Zibra Labs builds distributed compute clusters that leverage the most economical CPUs and GPUs across hyperscalers and neoclouds for AI workloads. The company initially targets quantitative trading firms with large-scale high-performance computing clusters for backtesting and parallel simulation, with applications extending to post-training reinforcement learning, fine-tuning, long-horizon agents, and batch inference. It was founded by Ibrahim Rabbani, a former tech lead of Ray who previously built databases at LinkedIn, and Zac Policzer, who has extensive experience with large-scale databases. Zibra Labs is based in San Francisco and is part of Y Combinator's Spring 2026 batch.
Zibra Labs
ActiveDistributed Compute for AI
Total raised
$500K
1 round
Stage
Seed
Jan 2026
Team
1-10
since 2026
Pricing
Enterprise
Founded
2026
San Francisco, United States
Agent-ready
—
Distributed compute clusters spanning hyperscalers and neoclouds
Sources the most economical CPUs and GPUs across providers
Large-scale clusters for backtesting and parallel simulation
Initial focus on quantitative trading HPC workloads
Supports post-training reinforcement learning and fine-tuning
Handles long-horizon agents and batch inference workloads
Cross-provider orchestration for AI and HPC jobs
Cost optimization by routing workloads to cheapest available capacity
Est. monthly stack spend
~$100/mo
Infra
AWS
45/100
Developing
MCP server
Public API
Webhooks
OAuth 2.0
SDKs · Python
Jan 2026 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What does Zibra Labs build?
- It builds distributed compute clusters that leverage the most economical CPUs and GPUs across hyperscalers and neoclouds for AI and HPC workloads.
- Who are the initial customers?
- Zibra Labs initially targets quantitative trading firms needing large-scale HPC clusters for backtesting and parallel simulation.
- What other workloads does it support?
- Applications extend to post-training reinforcement learning, fine-tuning, long-horizon agents, and batch inference.
- Who founded Zibra Labs?
- It was founded by Ibrahim Rabbani, a former tech lead of Ray who previously built databases at LinkedIn, and Zac Policzer, who has extensive large-scale database experience.
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