Modular open-sources Mojo compiler following version 1.0 release

Modular has released version 1.0 of its Mojo programming language, a system language designed for the AI era that aims to combine Python-like syntax with C++-level performance. Following the initial 1.0 release, the company has made the Mojo compiler and its associated toolchain open source under the Apache 2.0 license with LLVM exceptions.

The code is now available in the company’s main repository on GitHub. While the standard library has been accepting external contributions since 2024, Modular noted that it is not yet ready to accept external contributions for the compiler and tools themselves.

Mojo is designed to allow developers to write code that is optimized for hardware like CPUs, GPUs, and NPUs without relying on heavy frameworks. The company intends to evolve the language by adding features such as asynchronous programming models and pattern matching, positioning it as a versatile systems language for AI infrastructure.