I don’t think anyone would expect such a revolutionary and compute intensive system to be free - agreed it would probably make sense as an optional subscription, on a per-month or per-flight basis, to temporarily rent the compute space on Azure or whatever.
Martial said on the live stream yesterday that ATC changes were very hard and slow, as even minor changes required massive amounts of code change. And given MS’ investment in OpenAI it made me wonder if they should be at least be considering instead investing time in rebuilding towards a truly next gen and future proof system like this