Created by Chris Lattner (creator of Swift, LLVM, and MLIR) and Tim Davis at Modular, Mojo lets ordinary Python-like code run largely unchanged while adding opt-in systems-programming features — structs, SIMD types, and a Rust-inspired ownership model — for performance-critical kernels. Modular fully open-sourced the Mojo compiler under Apache 2.0 on August 18, 2026, completing a staged release that began with its standard library in 2024. The Modular Platform built on Mojo targets CPUs, NVIDIA and AMD GPUs, Apple Silicon, Google TPUs, AWS Trainium, and Qualcomm accelerators, positioning it as an alternative to writing separate CUDA and vendor-SDK code per hardware target.