Open-Source LLM Licenses & Commercial API Resale

When you build a product around an open-source large language model, the license on that model determines what you can legally do with it — including whether you can resell access to it as an API. This article explains the key open-source licenses used for LLMs, what “commercial use” actually means in each case, and how that applies when you’re paying per-token to a provider like TokenShop.

What “Open Source” Means for LLMs

Open-source software licenses grant you the right to use, modify, and distribute the code (or, in the case of LLMs, the model weights). But not all open-source licenses are equal. The most common ones you’ll encounter in the LLM world are:

• MIT License – Very permissive. You can do almost anything, including selling access to the model as a service.
• Apache 2.0 License – Also permissive, but adds an explicit patent grant and requires you to preserve notices.
• Custom licenses – Some model creators write their own terms. For example, Meta’s Llama 2 license allows commercial use but has an “acceptable use policy” and a monthly-active-user clause for larger deployments.

The critical question for API resale: Does the license allow you to charge others for access to the model without sharing your own source code?

MIT License: The Simplest Path for Resale

The MIT license is short and clear. It grants permission to “use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software.” That “sell copies” clause explicitly covers commercial API resale.

Models like Qwen3 32B (available on TokenShop at $0.30/M input tokens) are released under permissive terms. Alibaba’s Qwen3 uses an Apache 2.0 license, which is similarly permissive. You can:

• Use the model in your own application.
• Offer it as a hosted API to paying customers.
• Modify the model (fine-tune it) and still resell it.

There is no requirement to open-source your own code or pay royalties. The only obligation is to include the original copyright notice in any distribution.

Apache 2.0 License: Permissive with a Patent Safety Net

Apache 2.0 is slightly more complex than MIT, but still fully allows commercial use and API resale. It includes:

• An explicit grant of patent rights from contributors to users.
• A requirement to retain attribution notices.
• A termination clause if you sue someone for patent infringement related to the licensed work.

Models like DeepSeek V3.2 (available at $0.40/M input tokens on TokenShop) use Apache 2.0. This means you can resell API access without any additional licensing fees. The patent grant is especially valuable if you’re building a product that might later face patent claims — it gives you a defense.

Practical note: If you redistribute the model weights directly (not just serve them via API), you must include a copy of the Apache 2.0 license and the original copyright notice. But when you’re using a provider like TokenShop, the provider handles the model hosting and licensing compliance. You only need to worry about your own application’s license.

What About Models with Custom Licenses?

Not all open-source LLMs use standard licenses. Some notable examples:

• Llama 2 / Llama 3 – Meta’s custom license allows commercial use but restricts usage if your product has over 700 million monthly active users. It also includes an acceptable use policy that prohibits certain high-risk applications.
• Mistral models – Mistral AI uses Apache 2.0 for most models, but some earlier versions had custom terms.
• GLM-4.6 (available on TokenShop at $0.80/M input tokens) – GLM models from Zhipu AI use a custom license that permits commercial use but may have specific attribution requirements.

Always check the model card or the license file on Hugging Face before building a commercial product. If the license says “research only” or “non-commercial,” you cannot resell API access without violating terms.

How TokenShop Handles License Compliance

When you use a service like TokenShop, you’re not distributing the model weights yourself. You’re paying for inference time. This shifts the licensing burden:

• TokenShop must have the right to serve the model commercially.
• You, as the API consumer, only need to ensure your application doesn’t violate the model’s acceptable use policy (if any).

TokenShop’s pricing page lists models with their context windows and per-token costs. The models available — Qwen3 32B, DeepSeek V3.2, and GLM-4.6 — are all licensed for commercial use. The provider handles the upstream license compliance.

For developers, this means you can focus on building your product without worrying about whether you’re accidentally violating a model license by serving it. You pay per token, the provider manages the legal side of model hosting.

Practical Steps for Choosing a Model for Resale

If you’re building a product that resells LLM API access (or builds on top of one), here’s a quick checklist:

1. Check the model’s license – Look for “MIT,” “Apache 2.0,” or a custom license that explicitly allows commercial use and API serving.
2. Check acceptable use policies – Even permissive licenses may prohibit certain use cases (e.g., generating malware, harassment).
3. Consider attribution requirements – MIT and Apache 2.0 require you to retain copyright notices if you redistribute the model. For API usage, this is usually handled by the provider.
4. Evaluate cost vs. capability – A model like DeepSeek V3.2 ($0.40/M input) may be cheaper than GLM-4.6 ($0.80/M input), but GLM-4.6 offers a larger 202K context window. Your use case determines the trade-off.
5. Test with the provider’s trial credit – TokenShop gives $0.50 trial credit on registration. Use it to verify the model’s output quality and latency before committing.

If you’re unsure about a specific model’s license, the TokenShop documentation may include notes on licensing for each model. When in doubt, consult a lawyer — but for MIT and Apache 2.0 models, the answer is almost always “yes, you can resell.”

Conclusion

MIT and Apache 2.0 licenses give you clear, permissive rights to use open-source LLMs commercially, including reselling API access. Custom licenses vary, but models like Qwen3 32B, DeepSeek V3.2, and GLM-4.6 are all available under terms that allow commercial use. When you use a provider like TokenShop, the hosting provider handles distribution compliance, so you can focus on building your product. Always check the license file on the model’s official repository, but for standard permissive licenses, the answer is straightforward: you can resell.