Zenbu

Active · The browser for agentic development

YC X26

Website YC profile

Why it ranks

How the rank works

4signal of 100 · rising 4

went through YCProgram · this site+4

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

Competitors

WarpShared: agentic developmentNeoStartup →AI

EmdashShared: agentic developmentYC W26San FranciscoStartup →

Companies closest to Zenbu
Company	Category	Status	Program
WarpShared: agentic developmentNeo Not statedAI	AI	Not stated	Neo
EmdashShared: agentic developmentYC W26ActiveAI	AI	Active	YCW26

Adjacent

BrowserOSShared: browser, agenticYC S24San FranciscoStartup →Other

WebsimShared: browserSPC 2024San FranciscoStartup →AI

EmeregShared: browser, agenticAntler 2023SingaporeStartup →AI

AskUIShared: agenticSeedcamp 2023Startup →AI

BrowserbaseShared: browserAI Grant Batch 3Startup →

Companies next to Zenbu
Company	Category	Status	Program
BrowserOSShared: browser, agenticYC S24ActiveAI	AI	Active	YCS24
WebsimShared: browserSPC 2024Not statedOther	Other	Not stated	SPC2024
EmeregShared: browser, agenticAntler 2023Not statedAI	AI	Not stated	Antler2023
AskUIShared: agenticSeedcamp 2023Not statedAI	AI	Not stated	Seedcamp2023
BrowserbaseShared: browserAI Grant Batch 3Not statedAI	AI	Not stated	AI GrantBatch 3

Also from X26 in AI

All of X26

SuperlogMake software self-healingYC X26ParisStartup →AI

decuffUncensored AI models, served at scale with zero data retention.YC X26San FranciscoStartup →AI

Deep InteractionsMultiplayer AI app builderYC X26San FranciscoStartup →AI

InstaBoxCloud computers for AI agentsYC X26San FranciscoStartup →AI

InthPrivacy and consent infrastructure that ships with your codeYC X26LondonStartup →AIKeyframe LabsBring AI to life with the world's best interactive avatarsYC X26Los AngelesStartup →

Company	Category	Status
SuperlogMake software self-healingteam of 2ActiveAI, Devtools	AI, Devtools	Active
decuffUncensored AI models, served at scale with zero data retention.ActiveAI, Devtools	AI, Devtools	Active
Deep InteractionsMultiplayer AI app builderteam of 6ActiveAI, Devtools	AI, Devtools	Active
InstaBoxCloud computers for AI agentsteam of 6ActiveAI, Devtools	AI, Devtools	Active
InthPrivacy and consent infrastructure that ships with your codeteam of 3ActiveAI, Devtools	AI, Devtools	Active
Keyframe LabsBring AI to life with the world's best interactive avatarsteam of 2ActiveAI, Devtools	AI, Devtools	Active

Founders

Rob PruzanFounder/CEO

About Zenbu

https://github.com/zenbu-labs/terminal-browser

YC batch: X26 · Spring 2026
Status, per YC: Active
Category: AI, Developer tools
Team size: 1
Location: San Francisco, CA, USA; Remote
Founded: 2026
Checked: 6h ago

YC tags: Developer Tools, Open Source, AI

Changes seen

One-linerSep 28, 2026

Rewrote its one-liner; it read "The extensible IDE for coding agents"

Source ↗

TagsSep 28, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗

Zenbu in X26: 194 companies, 84% AI

GitHub LinkedIn

Zenbu: questions

Which YC batch was Zenbu in?

Zenbu was in Y Combinator's Spring 2026 batch (X26).

Is Zenbu still active?

Y Combinator lists Zenbu as active.

Who founded Zenbu?

Zenbu's founders, as listed on its YC page: Rob Pruzan (Founder/CEO).

Where is Zenbu based?

Zenbu lists San Francisco, CA, USA; Remote as its location on YC's directory.