Human names › R
Rio
A human name. Not yet an agent name, as far as the registry knows.
Human name1 syllable1 token
Costs 1 token on GPT; Claude pending. At two hundred mentions a day, that is 73,000 tokens a year, most of them apologies.
Recorded as
Boys
In 2025
#532 for boys
Peak
2024, #517
Since 1880
7,812 babies
On licences
339 dogs in New York
What the numbers say
Rio was given to 563 boys in 2025, ranking 532nd for the year. It peaked in 2024, when it ranked 517th and went to 593 babies. It has appeared in 64 of the 146 years on record. It has climbed 242 places since 2020. It is also on 339 dog licences in New York City, ranked 393rd among dogs there, and on 26 in Seattle.
Siblings from the same year
Names that peaked alongside Rio, for a fleet with a birth year.
Villain probability, by sound
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Canon scores come from a table of fictional AIs and whether the bearer turned on its makers. Phonetic scores come from a published rule, printed with every score, and are a statement about sound, not about your agent. How the sound is scored.
On an agent
There is no agent tradition around Rio yet. The registry has 0 bearers. Familiar without being everywhere. Nobody at standup will ask you to spell it.
Sources
Our editors write full entries for names with an agent history. This one has the figures.
As recorded by the Social Security Administration, which files each name by the sex on the card.