Can Open Models Be Used Commercially? Four License Checks Before a Company Adopts One
Not always. It depends on the license of the exact version you download, not on the model's reputation or the word "open". Before adopting one, check four things: whether the license allows commercial use, whether there is a user-count or revenue threshold, whether there is an acceptable use policy (a list of prohibited uses), and what conditions apply to derivative models and redistribution. Versions within the same model family can carry different licenses.
1. "Open" does not mean "anything goes"
In everyday use, "open-source model" usually means a model whose weights you can download and run on your own hardware; "open-weight" is the more precise term. Being downloadable does not mean there are no conditions. The conditions are in the license file that comes with each model.
Licenses fall roughly into two groups:
- General permissive open-source licenses, such as the Apache License 2.0: they grant royalty-free rights to reproduce, prepare derivative works, and distribute. Redistribution requires including a copy of the license, marking modified files as changed, and retaining existing copyright and license notices.
- Licenses or terms written by the model provider: these may add user-scale thresholds, prohibited uses, attribution rules, or naming rules for derivative models.
So the answer to "can we use it commercially?" always comes from the official license text for that version.
2. Four checks before adoption
| Check | What to look for | Why it matters |
|---|---|---|
| 1. Commercial use allowed | Whether the grant is restricted to research or non-commercial use | Some models allow only research or personal use |
| 2. User-count or revenue threshold | Above what number of users or revenue a separate license is required | Most small and mid-sized companies will not reach it, but confirm whether it exists and where it sits |
| 3. Acceptable use policy | The prohibited-use list, and whether it is a condition of the license | Breaching a prohibited use can mean breaching the license |
| 4. Derivative models and redistribution | How fine-tuned models must be named, whether attribution is required, what must accompany distribution | Installing a model in a system delivered to a customer may count as redistribution |
Read each model's official license page yourself: find the license file (usually LICENSE) on the model's official download page or repository and match it to the version number you actually downloaded.
3. Record licenses in the component inventory
OWASP's supply chain guidance for LLM applications (LLM03:2025) recommends inventorying all license types involved with a bill of materials (BOM) and keeping an up-to-date software bill of materials (SBOM). In practice, for each system you should be able to look up:
- Which model, which version, and where it was downloaded from.
- The license name for that version and a copy of the license file.
- The licenses of the tools and packages that run the model, recorded separately from the model license.
- The result of the four checks, with who confirmed it and when.
When a model is updated, read the new version's license again. Licensing involves legal judgment; before commercial use, have legal counsel confirm against your actual use.
How Think BIG handles model and component licenses
Think BIG (Think BIG Make it Real Co., Ltd.) is an enterprise AI Agent deployment provider headquartered in Taiwan. Starting from protecting company data, we build AI Agents inside the client's own environment (company hardware, or a cloud server under the company's account). There are two deployment options: with the on-premises version, models and documents are processed on company hardware; with the cloud-assisted version, employees' questions and the document passages the system retrieves are sent to the model provider for processing.
- Third-party components reviewed for source and license: third-party packages are reviewed for source and license, pinned, and not auto-updated.
- Models can be changed: when a model is changed, the workflow and output quality are re-verified, and whether existing settings still apply is decided by test results.
- Pre-delivery security review: before each system is delivered, its code and configuration go through a security review; if it does not pass, it is not delivered.
See Enterprise and Trust.
The actual scope of Think BIG's services follows what both parties confirm.
FAQ
- Q1: Can all open-source models be used commercially for free?
- Not always. Being able to download the weights does not mean there are no conditions. Check the license of the exact version: some allow only research use, and some have user-scale thresholds or prohibited-use lists.
- Q2: How do you confirm whether a model can be used commercially?
- Find the license file on the model's official download page or repository, match it to the version you downloaded, and check four points: commercial use, user-count or revenue thresholds, acceptable use policy, and derivative and redistribution conditions.
- Q3: Can a fine-tuned model be sold or delivered to customers?
- It depends on the original license's terms for derivative models and redistribution, such as naming rules, attribution requirements, and documents that must accompany distribution. Installing a model in a system delivered to a customer may count as redistribution.
- Q4: How should a company manage the model licenses it uses?
- Record model, version, download source, license file, and check results in the component inventory (SBOM), record tool and package licenses separately, and recheck when models are updated. Have legal counsel confirm before commercial use.
- Apache License, Version 2.0 (Section 2 grant, Section 4 redistribution conditions): www.apache.org
- OWASP, LLM03:2025 Supply Chain (license inventory via BOM, SBOM, verifiable sources): genai.owasp.org
This article summarizes public official documents, laws, and security standards to help companies evaluate AI adoption. It is not legal advice. For Taiwan law, the latest text on the Laws & Regulations Database prevails; external documents, prices, and specifications follow their original sources. The actual scope of Think BIG’s services depends on what both parties confirm.