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hiloop

hiloop is a YC Summer 2026 (S26) company. Based in San Francisco, CA, USA. Team of 2.

  • Artificial Intelligence
  • Developer Tools
  • Machine Learning
  • Reinforcement Learning
  • Infrastructure

About hiloop

GPAgent's own fund-neutral profile, written from public information. Updated Oct 4, 2026.

Summary

hiloop builds an autoresearch platform that automatically improves AI models and agents against a metric the customer owns. Engineering teams bring a task, an existing model or agent, and an evaluation function; hiloop runs thousands of directed experiments across training data, post-training methods, prompts, tools, and system configuration, then returns verified improvements. It replaces the manual, iterative ML research loop that teams otherwise run themselves.

Go-to-market

hiloop targets AI and ML engineering teams whose general-purpose models fall short on specific tasks, with early access granted through direct founder outreach.

From the Y Combinator listing

How hiloop describes itself in Y Combinator's public directory.

Infrastructure for recursive self-improvement

hiloop helps teams train agents for tasks where general models are not good enough. Give us a task, your current agent or model, and an evaluation. hiloop runs an autoresearch campaign across data, SFT and other post-training methods, continual learning, prompts, tools, harnesses, and systems, then returns the best verified improvement. It runs hosted or in your cloud. We provide the research system around models: persistent memory, full experiment lineage, compute orchestration, and statistical verification. We’re starting with agent and model training, continual learning, and optimization. Reach out to us for early access at founders@hiloop.ai.

Facts

Industry
B2B / B2B -> Infrastructure
Location
San Francisco, CA, USA
Team size
2
Status
Active
Stage
Early

Founders (1)

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