Sail is the AI inference provider designed for background agents. We serve open-source models at massive scale and maximum efficiency. Customers use us for deep research over thousands of websites, or coding agents that write & test PRs overnight.

LLM Cost Comparison
LLM Performance Comparison

Our API is OpenAI-compatible, in the responses format, and we support all the best open models (Deepseek, Kimi, Qwen, etc), including fine-tunes. We're in private beta right now, but onboarding new customers quickly. Meet us today, and we'll be serving your tokens within the hour.

About us

We are systems nerds with commercial focus. The team comes from NVIDIA, Stanford, YC, and Apple. We work at every level of the stack by:

  • Writing CUDA to push towards speed-of-light performance on GPUs
  • Digging into the guts of inference engines like SGLang to maximize efficiency
  • Distributing work across providers to maximize robustness and fleet utilization
  • Using spot compute when it's available, and safely failing over to more reliable compute when it's not

If this all sounds exciting, and it's hard to pick just one, then we're just like you. Let's talk!

Why

Agents are getting really good at running autonomously. In 2026, they will be good enough to make meaningful, independent progress on hard problems, given sufficient tokens. Our job is to dramatically increase intelligence per dollar, and make sure no compute goes to waste.

Talk to us

Neil Movva and Samir Menon are founders@sailresearch.com