Unicorns also don't exist, but we don't change the definition to include horses.

The first level argument is that old horse, burden of proof.

An open source model does exist now [1] and is multilingual. Previous discussion [2].

[1] https://ethz.ch/en/news-and-events/eth-news/news/2025/07/a-l...

[2] https://news.ycombinator.com/item?id=44535637

It does, but does it matter? Even if every software released in 2025 was proprietary, doesn't make their published binaries "open source" because no other software could be classified as "open source".

We name things based on what they are, not based on the lack of other things.

There aren’t many but they do exist. OLMo for example.

Olmo by AllenAI and Pythia by EleutherAI.

Apertus by EPFL and ETH Zürich.

I believe it does. OLMO.