Anchorhead

YC W26 · Active · Evals for frontier research agents

Competitors

Companies closest to Anchorhead
Company	Category	Status	Program
idlerShared: reinforcement learning, eval, frontierActiveAI, Devtools	AI, Devtools	Active	YCS25
HABITShared: research agent, frontier, modelActiveAI, Devtools	AI, Devtools	Active	YCX25
Vibrant LabsShared: reinforcement learning, eval, agentActiveAI, Devtools	AI, Devtools	Active	YCW24
BryelShared: research engineeringActiveAI, Devtools	AI, Devtools	Active	YCF26
WebhoundShared: research agent, createActiveAI, Data	AI, Data	Active	YCS23

Adjacent

Companies next to Anchorhead
Company	Category	Status	Program
Buckeye AIShared: domain expertNot statedOther	Other	Not stated	EF2025
HUDShared: reinforcement learning, eval, modelActiveAI, Devtools	AI, Devtools	Active	YCW25
EkpaShared: research agentActiveAI	AI	Active	YCS26
AviroShared: reinforcement learning, frontier, researchActiveAI	AI	Active	YCX25
UnifyShared: reinforcement learning, frontier, modelActiveAI, Devtools	AI, Devtools	Active	YCW23

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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: 1h ago

YC tags: Reinforcement Learning

Anchorhead in W26: 199 companies, 80% 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.

Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.