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Alex + Ada, Vol. 1

Jonathan Luna, Sarah Vaughn

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Similar in characterization + relationships

These books are ranked using the characterization + relationships labels extracted for Alex + Ada, Vol. 1. Books rank higher when they are close on every selected axis.

Characterization labels used: lonely protagonist, depressed protagonist, awkward protagonist, caring protagonist, well-meaning protagonist, humanistic android, non-sentient companion, eccentric grandmother, supportive friends, secretive resistance members, android companion

Relationships labels used: human-AI romance, companionship, mentor-like guidance, family meddling, grandmother-grandson, power imbalance, caregiver role, friend group

This does not mean the books share the same plot, setting, quality, or difficulty. It means their characterization + relationships embeddings are close.

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Evolved

N.R. Walker · 2018

In a near-future Australia, a lonely professor buys a custom android companion—then discovers he may be becoming sentient.

Why this is here

Characterization labels: lonely protagonist · structured protagonist · quiet protagonist · brilliant protagonist · academia · philosophy professor · literature professor · OCD traits · technosexual · sentient android · adaptive being · curious android · witty android · protective lead · respectful lead · solitary protagonist

Relationships labels: human-android romance · caregiver dynamic · equal partnership · protective love · companionship · sexual dependency · friend support · ex-boyfriend catalyst · mentor-like intellectual bond

Semantic match: ranked by characterization + relationships

Distance: 0.1366

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Opening Moves

Cosimo Yap · 2016 · The Gam3

A rookie gamer enters a VR game tied to alien politics, where leveling up could decide Earth’s fate.

Why this is here

Characterization labels: inept protagonist · naive protagonist · overpowered protagonist · gamer protagonist · tech genius · AI-assisted hero · bumbling hero · underprepared newcomer · self-reliant growth

Relationships labels: human and AI · mentor and pupil · benefactor relationship · dependency · teamwork · trust · guidance · power imbalance · bossy AI · lack of romance

Semantic match: ranked by characterization + relationships

Distance: 0.1442

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Steel Beach

John Varley · 1992 · Eight Worlds

On a post-scarcity Moon colony, a jaded reporter probes rising suicides and a troubled ruling AI.

Why this is here

Characterization labels: reporter protagonist · jaded protagonist · suicidal protagonist · gender-switching protagonist · sentient AI character · quirky characters · nuanced characters · centenarian character

Relationships labels: human-AI relationship · community life · power imbalance · workplace · romantic relationships · family and parenthood · rivalry · dependency

Semantic match: ranked by characterization + relationships

Distance: 0.1462

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This Long Vigil

Rhett C. Bruno · 2015 · Children of Titan

A lone monitor aboard a generation ship nears the end of his service and must choose between duty, sleep, and freedom.

Why this is here

Characterization labels: lonely protagonist · human monitor · artificial intelligence · caregiver role · obedient system worker · rebellious arc · philosophical introspection

Relationships labels: human-AI bond · friendship · dependency · sole companionship · authority conflict

Semantic match: ranked by characterization + relationships

Distance: 0.1508

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Bearing Gifts

Sean Fenian · 2024 · The Stardock Trilogy

A retired engineer is chosen to operate an alien shipyard gifted to Earth, and must reshape humanity before a looming threat arrives.

Why this is here

Characterization labels: retired engineer · older protagonist · competent protagonist · idealistic protagonist · polymath hero · selfless hero · neurodivergent protagonist · benevolent AI · flat characters · likable MC

Relationships labels: human-alien contact · human-AI bond · mentor-like AI relation · romance subplot · team building · international cooperation · leader negotiation · power imbalance · chosen representative

Semantic match: ranked by characterization + relationships

Distance: 0.1539

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Reduce! Reuse! Recycle!

T.J. Klune · 2024

An android gets one last week of freedom before reprogramming and discovers life, friendship, and belonging.

