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

A large public codebase whose own LICENSE file is Apache-2.0 with LLVM Exceptions, but the GitHub repository page states that "Modular, MAX and Mojo usage and distribution are licensed under the Modular Community License", which is not OSI approved. That license splits capacity by device architecture, with no cap on x86, ARM or NVIDIA PTX devices but an eight-device cap on any other accelerator type; it grants only "a limited right to redistribute certain components of the SDK"; and while the community variant is "provided free of charge", Modular "may at any time change its provision" with only commercially reasonable notice. The source is therefore readable but not unconditionally runnable or redistributable at scale, which makes this source-available rather than open source despite the product being marketed as open.

• https://github.com/modular/modular recorded 2026-08-09

  Modular, MAX and Mojo usage and distribution are licensed under the Modular Community License

• https://www.modular.com/legal/community recorded 2026-08-09

  Modular grants a limited right to redistribute certain components of the SDK as part of Licensee's Applications, subject to conditions and Distribution Requirements specified in the SDK documentation.

• https://raw.githubusercontent.com/modular/modular/main/LICENSE recorded 2026-08-09

  The MAX repository is licensed under the Apache License v2.0 with LLVM Exceptions: