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14,448 startups · 29 programs

Char

Active · The AI notepad that knows and works for you

WebsiteYC profile

Why it ranks

How the rank works
7signal of 100 · rising 5
  • went through YCProgram · this site+4
  • team of 3Team size · YC's directory+3.1

A sum of public facts, not a judgement and not investment advice.

Competitors

AIOpenbenchmarksShared: agent pickYC F24San FranciscoStartup →
Companies closest to Char
Company
OpenbenchmarksShared: agent pickYC F24ActiveAI

Adjacent

AIGranolaShared: notepadAI Grant Batch 4Startup →AIZuniShared: ai assistant, productivity, workYC S24LondonStartup →AI100xShared: ai assistant, agent, productivityYC S22BengaluruStartup →AISpinach AIShared: ai assistant, productivity, agentYC W22NashvilleStartup →OtherInactiveNilesShared: productivity, workYC W17San FranciscoStartup →
Companies next to Char
Company
GranolaShared: notepadAI Grant Batch 4Not statedAI
ZuniShared: ai assistant, productivity, workYC S24ActiveAI
100xShared: ai assistant, agent, productivityYC S22ActiveAI
Spinach AIShared: ai assistant, productivity, agentYC W22ActiveAI
NilesShared: productivity, workYC W17InactiveOther

Also from S25 in AI

All of S25
AIEpicenterChatGPT's memory feature in an open, portable formatYC S25San FranciscoStartup →AISlashyCursor for EmailYC S25San FranciscoStartup →AIBlueAI rebuilt coding. We’re rebuilding the phoneYC S25San FranciscoStartup →AICactus ComputeAutomation Foundation Models For Tiny DevicesYC S25San FranciscoStartup →AICLODOPlanet-scale people discovery.YC S25San FranciscoStartup →AIDoeThe boring stuff, handled. Everything else, supercharged.YC S25San FranciscoStartup →
Company
EpicenterChatGPT's memory feature in an open, portable formatActiveAI, Devtools
SlashyCursor for Emailteam of 3ActiveAI
BlueAI rebuilt coding. We’re rebuilding the phoneteam of 7hiringActiveAI
Cactus ComputeAutomation Foundation Models For Tiny Devicesteam of 8ActiveAI, Devtools
CLODOPlanet-scale people discovery.team of 2ActiveAI
DoeThe boring stuff, handled. Everything else, supercharged.team of 2ActiveAI, Data

Founders

  • John JeongFounder/CEO
  • Deokhaeng LeeFounder
  • Yujong LeeFounder

About Char

Char is a daily notepad that finishes your todos for you. Type a checkbox, and an agent picks it up, researching, drafting, or scheduling on your behalf. Stay in command. Char does the work.

YC batch
S25 · Summer 2025
Status, per YC
Active
Category
AI, Developer tools
Team size
3
Location
Seoul, Seoul, South Korea; Remote
Founded
2023
Checked
6h ago

YC tags: SaaS, Productivity, Open Source, AI, AI Assistant

Char in S25: 166 companies, 92% AI

GitHub LinkedIn

Char: questions

Which YC batch was Char in?

Char was in Y Combinator's Summer 2025 batch (S25).

Is Char still active?

Y Combinator lists Char as active.

Who founded Char?

Char's founders, as listed on its YC page: John Jeong (Founder/CEO), Deokhaeng Lee (Founder), Yujong Lee (Founder).

Where is Char based?

Char lists Seoul, Seoul, South Korea; Remote as its location on YC's directory.