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Cumulus Labs

The Fastest Multimodal Inference OS

y-combinatorWinter 2026🇺🇸 San Francisco2 peoplehiring
Veer Shah

Veer Shah · 1 founder

2026Founded
Team
2
current
Co-founders
1
current
Stage
Founded
Source for Founded
Profile coverage4 of 8 · missing Funding, Signals, Customers, Stack / tools · last run 8/8/2026

About

Cumulus Labs lets engineering teams ship AI in production without needing a dedicated ML platform team. Right now, companies building AI products are forced to stitch together separate vendors for routing, observability, evaluation, fine-tuning, and inference. This fragmented approach is brittle, expensive, and is a common reason enterprises fail with AI. We replace that entire stack with a single unified platform. Developers can keep their existing code while instantly upgrading to a unified platform that handles routing, semantic caching, continuous shadow evaluation, simulated data, and one-click fine-tuning. Behind the platform is Ion, our proprietary inference engine running on a custom NVIDIA Grace GPU fleet. Ion uses in-house custom GPU kernels to deliver 30 to 50 percent more throughput than standard vLLM or SGLang, giving our customers SOTA inference economics.

Founder