Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Anchorhead

Active · Evals for frontier research agents

WebsiteYC 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

AIHABITShared: research agent, frontier, modelYC X25San FranciscoStartup →AIWebhoundShared: research agent, createYC S23San FranciscoStartup →AIEkpaShared: research agentYC S26BostonStartup →AITokenlessShared: reinforcement learning, eval, researchYC S26San FranciscoStartup →AIidlerShared: reinforcement learning, eval, frontierYC S25San FranciscoStartup →
Companies closest to Anchorhead
Company
HABITShared: research agent, frontier, modelYC X25ActiveAI, Devtools
WebhoundShared: research agent, createYC S23ActiveAI, Data
EkpaShared: research agentYC S26ActiveAI
TokenlessShared: reinforcement learning, eval, researchYC S26ActiveAI, Devtools
idlerShared: reinforcement learning, eval, frontierYC S25ActiveAI, Devtools

Adjacent

OtherBuckeye AIShared: domain expertEF 2025San FranciscoStartup →AIAntinuousShared: research agent, workYC X26San FranciscoStartup →AIJigsawShared: frontier researchspeedrun SR005San FranciscoStartup →AIVibrant LabsShared: reinforcement learning, eval, agentYC W24San FranciscoStartup →AIVoicepanelShared: eval, realYC W24Startup →
Companies next to Anchorhead
Company
Buckeye AIShared: domain expertEF 2025Not statedOther
AntinuousShared: research agent, workYC X26ActiveAI
JigsawShared: frontier researchspeedrun SR005Not statedAI, Data
Vibrant LabsShared: reinforcement learning, eval, agentYC W24ActiveAI, Devtools
VoicepanelShared: eval, realYC W24ActiveAI, Data

Also from W26 in AI

All of W26
AIAshrEnterprise post-training, monitoring, and continual learning platformYC W26San FranciscoStartup →AIBrumbyRobot Cowboys that Herd Cattle with AI DronesYC W26SydneyStartup →AISynthetic SciencesInfrastructure for Autonomous ScienceYC W26San FranciscoStartup →AITraverseCustom models and inference, built and run for enterprisesYC W26San FranciscoStartup →AI/dev/fast/dev/fast is the AI-native code forgeYC W26San FranciscoStartup →AI10x ScienceThe AI-native platform for next-generation protein characterization.YC W26San FranciscoStartup →
Company
AshrEnterprise post-training, monitoring, and continual learning platformteam of 2ActiveAI, Data
BrumbyRobot Cowboys that Herd Cattle with AI Dronesteam of 32 programsActiveAI
Synthetic SciencesInfrastructure for Autonomous Scienceteam of 4ActiveAI, Devtools
TraverseCustom models and inference, built and run for enterprisesActiveAI
/dev/fast/dev/fast is the AI-native code forgeteam of 4ActiveAI, Devtools
10x ScienceThe AI-native platform for next-generation protein characterization.team of 5hiringActiveAI

Founders

  • Perbhat KumarFounder/CEO

About Anchorhead

We build custom evals for product teams, as a service. To build these eval sets, we source domain experts and have them turn their work into original, real world evals. For example, our research engineering experts have create tasks involving optimizing an algorithm, deploying a model, or running experiments to solve a novel problem. A grader scores the agent’s performance, and these scores serve as signals during evaluations.

YC batch
W26 · Winter 2026
Status, per YC
Active
Category
AI, Developer tools
Team size
1
Location
San Francisco, CA, USA
Founded
2025
Checked
13h ago

YC tags: Reinforcement Learning

Anchorhead in W26: 199 companies, 81% AI

Anchorhead: questions

Which YC batch was Anchorhead in?

Anchorhead was in Y Combinator's Winter 2026 batch (W26).

Is Anchorhead still active?

Y Combinator lists Anchorhead as active.

Who founded Anchorhead?

Anchorhead's founders, as listed on its YC page: Perbhat Kumar (Founder/CEO).

Where is Anchorhead based?

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