| tool name | license | min RAM GPU | offline capable | maturity | source URL |
|---|---|---|---|---|---|
| PrivateGPT | Apache-2.0 | 8GB RAM, GPU optional | yes | active | source |
| LangChain | MIT | depends on backend model | yes (with local models) | mature, very active | source |
| LlamaIndex | MIT | depends on backend model | yes (with local models) | mature, very active | source |
| Haystack | Apache-2.0 | depends on backend model | yes (with local models) | mature, active | source |