Zibra Labs
YC X26 · Active · Distributed runtime for AI workloads at scale
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 TrainLoopShared: fine tuning, reinforcement learning, performanceActiveAI, Devtools | AI, Devtools | Active | YCW25 |
 PolymathShared: long horizon, horizon agent, simulationActiveAI | AI | Active | YCW26 |
 QuicknodeShared: scale high, high performance, gradeActiveDevtools | Devtools | Active | YCW21 |
 AviroShared: long horizon, post training, reinforcement learningActiveAI | AI | Active | YCX25 |
 MangoDeskShared: long horizon, gradeActiveAI | AI | Active | YCS25 |
 Cornelis Networksnot in a program hereShared: cluster, hpc, scaleElsewhereOther | Other | Elsewhere | |
 Prime Intellectnot in a program hereShared: reinforcement learning, compute, agentElsewhereOther | Other | Elsewhere | |
 Together AInot in a program hereShared: fine tuning, trainingElsewhereOther | Other | Elsewhere |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 OsmosisShared: reinforcement learning, post training, fineActiveAI, Devtools | AI, Devtools | Active | YCW25 |
 Unsloth AIShared: fine tuning, reinforcement learning, trainingActiveAI, Devtools | AI, Devtools | Active | YCS24 |
 PipeshiftShared: workload, cluster, runtimeActiveAI, Devtools | AI, Devtools | Active | YCS24 |
 LotasShared: quantitative tradingActiveAI, Data, Devtools | AI, Data, Devtools | Active | YCS25 |
 SpartaShared: high performance, reinforcement learning, large scaleNot statedAI | AI | Not stated | speedrunSR006 |
Also from X26 in AI
All of X26| Company | Category | Status |
|---|---|---|
 AbInitio BioThe Intelligence layer for Drug ManufacturingActiveAI | AI | Active |
 Advanced Metal ResearchMachine intelligence for American WeldingActiveAI | AI | Active |
 AgentPhonePhone Numbers for AI AgentsActiveAI | AI | Active |
 AkkariAutonomous Customer OperationsActiveAI | AI | Active |
 AllowanceThe spend control layer for AI agentsActiveAI | AI | Active |
 AmborasAI Native ShopifyActiveAI, Data, Devtools | AI, Data, Devtools | Active |
Founders
- Ibrahim RabbaniFounder/CEO
- Zac PoliczerFounder/CTO
About Zibra Labs
We build distributed compute clusters with the cheapest CPUs and GPUs across Hyperscalers and Neoclouds for AI. Our mission is to bring frontier-grade infrastructure to everyone. We're starting by building large scale high performance computing (HPC) clusters for quantitative trading firms to run parallel simulation workloads such as backtesting. Our technology generalizes to critical AI workloads such as post-training with reinforcement learning, fine-tuning, long-horizon agents with high tool use, and batch inference.
- YC batch
- X26 · Spring 2026
- Status, per YC
- Active
- Category
- AI, Developer tools
- Team size
- 2
- Location
- San Francisco, CA, USA
- Founded
- 2026
- Checked
- 35m ago
Zibra Labs: questions
Which YC batch was Zibra Labs in?
Zibra Labs was in Y Combinator's Spring 2026 batch (X26).
Is Zibra Labs still active?
Y Combinator lists Zibra Labs as active.
Who founded Zibra Labs?
Zibra Labs's founders, as listed on its YC page: Ibrahim Rabbani (Founder/CEO), Zac Policzer (Founder/CTO).
Where is Zibra Labs based?
Zibra Labs 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.