The Periodic Table of AI
56 universal neuron elements. 8 fundamental types. Every language model we tested contains all of them.
Bo Boolean Neurons encoding truth values, polarity, and binary distinctions. 1
Affirmation
Neurons encoding positive confirmation and agreement signals.
2 Negation
Neurons encoding denial, refusal, and negative polarity.
3 Polarity
Neurons discriminating positive vs. negative sentiment.
4 Presence
Neurons detecting existence and presence of entities.
5 Binary
Neurons encoding yes/no, on/off, and binary choices.
6 Comparison
Neurons comparing two states and selecting a winner.
7 General
Boolean neurons not fitting a specific sub-type.
Nu Number Neurons encoding quantities, magnitudes, and numerical relationships. 8
Cardinal
Neurons for counting whole numbers and absolute quantities.
9 Ordinal
Neurons encoding rank, position, and order (first, third).
10 Magnitude
Neurons encoding scale — large, small, vast, tiny.
11 Fraction
Neurons for ratios, percentages, and partial quantities.
12 Money
Neurons specialized for currency, prices, and financial values.
13 Statistic
Neurons encoding statistical measures and probabilities.
14 General
Numerical neurons not fitting a specific sub-type.
Sy Symbol Neurons encoding linguistic tokens, code, and structured syntax. 15
Lexical
Neurons for words as abstract symbolic units.
16 Markup
Neurons specialized in HTML, XML, and formatting syntax.
17 Code
Neurons encoding programming language constructs.
18 Morphology
Neurons for word structure — prefixes, suffixes, stems.
19 Letter
Neurons encoding individual characters and alphabets.
20 Operator
Neurons for logical and mathematical operators (+, =, &&).
21 General
Symbolic neurons not fitting a specific sub-type.
Id Identity Neurons encoding named entities — people, places, organizations. 22
Person
Neurons specialized in human names and personal identities.
23 Organization
Neurons for companies, institutions, and collective entities.
24 Place
Neurons encoding geographic locations and spatial identities.
25 Product
Neurons for branded items, manufactured goods, and products.
26 Role
Neurons encoding titles, positions, and social roles.
27 Work
Neurons for creative works — books, films, artworks.
28 General
Identity neurons not fitting a specific sub-type.
Sp Space Neurons encoding spatial relationships, positions, and geometry. 29
Position
Neurons for absolute positions — here, there, center, edge.
30 Direction
Neurons encoding movement direction — up, down, left, right.
31 Region
Neurons for areas, zones, and bounded spatial regions.
32 Boundary
Neurons encoding limits, edges, and spatial boundaries.
33 Layout
Neurons for structural arrangement — rows, columns, grids.
34 Nesting
Neurons encoding containment and hierarchical spatial structure.
35 General
Spatial neurons not fitting a specific sub-type.
Ti Time Neurons encoding temporal relationships, dates, and sequences. 36
Date
Neurons for specific dates, years, and calendar references.
37 Duration
Neurons encoding periods, spans, and lengths of time.
38 Sequence
Neurons for ordering events — before, after, then, next.
39 Era
Neurons encoding historical periods and epochs.
40 Event
Neurons for time-bounded occurrences and events.
41 Frequency
Neurons encoding how often something happens.
42 General
Temporal neurons not fitting a specific sub-type.
Re Relation Neurons encoding logical and semantic relationships between concepts. 43
Causal
Neurons for cause-and-effect links — because, therefore.
44 Contrast
Neurons encoding opposition — but, however, whereas.
45 Conjunction
Neurons for additive linking — and, also, furthermore.
46 Reference
Neurons for pronoun resolution and anaphoric reference.
47 PartWhole
Neurons encoding part-of and membership relationships.
48 Analogy
Neurons for similarity and analogical reasoning.
49 General
Relational neurons not fitting a specific sub-type.
En Entropy Neurons encoding uncertainty, ambiguity, and information noise. 50
Probabilistic
Neurons for likelihood and probability estimates.
51 Ambiguity
Neurons encoding semantic ambiguity and multiple valid meanings.
52 Variability
Neurons for variation and inconsistency across contexts.
53 Noise
Neurons encoding irrelevant or distracting signal.
