Mojo Compiler Is Now Open Source — Qualcomm Delivers

Qualcomm, which acquired Modular for $3.9 billion, has open-sourced the Mojo compiler and full toolchain under the Apache 2.0 license, announced Tuesday at ModCon 2026 in San Francisco. This removes the last major proprietary component of Mojo, allowing developers to build and inspect the source code locally, following the Mojo 1.0 stable release on August 12 that locked in API stability.

After Qualcomm spent $3.9 billion to buy Modular, developers had one central question: would a chipmaker keep a “vendor-neutral” AI toolchain actually neutral? Tuesday at ModCon 2026 in San Francisco, the answer arrived. Mojo’s compiler and full toolchain are now open source under the Apache 2.0 license. You can pull the source, build it locally, and read every line of code that turns Mojo into machine code. The last major proprietary component of Mojo is gone. What Actually Changed This announcement is different from the Mojo 1.0 stable release that dropped on August 12. That release locked in API stability … The post