“Open source” is printed on the download button — what you almost always get is “open weights”. What you may do with it is decided by the licence, and in 2026 that licence reached the mid-sized business: rights lapse above 20 million in revenue, not 700 million users. Some clauses shut EU companies out entirely — and don’t even appear in the licence file.
“The open models have caught up” is true — and misleading. The best open model trails the world’s best by only 3 points, but it has 2.8 trillion parameters and runs only in the data centre. What fits on your graphics card lags by around 23 points. “Open” is not “local” — and a computed-down model doesn’t hiss, it lies with confidence. Running it costs more than the card.
“Local AI is cheaper” is the first argument to fall once you do the math. What decides is not the token price but how many tokens a task burns — and what the finished build costs. At realistic office use your own card lands at 27.70 € per million tokens, and even under full load (0.51 €) it stays pricier than a cheap cloud model (0.26 €), at lower quality. Price is no reason to go local.