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Original · left

Phi (letter)

First in use: ancient / pre-modern
Duplicate · right

Phi (language model)

First in use: c. 2023

Phi / Phi (letter) / Phi (language model)

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Canonical todayMeasuring…
Status—
Duplicate share · 12 mo—
Last crossover—
Colour keyGrey · original meaningGreen · duplicate meaningAmber · contested (40–60%)How colours work

Greek letter vs. Microsoft's small models.

Which meaning of Phi is the original, and which one is the duplicate riding on its name? Phi (letter) came first (ancient / pre-modern). Phi (language model) arrived in 2023. The data below shows which one owns the word now.

Wikipedia pageviews since 2015

Phi (letter)Phi (language model)
English Wikipedia pageviews since July 2015 load here.

Duplicate's share of attention

Green line = duplicate's % · above 60 it owns the word · below 40 the original does

Share-of-attention line loads here.

The case for each meaning

Sourced definitions, usage stats and quotes

Original · ancient / pre-modern

Phi (letter)

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12-mo pageviews—
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Duplicate · c. 2023

Phi (language model)

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More duplicated terms

AI & machine learning