They don't.
I just checked: there's exactly one user that has contributed (only typo fixes) to both ollama and llama.cpp according to github's contributors graphs.
I just checked: there's exactly one user that has contributed (only typo fixes) to both ollama and llama.cpp according to github's contributors graphs.
> As you pointed out, we carry patches, although in general we try to upstream those.
— https://github.com/ollama/ollama/issues/2534#issuecomment-19...
So I followed the link to his profile and saw that he has opened some non-documentation pull requests for llama.cpp:
https://github.com/ggerganov/llama.cpp/pull/5244
https://github.com/ggerganov/llama.cpp/pull/5576
I didn’t dig any deeper, but it took me less than thirty seconds to find those so I expect there are more.
As I said, I only compared the contributors graphs [0] and checked for overlaps. But those apparently only go back about year and only list at most 100 contributors ranked by number of commits.
[0]: https://github.com/ollama/ollama/graphs/contributors and https://github.com/ggerganov/llama.cpp/graphs/contributors