https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-ai-character-chat-companion-2026-character-ai-replika-chai-janitor-talkie-polybuzz-crushon-pi-ai-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-ai-character-chat-companion-2026-character-ai-replika-chai-janitor-talkie-polybuzz-crushon-pi-ai-deep-dive.en In May 2026 the AI character chat and companion AI space has hardened into a sprawling shadow industry. Character.AI still hovers around 20M monthly users even after sending Noam Shazeer back to Google, while the October 2024 Florida teen suicide lawsuit becomes the first civil-liability bellwether. Replika partially reversed its February 2023 ERP block after community trauma, and Pi by Inflection became a B2B AI shop after Mustafa Suleyman left for Microsoft. Janitor AI, SpicyChat, and Crushon allow NSFW openly and run a proxy economy, while SillyTavern is the de facto self-host frontend. Korea has Wrtn Character and Scatter Lab Iruda, Japan has its own kyara-chat ecosystem. With the UK Online Safety Act and Florida SB 1308 closing in, this post walks 50+ services end to end. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-character-chatcompanion-aicharacter-aireplikachaijanitortalkiepolybuzzcrushonpi-aiai-dungeonenglish https://www.youngju.dev/blog/culture/2026-05-16-ai-character-chat-companion-2026-character-ai-replika-chai-janitor-talkie-polybuzz-crushon-pi-ai-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-ai-character-chat-companion-2026-character-ai-replika-chai-janitor-talkie-polybuzz-crushon-pi-ai-deep-dive.ja 2026年5月時点で、AIキャラクターチャットとコンパニオンAIは巨大な影の産業として定着した。Character.AIはNoam ShazeerをGoogleへ戻したあとも月間2,000万人規模を維持しているが、2024年10月のフロリダ10代自殺訴訟が初の民事責任の試金石になりつつある。Replikaは2023年2月のERP遮断騒動を経て一部復活し、PiはMustafa SuleymanがMicrosoftに移ったあとB2BのAI会社へ転身した。Janitor AI、SpicyChat、CrushonはNSFWを明示的に許容しプロキシ経済を運営、SillyTavernは事実上のセルフホスト・フロントエンドになった。韓国にはWrtn CharacterとScatter Labのイルダ、日本には独自のキャラチャット生態系がある。UK Online Safety Actとフロリダ州SB 1308が迫る中、50以上のサービスを一気通貫で整理する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-character-chatcompanion-aicharacter-aireplikachaijanitortalkiepolybuzzcrushonpi-aiai-dungeon日本語 https://www.youngju.dev/blog/culture/2026-05-16-ai-character-chat-companion-2026-character-ai-replika-chai-janitor-talkie-polybuzz-crushon-pi-ai-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-ai-character-chat-companion-2026-character-ai-replika-chai-janitor-talkie-polybuzz-crushon-pi-ai-deep-dive 2026년 5월 현재 AI 캐릭터 챗과 컴패니언 AI 시장은 거대한 그림자 산업으로 굳어졌다. Character.AI는 Noam Shazeer를 Google에 돌려보낸 뒤에도 월 2천만 명대 사용자를 유지하지만, 2024년 10월 플로리다 10대 자살 소송이 첫 형사·민사 책임 판례로 가는 중이다. Replika는 2023년 2월 ERP 차단으로 사용자 트라우마를 만든 뒤 부분 복원했고, Pi by Inflection은 Mustafa Suleyman이 Microsoft로 가면서 B2B AI 회사로 변신했다. Janitor AI, SpicyChat, Crushon은 NSFW를 허용하면서 프록시·자체 모델 전쟁을 벌이고, SillyTavern은 자체 호스팅 프론트엔드의 표준이 됐다. 