Llama 2
Open source large language modelFree for research and commercial use
Highlights
What you can do with it
- Run local or self hosted text generation
- Fine tune the model for a specific task or domain
- Build a product on a permissive base model
How to use it
- 1 Get the model from the official release page
- 2 Read the licence and confirm your use is allowed
- 3 Set up hardware or a hosting environment
- 4 Load the weights, run inference, and fine tune if needed
Who it is for
Pros
- No per token cost once you host it yourself
- Commercial use allowed under the licence
- Wide community and tooling support
Limitations
- You carry the cost of compute, storage, and operations
- The licence has conditions that must be read before use
- Hosting a large model needs real hardware or cloud budget
What Llama 2 is
Llama 2 is an open source large language model. It is presented as a next generation model with strong language generation ability, developed and continually refined through testing with external partners and internal teams with a focus on safety and performance. The weights are released for research and commercial use under the model licence, which means you can run it yourself, fine tune it, and build products on top of it without paying a per token fee. It supports a wide range of use cases, which is why it became a common base for experiments and for teams that needed control over their own inference.
What you can do with it
- Run text generation locally or on your own infrastructure.
- Fine tune the model on data specific to your task or domain.
- Build applications on an openly licensed base model.
- Keep data inside your own environment for privacy reasons.
Who it is for
- Researchers studying language model behaviour and safety.
- Developers who want open weights rather than an API.
- Teams that need self hosting for data or compliance reasons.
- Organisations comparing open and closed models on their own tasks.
What to watch out for
Free to use does not mean free to run. You pay for compute, storage, and the engineering time to serve the model, and a large model needs serious hardware or a cloud budget to be practical. The licence has conditions, and commercial use is permitted within those terms, so read the actual licence text rather than relying on a summary. Model behaviour is not guaranteed for any specific task, so evaluation on your own data is essential before you ship. Finally, hosting and maintaining a model is ongoing work, not a one off download.
FAQ
Is Llama 2 free?
Yes, it is offered free for research and commercial use within the terms of its licence.
Can I use it commercially?
Commercial use is described as permitted. Read the licence text for the exact conditions.
What is it good for?
A wide range of use cases, from text generation and assistants to fine tuned domain applications.
Why it is free
What the official page says： 免费
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.