54 Approximation
Neurons for rounding, estimation, and inexact quantities.
55 Confidence
Neurons encoding certainty level and epistemic confidence.
56 General
Entropy neurons not fitting a specific sub-type.
All 56 Elements
Each element represents a distinct category of neuron function found universally across AI language models. Click any element to read its full description.
1 Bo
Affirmation Neurons encoding positive confirmation and agreement signals.
2 Bo Negation Neurons encoding denial, refusal, and negative polarity.
3 Bo Polarity Neurons discriminating positive vs. negative sentiment.
4 Bo Presence Neurons detecting existence and presence of entities.
5 Bo Binary Neurons encoding yes/no, on/off, and binary choices.
6 Bo Comparison Neurons comparing two states and selecting a winner.
7 Bo General Boolean neurons not fitting a specific sub-type.
8 Nu Cardinal Neurons for counting whole numbers and absolute quantities.
9 Nu Ordinal Neurons encoding rank, position, and order (first, third).
10 Nu Magnitude Neurons encoding scale — large, small, vast, tiny.
11 Nu Fraction Neurons for ratios, percentages, and partial quantities.
12 Nu Money Neurons specialized for currency, prices, and financial values.
13 Nu Statistic Neurons encoding statistical measures and probabilities.
14 Nu General Numerical neurons not fitting a specific sub-type.
15 Sy Lexical Neurons for words as abstract symbolic units.
16 Sy Markup Neurons specialized in HTML, XML, and formatting syntax.
17 Sy Code Neurons encoding programming language constructs.
18 Sy Morphology Neurons for word structure — prefixes, suffixes, stems.
19 Sy Letter Neurons encoding individual characters and alphabets.
20 Sy Operator Neurons for logical and mathematical operators (+, =, &&).
21 Sy General Symbolic neurons not fitting a specific sub-type.
22 Id Person Neurons specialized in human names and personal identities.
23 Id Organization Neurons for companies, institutions, and collective entities.
24 Id Place Neurons encoding geographic locations and spatial identities.
25 Id Product Neurons for branded items, manufactured goods, and products.
26 Id Role Neurons encoding titles, positions, and social roles.
27 Id Work Neurons for creative works — books, films, artworks.
28 Id General Identity neurons not fitting a specific sub-type.
29 Sp Position Neurons for absolute positions — here, there, center, edge.
30 Sp Direction Neurons encoding movement direction — up, down, left, right.
31 Sp Region Neurons for areas, zones, and bounded spatial regions.
32 Sp Boundary Neurons encoding limits, edges, and spatial boundaries.
33 Sp Layout Neurons for structural arrangement — rows, columns, grids.
34 Sp Nesting Neurons encoding containment and hierarchical spatial structure.
35 Sp General Spatial neurons not fitting a specific sub-type.
36 Ti Date Neurons for specific dates, years, and calendar references.
37 Ti Duration Neurons encoding periods, spans, and lengths of time.
38 Ti Sequence Neurons for ordering events — before, after, then, next.
39 Ti Era Neurons encoding historical periods and epochs.
40 Ti Event Neurons for time-bounded occurrences and events.
41 Ti Frequency Neurons encoding how often something happens.
42 Ti General Temporal neurons not fitting a specific sub-type.
43 Re Causal Neurons for cause-and-effect links — because, therefore.
44 Re Contrast Neurons encoding opposition — but, however, whereas.
45 Re Conjunction Neurons for additive linking — and, also, furthermore.
46 Re Reference Neurons for pronoun resolution and anaphoric reference.
47 Re PartWhole Neurons encoding part-of and membership relationships.
48 Re Analogy Neurons for similarity and analogical reasoning.
49 Re General Relational neurons not fitting a specific sub-type.
50 En Probabilistic Neurons for likelihood and probability estimates.
51 En Ambiguity Neurons encoding semantic ambiguity and multiple valid meanings.
52 En Variability Neurons for variation and inconsistency across contexts.
53 En Noise Neurons encoding irrelevant or distracting signal.
54 En Approximation Neurons for rounding, estimation, and inexact quantities.
55 En Confidence Neurons encoding certainty level and epistemic confidence.
56 En General Entropy neurons not fitting a specific sub-type.