Mojo🔥 is now open source
Mojo drops full Python compatibility, embraces AI-assisted migration, and goes open source to focus on GPU programming, marking a fundamental shift in AI-era language design.
Simon Willison · Aug 19, 2026
Mojo drops full Python compatibility, embraces AI-assisted migration, and goes open source to focus on GPU programming, marking a fundamental shift in AI-era language design.
Kenton Varda halted AI-generated PR descriptions on his team, as AI focuses on obvious code details while missing the high-level context, revealing a critical flaw in AI-assisted software communication.
Renowned developer Simon Willison shares how he used Claude AI to quickly build a YAML news preview tool for the Datasette project, demonstrating a new paradigm for AI-assisted development.