Google released Gemma 4 under the Apache License 2.0, which is on the Open Source Initiative’s approved list; earlier Gemma models use the Gemma Terms of Use, which are not.
2 entriesVersions 2First entry Feb 2024Latest Checked
each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.
On open weightsThat’s why Gemma 4 is released under a commercially permissive Apache 2.0 license.
The post says “We are releasing the Gemma 4 model weights” in E2B, E4B, 26B MoE, and 31B sizes. It also says “This open-source license provides a foundation” under the heading “An open-source license,” and: “They complement our Gemini models, giving developers the industry's most powerful combination of both open and proprietary tools.” The terms page, last modified April 1, 2026, still points models other than Gemma 4 to the Gemma Terms of Use.
each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form.
On open weightsTerms of use permit responsible commercial usage and distribution for all organizations, regardless of size.
The post says: “We’re releasing model weights in two sizes: Gemma 2B and Gemma 7B.” It calls them “open models.” The terms page incorporates the Gemma Prohibited Use Policy at ai.google.dev/gemma/prohibited_use_policy. Distribution is to carry the notice “Gemma is provided under and subject to the Gemma Terms of Use found at ai.google.dev/gemma/terms.”
Maple runs open-weight models inside a hardware-isolated enclave. Maple cannot see your chats. How it works
Every entry cites one primary source, quotes the document’s own words about open weights, and is checked against that source before it publishes. Corrections keep the old wording visible. Methodology · Corrections · Suggest an entry or a correction
