
Proton released an "AI" (Lumo) that they market as open source. About that... with zero openness features checked it is the least open "open" model ever to arrive in the European OS AI index
Compare Lumo, Deepseek and OLMo: https://osai-index.eu/compare?models=OLMo,deepseek-v3,lumo
Until Proton tells us more about the base LLM and other aspects of this system, it is officially the least open LLM that is marketed as "open source"

