"We're seeing tech giants increasingly want to own their AI destiny," observes industry analyst Mara Chen. "After relying on others' foundational models initially, companies like Amazon are now building specialized tools tailored precisely to their workflows."
The memo positions Kiro as more than just another coding assistant. Engineers are being asked to actively critique and improve the tool through structured feedback channels. This collaborative approach suggests Amazon views Kiro as a strategic asset rather than just another productivity booster.
Why Companies Cling to Proprietary Tools
Several factors likely drove Amazon's decision:
- Control over development: Internal tools can be customized for specific use cases
- Security considerations: Proprietary systems minimize exposure of sensitive code
- Cost efficiency: Reducing licensing fees for external services adds up at scale
- Competitive differentiation: Unique developer tools can become recruiting advantages
The shift comes amid fierce competition in enterprise AI solutions. While startups often innovate faster, tech giants increasingly believe they can match - or surpass - third-party offerings when focused on narrow applications.
Will developers embrace Kiro? Early adopters report mixed experiences. "It handles our AWS integrations beautifully," shared one engineer anonymously, "but still struggles with some complex algorithms compared to more mature tools."
The coming months will reveal whether Amazon's bet pays off - or if engineers find creative ways to circumvent the new restrictions.
Key Points:
- 📌 Amazon prioritizes internal AI tool Kiro over third-party coding assistants
- 🔒 Support frozen for new external AI dev services despite partnerships
- 🛠 Employees enlisted as active participants in refining Kiro
- ⚖️ Move reflects broader industry trend toward proprietary AI solutions



