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Startups14,448Programs29

14,448 startups · 29 programs

Luminal

Active · Making AI run fast on any hardware.

WebsiteYC profile

Why it ranks

How the rank works
11signal of 100 · rising 8
  • team of 7Team size · YC's directory+4.7
  • went through YCProgram · this site+4
  • hiringHiring · Titles (titles.fru.dev), YC+2

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

Competitors

AIMakoraShared: generate gpu, compilerNeoStartup →AIAcquiredTensorPoolShared: cloud computing, aiops, gpuYC W25San FranciscoStartup →AIInactiveMysticShared: aiops, gpu, runYC W21AustinStartup →AISF TensorShared: gpu code, model, infrastructureYC F25San FranciscoStartup →Developer toolsInactiveCakeworkShared: cloud computing, framework, githubYC W23SeattleStartup →
Companies closest to Luminal
Company
MakoraShared: generate gpu, compilerNeo Not statedAI
TensorPoolShared: cloud computing, aiops, gpuYC W25AcquiredAI, Devtools
MysticShared: aiops, gpu, runYC W21InactiveAI, Devtools
SF TensorShared: gpu code, model, infrastructureYC F25ActiveAI, Devtools
CakeworkShared: cloud computing, framework, githubYC W23InactiveDevtools

Adjacent

AIThunder ComputeShared: cloud computing, gpu, infrastructureYC S24San FranciscoStartup →Developer toolsProtonetShared: cloud computing, run, infrastructureYC W16Startup →AIInactiveAirtrain AIShared: cloud computing, aiops, codeYC S22San FranciscoStartup →AIOrgoShared: cloud computing, run, infrastructureYC F26San FranciscoStartup →AIHyrexShared: cloud computing, aiops, frameworkYC S24San FranciscoStartup →
Companies next to Luminal
Company
Thunder ComputeShared: cloud computing, gpu, infrastructureYC S24ActiveAI, Data, Devtools
ProtonetShared: cloud computing, run, infrastructureYC W16ActiveDevtools
Airtrain AIShared: cloud computing, aiops, codeYC S22InactiveAI, Devtools
OrgoShared: cloud computing, run, infrastructureYC F26ActiveAI, Devtools
HyrexShared: cloud computing, aiops, frameworkYC S24ActiveAI, Devtools

Also from S25 in AI

All of S25
AIAlterPrivileged Access Management for AI AgentsYC S25New York CityStartup →AIDedalus LabsPersistent computers for AI agentsYC S25San FranciscoStartup →AIKERNELCrazy fast, open source infra for AI agents to use the InternetYC S25San FranciscoStartup →AIAdaptionalAI-powered insurance claims reviewYC S25San FranciscoStartup →AIAgentMailEmail Inboxes for AI AgentsYC S25San FranciscoStartup →AIAutosanaAI agents for E2E testing across mobile & webYC S25San FranciscoStartup →
Company
AlterPrivileged Access Management for AI Agentsteam of 2ActiveAI, Devtools
Dedalus LabsPersistent computers for AI agentsteam of 8hiringActiveAI, Devtools
KERNELCrazy fast, open source infra for AI agents to use the Internetteam of 22ActiveAI, Devtools
AdaptionalAI-powered insurance claims reviewhiringActiveAI
AgentMailEmail Inboxes for AI Agentsteam of 10hiringActiveAI, Devtools
AutosanaAI agents for E2E testing across mobile & webteam of 5ActiveAI, Devtools

Founders

  • Joe FiotiFounder/CEO
  • Matthew GuntonFounder/CTO
  • Jake StevensFounder

About Luminal

Luminal builds an ML framework and compiler that generates GPU code. Our stack 10x's model speed while simplifying deployment and cutting idle GPU costs Github: https://github.com/luminal-ai/luminal Discord: https://discord.gg/APjuwHAbGy

YC batch
S25 · Summer 2025
Status, per YC
Active
Category
AI, Developer tools
Team size
7
Location
San Francisco, CA, USA
Founded
2025
Checked
6h ago

YC tags: AIOps, Developer Tools, Cloud Computing, AI

Changes seen

TagsOct 19, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗
StageSep 28, 2026

Stage changed from Early to Growth.

Source ↗

Luminal in S25: 166 companies, 92% AI

GitHub LinkedIn

Luminal: questions

Which YC batch was Luminal in?

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

Is Luminal still active?

Y Combinator lists Luminal as active.

Who founded Luminal?

Luminal's founders, as listed on its YC page: Joe Fioti (Founder/CEO), Matthew Gunton (Founder/CTO), Jake Stevens (Founder).

Where is Luminal based?

Luminal lists San Francisco, CA, USA as its location on YC's directory.