Apparently Meta used the term before.

Also, as much as I despise Trump, you know what? Given the jagged shape of LLM capabilities and what they do achieve in some areas and their superhuman speed, compared with the abilities of most of their users, the term superintelligence is not that far off- maybe just a few months ahead of time. E.g., from my perspective, the current mathematical abilities of LLMs are "super"- I'd hardly ever come in touch with an equivalently capable human, not to mention having one completely available 24/7. Same for general knowledge and several other domains.