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Cold Starts Solved

Sep 3, 2026 · 8 min read

When a request arrives, the model should already be waiting. In most clouds it isn't — a container has to boot, pull weights and warm up, and your user waits 30 seconds on the first call.

The spin-up tax

Cold starts are a capacity-planning problem masquerading as a latency problem. If you keep models loaded, you pay for idle. If you don't, you pay in dropped requests.

Warm by default

Nebula keeps models on standby across a shared fleet, so the first token lands in single-digit milliseconds — without a dedicated, always-on cluster.

  • No container boot on the critical path
  • No weight-loading delay
  • Autoscaling that anticipates, not reacts

Cold starts are a solved problem. We just stopped treating them as a cost of doing business.

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