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hiloop

YC S26

San Francisco, US · Founded 2026 · 2 employees · 18 known investors

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hiloop provides snapshottable, forkable compute infrastructure with built-in observability for AI agents that propose, run, and verify experiments (autoresearch). It offers self-provisioning sandboxes via API, brokered secrets, and per-run tracing with token and cost tracking queryable via SQL, aimed at teams doing autoresearch, model training, and performance-critical development.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareArtificial IntelligenceMachine LearningReinforcement LearningInfrastructureUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S26)

hiloop was founded in 2026 by Karan Brar and Thomas Boser.

KBKaran Brar
Karan BrarCEO & Co-founderFounder and CEO of hiloop, which offers snapshottable, forkable compute infrastructure with built-in observability for AI agents running autoresearch. He previously worked in ML at Reducto and served as Head of ML Infra at DynamoAI.
TBThomas Boser
Thomas BoserCo-founder/CTOFounder and CTO of hiloop, which builds snapshottable, forkable compute infrastructure with built-in observability for AI agents running and verifying experiments. He previously worked as an engineer at Reducto, a founding engineer at Crosswise, a senior ML engineer at Discord, and in ML roles at Sentropy and SoFi.

Investors · 18

Transpose Platform Managementlisted by Transpose Platform ManagementSan Francisco

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Vela Partnerslisted by Vela PartnersSan Francisco · $100K – $500K
Y Combinatorlisted by Y CombinatorSan Francisco · $500K

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Andreessen HorowitzreportedMenlo Park · $500K – $50M

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AV Capitalreported

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BoxGroupreportedNew York · $250K – $1M

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C Square Capitalreported

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Firestreak Venturesreported

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GaingelsreportedNew York · $200K – $500K

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GravityreportedMinneapolis

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Grey Street PartnersreportedMelbourne · $50K

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Maiora Rebel Venturesreported

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OK Computerreported

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Peak XV PartnersreportedBengaluru · $100K – $10M

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Scribble VenturesreportedPortola Valley · $750K – $1.5M

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Spot VCreportedNewark

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Varion VenturesreportedSan Francisco

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Related companies · 5

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RiftenRiften provides a routing layer that sits between a company's applications and large language model APIs, directing each request to the least expensive capable model and using self-hosted open-weight models where possible to reduce inference costs. It also uses the resulting task data to train private, company-owned models on recurring work, serving businesses that run AI-powered applications.
Experiential LabsAn applied AI research lab that develops world models enabling agents to simulate physical environments with high-fidelity reconstruction, using technology derived from autonomous vehicle systems.
UnifyUnify provides AI agents that handle routine business tasks across communications, sales, operations, and engineering by executing pre-built workflows or custom automation. The service serves tech-focused companies and teams looking to offload administrative and repetitive work.
MonteMonte builds post-training and continual learning infrastructure that transforms general AI models into specialized agents adapted to specific organizational workflows. The platform captures training signals from real work, measures performance against actual constraints, and enables reinforcement learning so models improve continuously from experience.

Companies working in the same space as hiloop.

Legal entities · 1

corporate structure
Hiloop, Inc.

In the news

hiloop: we run thousands of experiments to improve your modelsycombinator.com · Jul 2026

Frequently asked questions

What does hiloop do?
hiloop provides snapshottable, forkable compute infrastructure with built-in observability for AI agents that propose, run, and verify experiments (autoresearch). It offers self-provisioning sandboxes via API, brokered secrets, and per-run tracing with token and cost tracking queryable via SQL, aimed at teams doing autoresearch, model training, and performance-critical development.
Who founded hiloop?
hiloop was founded by Karan Brar, Thomas Boser in 2026.
Who are hiloop's investors?
hiloop's investors include Redbud Trail Group, Transpose Platform Management, Vela Partners, Y Combinator, Andreessen Horowitz, AV Capital, BoxGroup, C Square Capital and 10 more.
Where is hiloop headquartered?
hiloop is headquartered in San Francisco, US.