Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

/dev/fast

Active · /dev/fast is the AI-native code forge

WebsiteYC profile

Why it ranks

How the rank works
8signal of 100 · rising 8
  • went through YCProgram · this site+4
  • team of 4Team size · YC's directory+3.6

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

Competitors

AIAgentic LabsShared: software design, dev, codeYC W24New York CityStartup →AIMagmaShared: agent traceYC S26San FranciscoStartup →
Companies closest to /dev/fast
Company
Agentic LabsShared: software design, dev, codeYC W24ActiveAI, Devtools
MagmaShared: agent traceYC S26ActiveAI, Data, Devtools

Adjacent

DataBaserowShared: code, open, sourceSeedcamp 2020Startup →DataInactiveBrieferShared: interactive visualization, code, interfaceYC S23São PauloStartup →AIGitCafeShared: forge, agentYC S26San FranciscoStartup →AIAppacaShared: codeAntler 2023AustraliaStartup →AISequa AIShared: dev, giveAntler 2025GermanyStartup →
Companies next to /dev/fast
Company
BaserowShared: code, open, sourceSeedcamp 2020Not statedData, Devtools
BrieferShared: interactive visualization, code, interfaceYC S23InactiveData, Devtools
GitCafeShared: forge, agentYC S26ActiveAI, Devtools
AppacaShared: codeAntler 2023Not statedAI
Sequa AIShared: dev, giveAntler 2025Not statedAI

Also from W26 in AI

All of W26
AICorelayerAI production engineer for regulated industriesYC W26San FranciscoStartup →AIIncidentFoxAI SRE agent that triages, coordinates, and fixes production incidentsYC W26San FranciscoStartup →AIo11OpenRouter wallet for paid goods and servicesYC W26San FranciscoStartup →AIQuotient LabsUse Claude Code at 47% less cost in one line of installation.YC W26San FranciscoStartup →AIRunAnywhereFastest inference anywhere: open models on-prem, hosted or on-deviceYC W26San FranciscoStartup →AISalusGuardrails to validate your agent's actions before they executeYC W26San FranciscoStartup →
Company
CorelayerAI production engineer for regulated industriesteam of 3ActiveAI, Devtools
IncidentFoxAI SRE agent that triages, coordinates, and fixes production incidentsteam of 2ActiveAI, Devtools
o11OpenRouter wallet for paid goods and servicesteam of 2ActiveAI, Devtools
Quotient LabsUse Claude Code at 47% less cost in one line of installation.team of 2ActiveAI, Devtools
RunAnywhereFastest inference anywhere: open models on-prem, hosted or on-deviceteam of 5hiringActiveAI, Devtools
SalusGuardrails to validate your agent's actions before they executeteam of 2hiringActiveAI, Devtools

Founders

  • Sid MenonFounder/CEO
  • Ketan AgrawalFounder
  • Milan BhandariFounder/CTO
  • Alex IansitiFounder/CPO

About /dev/fast

/dev/fast is the AI-native code forge. We're building Whiteboard, an open-source canvas for thoughtful software design. The Whiteboard app is designed to give you confidence in your code. Critique interactive visualizations, diffs, and agent traces, all from one interface. Learn more at https://dev.fast

YC batch
W26 · Winter 2026
Status, per YC
Active
Category
AI, Developer tools
Team size
4
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: Developer Tools

/dev/fast in W26: 199 companies, 81% AI

/dev/fast: questions

Which YC batch was /dev/fast in?

/dev/fast was in Y Combinator's Winter 2026 batch (W26).

Is /dev/fast still active?

Y Combinator lists /dev/fast as active.

Who founded /dev/fast?

/dev/fast's founders, as listed on its YC page: Sid Menon (Founder/CEO), Ketan Agrawal (Founder), Milan Bhandari (Founder/CTO), Alex Iansiti (Founder/CPO).

Where is /dev/fast based?

/dev/fast lists San Francisco, CA, USA as its location on YC's directory.