Modular

license

Modular-Community-License(non-OSI, per-device licensing and a limited redistribution grant, governs MAX/Mojo usage+distribution)

repo-license

Apache-2.0-WITH-LLVM-exception(the source in modular/modular)

source

public(~450k LOC incl MAX kernels + inference server + Mojo stdlib)

commercial-tier

Modular enterprise/managed deployment

Large public codebase, and the repo's own LICENSE is now Apache-2.0 with LLVM Exceptions. The README is explicit that "Modular, MAX and Mojo usage and distribution are licensed under the Modular Community License", which is not OSI approved: read 2026-07-30, it licenses per discrete physical device, grants only a limited right to redistribute certain components, and provides the community variant free of charge subject to withdrawal at any time. So the source is readable and not freely runnable at scale. Marketed as "open"; flag open_washed. Score corrected from 3 to 2 on 2026-07-30. The software ladder has rungs at 1, 2, 4 and 5 and none at 3, so 3/source_available was not a pair any rule could produce; the ladder scores "you can read it and not run it freely" at 2.

• https://github.com/modular/modular recorded 2026-06-04

  Modular Community License (non-OSI) governs MAX/Mojo usage+distribution; ~450k LOC public; MAX 26.3 / Mojo 1.0.0b1 (May 7 2026)

• https://docs.modular.com/max/ recorded 2026-06-04

  MAX serves 500+ open models with OpenAI-compatible endpoints across NVIDIA/AMD/Apple GPUs