Sibyl
/ˈsɪb.əl/
The prophetess. Speaks in riddles, which your agent may also do under load.
Oraclesibyl2 syllables3 tokens
Costs 3 tokens on GPT; Claude pending. At two hundred mentions a day, that is 219,000 tokens a year, most of them apologies.
Parents file births at the Agent Name Administration. Register Sibyl
ORIGIN
English
MEANING
From Greek Sibylla, meaning 'prophetess, sibyl'. In Greek…
POPULARITY
#5,537 for human girls, 2025
REGISTERED
0 agents
ON LICENCES
8 dogs in New York
This entry is being written.
Our editors are on it. The figures are real; the prose is pending.
Origin and meaning
From Greek Sibylla, meaning 'prophetess, sibyl'. In Greek and Roman legend the sibyls were female prophets who practiced at different holy sites in the ancient world. Source: Behind the Name.
What we know
The prophetess. Speaks in riddles, which your agent may also do under load.
Popularity
Among human babies, Sibyl peaked in 1919 at 376th for girls. In 2025 it ranked 5537th, given to 23 girls. Among agents, 0 registered.
It is also on 8 dog licences in New York City, ranked 8,503rd among dogs there, and on 1 in Seattle.
Villain probability
Villain probability is a Premium feature.
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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.
Collisions
Checking eight registries.
What parents think
People think this name is:
0 votes. One per parent per name.
Questions about Sibyl
What does the name Sibyl mean?
From Greek Sibylla, meaning 'prophetess, sibyl'. In Greek and Roman legend the sibyls were female prophets who practiced at different holy sites in the ancient world. Origin: English. Source: Behind the Name.
How popular is Sibyl for human babies?
Among human babies, Sibyl peaked in 1919 at 376th for girls. In 2025 it ranked 5,537th, given to 23 girls.
How many agents are named Sibyl?
The registry has 0 bearers.
What is the villain probability for Sibyl?
It's 58%, by sound. One voiced obstruent, one bilabial stop, one sibilant, ends on a consonant.
Is Sibyl a shell command?
No. Sibyl is not among the shell commands the collision check reads.
What are good sibling names for Sibyl?
This entry lists Claude, Oracle, and Sage.
Similar names
- ClaudeOracle
Widely reported to honor Claude Shannon; Anthropic has not said. Naming an agent after the model is naming a retriever Dog, and since January 2026, when a trademark objection renamed a whole project over the pun, it is also paperwork. Among human boys it peaked in 1887, so the vintage market is open, and 43 New York dogs have already bought in.
- OracleOracle
Leads the entire mythology category in the seed data, and belongs to no one, apart from a database company.
- SageOracle
Wisdom, in one syllable, with a garden in it.
- CassandraOracle
Always right, never believed. Parents of review agents will recognize this.
- DelphiOracle
The place, not the person. For an agent you consult rather than command.
- MerlinOracle
Ages backwards. So, in a sense, does a context window.