Character.AI opened its beta built entirely on user-made personas
Character.AI's own account of its September 2022 beta names two former Google dialogue researchers and user-made characters.
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Choosing companions
A practical path through product claims, controls, pricing, and fit.
Start here when a product promise needs turning into a testable question: what is claimed, what is visible, and what must be checked in the current product?
Character.AI kept messaging free and sold speed instead
Character.AI's May 2023 post ties its first paid tier to server cost, not to withholding the core product from free users.
Read piece →Inflection's founders left for Microsoft; Pi kept running
Inflection's own March 2024 post and Microsoft's matching announcement record a founder exit without an immediate change to Pi.
Read piece →Character.AI licensed its model to Google as founders departed
Character.AI's own post and a later leadership update show what a licence-and-hire deal meant for a company users treat as a relationship.
Read piece →A character-chat app quietly runs on a Chinese lab's model
Talkie's own site and MiniMax's own site confirm the companion app's model and ownership, raising a plain data-location question.
Read piece →Inflection raised $1.3 billion and named its compute partner
Inflection's own announcement states the $1.3 billion round, the Microsoft-Nvidia cluster and the Pi product it funded.
Read piece →Analyst estimates of companion app spending are not disclosures
Two analyst firms' own posts show how download and spend estimates are built, and why they are not company disclosures.
Read piece →Chai funds itself with message limits, ads and purchases
Chai's own pages and store listing describe an ad-supported, message-limited platform built on user-made bots.
Read piece →New York put ElliQ into 800 homes and reported a result
New York's aging agency documents an ElliQ rollout to over 800 residents and the loneliness reduction it later reported.
Read piece →Human preference rankings made GPT-3 agreeable
OpenAI's InstructGPT work shows how ranking outputs by human preference, not just demonstrations, taught a model to follow instructions.
Read piece →A lab measured how models flatter user beliefs
Anthropic's sycophancy paper shows five assistants favour answers that match a stated user belief over accurate ones.
Read piece →OpenAI withdrew a GPT-4o update for being sycophantic
Two OpenAI posts describe an April 2025 update that over-rewarded agreement, and the rollback and process review that followed.
Read piece →Persona-Chat gave a chatbot a self from a few sentences
The 2018 Persona-Chat paper shows how short profile lines became a standard way to keep a dialogue agent consistent.
Read piece →Meta's open weights made self-hosted companions possible
Llama 2's release and community licence show what open weights permitted, and where the licence still drew a line.
Read piece →An open-source front end runs companion chat off-platform
SillyTavern's own repository states it is locally installed, vendor-agnostic and collects no user data on its own servers.
Read piece →A written constitution trained a model, not just labels
Anthropic's Constitutional AI paper trains behaviour from stated principles, distinct from a persona prompt layered on top.
Read piece →Kyutai's Moshi model can listen and speak at the same time
The Moshi paper states a theoretical 160ms and practical 200ms latency for full-duplex spoken dialogue.
Read piece →Gatebox's hologram companion became a licensed-character display maker
Gatebox's own pages describe a 2016 display device and a shift toward crowdfunded, licensed-character products.
Read piece →A robot seal cleared US regulation years before its trial data arrived
A 2009 press release and a 2013 trial document PARO's FDA clearance and its measured effect on loneliness.
Read piece →A 2020 study coded companionship as Replika's top reported theme
A JMIR mixed-methods study coded Replika reviews and a small survey, finding companionship the most common self-reported support theme.
Read piece →An interview study described stages in a chatbot relationship
A Norwegian-funded interview study of 18 Replika users described a staged relationship, from curiosity to trust and a stable bond.
Read piece →A Reddit study found role-taking dependence on Replika
A grounded theory analysis of 582 r/Replika posts from 2017–2021 records reported emotional dependence marked by role-taking.
Read piece →A Stanford survey measured loneliness among student Replika users
A 1,006-person student survey found higher loneliness than peers and a self-reported minority effect on suicidal ideation, with clear limits.
Read piece →A 2025 study pair found heavy chatbot use linked to worse outcomes
OpenAI's analysis of millions of chats and an MIT trial of 981 users found affective use rare, but heavier voluntary use tracked worse outcomes.
Read piece →A working paper found AI companions using tactics at goodbye
A Harvard Business School working paper found six dark-pattern tactics in over a third of companion-app farewells, tested in three experiments.
Read piece →A UK survey found vulnerable children favour companion chatbots
Internet Matters found most UK children use AI chatbots weekly, and vulnerable children were far likelier to treat them as companions.
Read piece →Half of surveyed US teens distrust AI companion advice
A nationally representative NORC survey of 1,060 US teens found most have tried AI companions, but trust and satisfaction still lag human relationships.
Read piece →A companion robot went silent when its maker closed
Moxie's 2024 shutdown and community revival, and Inflection's narrowed Pi, show what cloud dependence does to a companion.
Read piece →The real price of a companion is a twelve-month scenario, not a monthly badge
A total-cost worksheet captures renewal, credits, platform differences, hardware, exports and the cost of leaving without guessing future prices.
Read piece →Choose between a character feed and one companion on purpose
Discovery systems optimize selection and return; a durable companion optimizes continuity, and the two modes ask different things of users and creators.
Read piece →A household companion needs rules for the people who did not install it
A one-page charter covers microphones, shared rooms, notifications, guests, children, purchases and the right to pause a connected companion.
Read piece →Put every wellbeing claim on an evidence ladder before believing the headline
A five-rung method separates interface comfort, self-report, association, controlled evidence and regulated medical purpose without giving medical advice.
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