License Information Segment Anything Model License (SAM3 compatible version)
This agreement defines the terms of use for SAM materials (models, code, weights, documentation, etc.) provided by Meta .
By using them, you agree to this license. (November 19, 2025 version: SAM 3 material version)
Please see the original SAM license for the latest version and details.
- SAM License original text
: https://github.com/facebookresearch/sam-3d-body?tab=License-1-ov-file#readme
The terms of the SAM License are subject to change. Meta may change the license at any time, effective immediately. Please note that this information is current as of November 19, 2025 , but may be subject to change in the future. Please be sure to check the latest version.
SAM Material Contents
- Machine learning model code
- Trained model weights
- Code for inference, training, and fine-tuning
- Other Meta distribution related elements
- Documents (specifications, manuals, etc.)
Grant of rights (use, reproduction, distribution, modification)
Meta grants you the following:
Worldwide, non-exclusive, royalty-free license
- use
- Reproduction
- distribution
- Creating derivative works (modified versions)
however:
- Non-transferable
- Limited License
Patent License
- Free use of some Meta patents that are necessarily included in the SAM Materials.
- However, if a user sues Meta for patent infringement, that patent license terminates .
Redistribution conditions
When redistributing or providing to a third party:
- Must include a copy of this License
- When publishing research results, please clearly state that you used SAM.
- Use must comply with export control, sanctions, privacy, and other applicable laws.
- Reverse engineering by third parties or encouraging them is prohibited.
- It must not be used for prohibited purposes such as military, nuclear, espionage, or illegal weapons.
support
- Meta has no obligation to support
- Support, if provided, is provided “as is” and “without warranty.”
Disclaimer of Warranties
SAM MATERIALS ARE PROVIDED ENTIRELY WITHOUT WARRANTY :
- Ownership
- Non-infringement
- Merchandise
No warranty is made, including without limitation, fitness for a particular purpose .
All risks associated with use are borne by the user.
Limitation of Liability
- All direct, indirect, special, consequential and punitive damages are excluded.
- Meta is not responsible for any loss of profits, etc.
Intellectual Property Rights
Meta ownership
- The SAM Materials and any derivative works created by Meta
User owned
- Any derivative works you create are yours
License revocation due to litigation
If a user files a lawsuit claiming that something based on SAM infringes Meta’s rights:
→ The license will terminate immediately. In addition, the user will be obligated to indemnify Meta
for any claims from third parties regarding the use or distribution of SAM (indemnity).
Contract Term and Termination
- The contract begins when you access SAM
- Meta may terminate the Agreement if the User breaches any of the Terms.
- After termination: User is obligated to delete and cease using SAM Materials.
- Some provisions, such as disclaimer of warranties and limitations of liability, remain after termination.
Governing Law and Jurisdiction
- California law applies
- Any disputes will be subject to the exclusive jurisdiction of the courts of California.
License Changes
- Meta may change the license at any time.
- Changes are effective immediately
- Your continued use after any changes will be deemed to be acceptance of the changes.
- With some exceptions, agreements with parties other than Meta are invalid unless they are in writing (signed).
summary
- Meta permits you to use, distribute, and modify SAM, but does not warrant it.
- Redistribution must be under the same license.
- Military and illegal uses are prohibited.
- Filing a patent lawsuit against Meta would void the patent license.
- Meta will not be liable for damages.
- The user owns the derivative works, but SAM itself and any derivative works created by Meta are owned by Meta.
- The court is in California.
- The license may be changed at any time at Meta’s discretion.
Can it be used commercially?
Commercial use is allowed, but with important restrictions.
Grant of License Rights (1.a)
You are granted a non-exclusive, worldwide, non-transferable, royalty-free limited license to use, reproduce, distribute, copy, create derivative works from, and modify the SAM Materials. You are granted a perpetual, worldwide, non
-exclusive, no-charge, royalty-free, irrevocable (except as provided in this paragraph) patent license to make, have made, use, offer for sale, sell, import, and otherwise transfer the SAM Materials.
It’s “royalty free” so you don’t have to pay Meta.
1. License Rights and Redistribution. Grant of Rights. You are granted a non-exclusive, worldwide, non-transferable, royalty-free limited license under any Meta intellectual property rights or other rights owned by Meta in the SAM Materials to use, reproduce, distribute, copy, create derivative works from, and modify the SAM Materials. i. Patent License Grant. Subject to the terms and conditions of this License, you are granted a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as provided in this paragraph) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, provided that such license applies only to those patent claims licensable by Meta that are necessarily infringed, either alone or in combination with your Contributions to the SAM 3 Materials. If you institute patent litigation (including a cross-claim or counterclaim in a litigation) against any party alleging that SAM 3 Materials incorporated in the Work constitute direct or contributory patent infringement, then the patent license granted to you under this License with respect to that Work will terminate as of the date such litigation is filed.Source: https://github.com/facebookresearch/sam-3d-body?tab=License-1-ov-file#readme
However, there are cases where commercial use is prohibited.
The following uses, commercial or non-commercial, are prohibited (1.bv):
Prohibited Uses
- military purpose
- war aims
- espionage
- Development of firearms and illegal weapons
- Nuclear Industry and Applications
- ITAR (United States Munitions List) applications
- Transactions or use with sanctioned countries or individuals
In other words,
general commercial use is OK, but commercial use is prohibited in certain fields such as military and nuclear power .
Practical points to note when using for commercial purposes
1. Derivative works become your property (5.a)
If you create a commercial product, you are explicitly guaranteed:
5. Intellectual Property.a. Subject to Meta’s ownership rights in the SAM Materials and derivative works created by or for Meta, as between you and Meta, with respect to derivative works and modifications of the SAM Materials created by you, you are and will remain the owner of such derivative works and modifications .Source: https://github.com/facebookresearch/sam-3d-body?tab=License-1-ov-file#readme
② When distributing, a copy of the SAM license must be attached (1.bi).
If you distribute it, you must include the SAM license.
*You can also add your own license to your derivative works, but you will need a copy of SAM for the “SAM parts.”
③ All warranties are exempted (3)
Please note the following when using for commercial purposes: SAM materials are completely provided with no warranty. Output is at
the user’s sole risk.
- Output accuracy
- legal issues
- Security
- Third-party claims
You (the commercial user) are responsible for the following:
④ If a patent lawsuit is filed, the patent license will be terminated (1.ai)
If you incorporate SAM into your product and then
sue Meta for patent infringement, you risk losing your SAM patent license and being unable to continue using your product.
reference
- SAM License original text
: https://github.com/facebookresearch/sam-3d-body?tab=License-1-ov-file#readme
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