Ello
Y Combinator 2020 · Active Education ello.com
Building the world's first 1:1 AI teacher.
Y Combinator's description, shown to identify the company. We rate the name, not the business.
Formerly Trustle
- Evocativity EVOC : yellow
- Hello-like greeting hints at a friendly teaching companion
- Brevity BREV : green
- 4 letters, 2 syllables. Up to seven letters is green, eight at two syllables too; up to ten yellow, eleven or more red.
- Greppability GREP : yellow
- Found inside 232 other dictionary words.
- Googlability GOOG : red
- Famous different social network and greeting form compete
- Pronounceability PRON : green
- Regular el and o sounds
- Spellability SPEL : red
- Dropped H and double L are not recoverable by ear
- Verbability VERB : red
- No natural learning-use action
- Nominology
- 57
- All seven dimensions and .com ownership, weighted as set out on Methodology.
- Fluency
- 100
- Brevity and pronounceability only: the subset with published outcome evidence behind it.
- PG grade
- 2 / 4
- Graham's own four-step ladder.
- Exact .com
- Owned
- Shape
- invented
- Length
- 4 chars, 2 syllables
- Distinctiveness
- suggestive
Watkins SCRATCH flags
- Spelling-challenged
Rubric version 2026.10.20-1, judged by gpt-6.1-sol (agent).
This scores the name only. See Methodology.
These judged dimensions came from an AI agent working through the judging queue in a chat, on the same rubric the scoring pipeline sends. The agent passed the calibration exam before its work was accepted, and each batch it judged hid two names with known answers as a check. The model is named as the agent reported it.