한국은 뤼튼 캐릭터와 Scatter Lab 이루다, 일본은 키ャラ챗 생태계가 따로 존재한다. UK Online Safety Act와 미국 SB 1308이 다가오는 가운데 50여 개 서비스를 한 호흡에 정리한다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-character-chatcompanion-aicharacter-aireplikachaijanitortalkiepolybuzzcrushonpi-aiai-dungeon https://www.youngju.dev/blog/culture/2026-05-16-ai-mental-health-tools-2026-woebot-wysa-earkick-iris-tess-replika-koko-mindstrong-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-ai-mental-health-tools-2026-woebot-wysa-earkick-iris-tess-replika-koko-mindstrong-deep-dive.en The 2026 mental health crisis runs in parallel across the US, EU, Korea, and Japan. The US 988 Lifeline has entered its fourth year, Korea has held the top OECD suicide rate for 18 years, and youth suicide in Japan turned upward again starting in 2024. Against that backdrop, AI mental health tools exploded. Woebot targets postpartum depression as an FDA Breakthrough Device, but shut down its B2C app and pivoted to B2B in 2024. Wysa reached 50 countries with the NHS, and Earkick is a GPT-backed mood tracker for Gen Z growing fast. Replika abruptly cut its EROS mode in 2023 and partially restored it after user backlash. Character.AI was hit with a teen suicide lawsuit in 2024 and is under FTC investigation. The trend of using ChatGPT and Claude as "AI therapists" is a direct descendant of ELIZA (1966). This essay walks through those 50-plus tools and their risks in one breath. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-mental-healthwoebotwysaearkickreplikakokomindstrongheadspacecalmtalkspacecrisis-linedigital-therapeuticsenglish https://www.youngju.dev/blog/culture/2026-05-16-ai-mental-health-tools-2026-woebot-wysa-earkick-iris-tess-replika-koko-mindstrong-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-ai-mental-health-tools-2026-woebot-wysa-earkick-iris-tess-replika-koko-mindstrong-deep-dive.ja 2026年のメンタルヘルス危機は米国・EU・韓国・日本のどこでも同時並行で進んでいる。米国の988ライフラインは4年目に入り、韓国は自殺率OECD1位を18年間維持し、日本では若年層の自殺が2024年から再び増加に転じた。その間にAIメンタルヘルスツールが爆発的に広がった。WoebotはFDA Breakthrough Deviceとして産後うつを狙うが、B2C事業をたたみ2024年にB2Bへピボットした。WysaはNHSと共に50カ国へ展開し、EarkickはGen Z向けのGPTベース気分トラッカーとして急成長中。Replikaは2023年にEROSモードを突然停止し、ユーザーの反発を受けて一部復活させた。Character.AIは2024年の10代自殺訴訟に巻き込まれ、FTCの調査対象となった。ChatGPTやClaudeを「AIセラピスト」として使う流れは、ELIZA(1966)の直系の子孫である。本稿はその50を超えるツールと危険を一息に整理する。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-mental-healthwoebotwysaearkickreplikakokomindstrongheadspacecalmtalkspacecrisis-linedigital-therapeutics日本語 https://www.youngju.dev/blog/culture/2026-05-16-ai-mental-health-tools-2026-woebot-wysa-earkick-iris-tess-replika-koko-mindstrong-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-ai-mental-health-tools-2026-woebot-wysa-earkick-iris-tess-replika-koko-mindstrong-deep-dive 2026년 정신 건강 위기는 미국·EU·한국·일본 어디서나 동시에 진행 중이다. 미국은 988 라이프라인이 출범 4년 차에 들어섰고, 한국은 자살률 OECD 1위 자리를 18년째 지키며, 일본은 청년 자살이 2024년부터 다시 증가세로 돌아섰다. 그 사이에 AI 정신 건강 도구가 폭발했다. Woebot은 FDA Breakthrough Device로 출산 후 우울증을 노리지만 B2C 사업을 접고 2024년 B2B로 피벗했다. Wysa는 NHS와 함께 50개국에 진출했고, Earkick은 Gen Z용 GPT 기반 무드 트래커로 빠르게 성장 중이다. Replika는 2023년 EROS 모드를 갑자기 끊었다가 사용자 반발로 부분 복원했다. Character.AI는 2024년 10대 자살 소송에 휘말렸고, FTC가 조사에 들어갔다. ChatGPT와 Claude를 "AI 치료사"로 쓰는 트렌드는 ELIZA(1966)의 직계 후손이다. 이 글은 그 50여 개 도구와 위험을 한 호흡에 정리한다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) ai-mental-healthwoebotwysaearkickreplikakokomindstrongheadspacecalmtalkspacecrisis-linedigital-therapeutics