Before it
The best open weights carried non-commercial licences.
The problem
Businesses could not build on LLaMA, and the alternatives were weaker.
What it introduced
A competitive 40B model trained on filtered web data, relicensed to Apache 2.0 within a week of release.
Why it matters
It briefly led the open leaderboards and proved permissive licensing at scale was possible before Llama 2 followed.
What modern models inherit
Permissive licensing as a competitive lever.
What came next
Llama 2's commercial licence, then Mistral's Apache releases.