Why this is here

Characterization labels: android protagonist · robot narrator · likable protagonist · innocent character · curious character · sentient machine · lonely character · worker · self-discovery arc · becoming · humanized machine · deserving of care

Relationships labels: found family · friendship · acceptance · community · connection · caregiving · belonging · queer community · human-robot bonds

Semantic match: ranked by characterization + relationships

Distance: 0.1580

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Kitty Cat Kill Sat: A Feline Space Adventure

Argus . · 2023

An immortal cat runs a battered space station, fighting crises, loneliness, and Earth’s collapse from orbit.

Why this is here

Characterization labels: snarky protagonist · lonely protagonist · immortal protagonist · selfless protagonist · catlike behavior · uplifted intelligence · fierce heroine · heroic protector · quirky narrator · resourceful protagonist · emotionally wounded protagonist · non-human protagonist · character-driven

Relationships labels: found family · friendship arc · loneliness · companionship · community building · protective bonds · human-animal bond · AI companionship · cooperation across species · caregiving

Semantic match: ranked by characterization + relationships

Distance: 0.1589

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The Iron Garden Sutra

A.D. Sui · 2026 · The Cosmic Wheel

A death monk and academics board an overgrown lost spaceship, where burial rites turn into a claustrophobic hunt.

Why this is here

Characterization labels: death monk · embedded AI · religious protagonist · introverted protagonist · pessimistic protagonist · traumatized protagonist · self-critical protagonist · academic team · engineer · researchers · security team · grumpy engineer · complex protagonist · flawed protagonist

Relationships labels: human-AI bond · codependency · companionship · enemies to lovers · slow burn romance · forbidden romance · found family · workplace antagonism · friendship · dependency · mentor-like bond · romantic subplot

Semantic match: ranked by characterization + relationships

Distance: 0.1616

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The Death I Gave Him

Em X. Liu · 2023

In a locked-down future lab, a grieving scientist’s son hunts his father’s killer with help from the lab’s AI.

Why this is here

Characterization labels: depressed protagonist · morally gray · obsessive · paranoid · damaged · unhinged · ruthless · ambiguous motives · unlikable characters · messy characters · female agency · AI character · endearing AI · mad scientist · scientist son · security chief · research intern · morally gray woman · complicated protagonist · suicidal ideation

Relationships labels: human AI bond · romantic AI relationship · friendship · mentor child bond · father son · family betrayal · ex relationship · sibling rivalry · love triangle · power struggle · obsessive attachment · dear companion

Semantic match: ranked by characterization + relationships

Distance: 0.1662

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We Have Always Been Here

Lena Nguyen · 2021

On a cut-off survey ship, a psychologist investigates crew madness while androids, secrets, and an icy world turn uncanny.

Why this is here

Characterization labels: misanthropic protagonist · psychologist protagonist · outsider protagonist · reluctant investigator · emotionally detached · socially awkward · android-friendly · neurodivergent-coded

Relationships labels: human-android bonds · caretaker relationship · mentor-mentee · crew mistrust · ostracism · spy suspicion · community alienation · family leverage

Semantic match: ranked by characterization + relationships

Distance: 0.1696

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Alex + Ada, Vol. 2

Jonathan Luna, Sarah Vaughn · 2015 · Alex + Ada

A sentient android and the man who freed her face growing feelings as anti-robot pressure tightens around them.

Why this is here

Characterization labels: sentient android · human protagonist · gentle protagonist · protective lead · curious android · naive discovery · emotionally guarded · supportive friends · supportive grandmother · robot friends

Relationships labels: forbidden love · human android romance · courtship · mutual attraction · relationship uncertainty · protective caregiving · friend group support · family tension · owner liberated

Semantic match: ranked by characterization + relationships

Distance: 0.1703

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Agency

William Gibson · 2020 · Jackpot

A beta tester and a future operator get entangled with a powerful AI while trying to avert a looming catastrophe.

Why this is here

Characterization labels: passive protagonist · outsider · beta tester · app whisperer · tech worker · AI character · sentient AI · enigmatic operator · corporate startup worker · middleman · observer · hacker-adjacent

Relationships labels: human-AI bond · mentor-like influence · corporate pursuit · ex-partner tension · intertimeline contact · handler relationship · power imbalance · loyalty conflict · protective alliance · dependency

Semantic match: ranked by characterization + relationships

Distance: 0.1713

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