Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

OneTriangle

Active · Prefill optimizations for the fastest inference

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

AIisoquantShared: inference cloudYC F26San FranciscoStartup →AIRunAnywhereShared: fastest inference, infrastructureYC W26San FranciscoStartup →AIOrchestraShared: inference cloud, cost, infrastructureYC S26San FranciscoStartup →AITouchmarkShared: infrastructure, inference, demandYC S26San FranciscoStartup →AIBeamShared: inference, cloud, agentYC W22New York CityStartup →OtherLambdaShared: inference, cloud, computeStartup →OtherPositronShared: inferenceStartup →
Companies closest to OneTriangle
Company
isoquantShared: inference cloudYC F26ActiveAI
RunAnywhereShared: fastest inference, infrastructureYC W26ActiveAI, Devtools
OrchestraShared: inference cloud, cost, infrastructureYC S26ActiveAI, Devtools
TouchmarkShared: infrastructure, inference, demandYC S26ActiveAI, Devtools
BeamShared: inference, cloud, agentYC W22ActiveAI, Devtools
Lambdanot in a program hereShared: inference, cloud, computeElsewhereOther
Positronnot in a program hereShared: inferenceElsewhereOther

Adjacent

AIHopperShared: infrastructure, inference, trainingYC F26San FranciscoStartup →AIConfident SecurityShared: infrastructure, inferenceSPC 2024San FranciscoStartup →AIPipeshiftShared: infrastructure, inferenceYC S24San FranciscoStartup →AIDreamscale LabsShared: infrastructure, inference, fastestYC F26San FranciscoStartup →AIUbicloudShared: infrastructure, inference, cloudYC W24San FranciscoStartup →
Companies next to OneTriangle
Company
HopperShared: infrastructure, inference, trainingYC F26ActiveAI, Devtools
Confident SecurityShared: infrastructure, inferenceSPC 2024Not statedAI, Devtools
PipeshiftShared: infrastructure, inferenceYC S24ActiveAI, Devtools
Dreamscale LabsShared: infrastructure, inference, fastestYC F26ActiveAI, Devtools
UbicloudShared: infrastructure, inference, cloudYC W24ActiveAI, Data, Devtools

Also from S26 in AI

All of S26
AIArchalAPI sandboxes, built for AI agentsYC S26San FranciscoStartup →AIAutoresearch, Inc.Autoresearch as a service: we solve your hardest measurable problemsYC S26San FranciscoStartup →AICautionHosting platform for software you can't afford to have hackedYC S26George TownStartup →AIClickManaged Agents APIYC S26San FranciscoStartup →AIDecaworkTraining company-specific models that approve AI actions.YC S26San FranciscoStartup →AIExperiential LabsOpen source AI gateway that turns your traffic into better modelsYC S26San FranciscoStartup →
Company
ArchalAPI sandboxes, built for AI agentsteam of 2ActiveAI, Devtools
Autoresearch, Inc.Autoresearch as a service: we solve your hardest measurable problemsteam of 3ActiveAI, Devtools
CautionHosting platform for software you can't afford to have hackedteam of 5ActiveAI, Devtools
ClickManaged Agents APIActiveAI, Devtools
DecaworkTraining company-specific models that approve AI actions.2 programsteam of 2ActiveAI, Devtools
Experiential LabsOpen source AI gateway that turns your traffic into better modelsteam of 2ActiveAI, Devtools

Founders

  • Hannah ChungFounder/CEO
  • Medha VenkatapathyFounder/CTO

About OneTriangle

OneTriangle optimizes prefill, speeding up TTFT 10x utilizing KV cache transfer tech We integrate with your dedicated endpoints, or GPUs to speed up inference.

YC batch
S26 · Summer 2026
Status, per YC
Active
Category
AI, Developer tools
Team size
4
Location
San Francisco, CA, USA
Founded
2026
Checked
6h ago

YC tags: Open Source, Infrastructure, AI

Changes seen

One-linerNov 5, 2026

Rewrote its one-liner; it read "The cheapest, fastest inference cloud"

Source ↗
TagsOct 19, 2026

Newly tagged AI; no longer tagged Artificial Intelligence.

Source ↗

OneTriangle in S26: 229 companies, 88% AI

LinkedIn

OneTriangle: questions

Which YC batch was OneTriangle in?

OneTriangle was in Y Combinator's Summer 2026 batch (S26).

Is OneTriangle still active?

Y Combinator lists OneTriangle as active.

Who founded OneTriangle?

OneTriangle's founders, as listed on its YC page: Hannah Chung (Founder/CEO), Medha Venkatapathy (Founder/CTO).

Where is OneTriangle based?

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