Developers — Playground

Compose a POST /v1/runs request and watch it take shape in four languages. The run button simulates a trace — no API key needed, nothing leaves your browser.

[ 01 ]POST /v1/runs — compose the request

[ model ]
[ context ]

1–16 — hard ceiling per run

[ body ]POST /v1/runs
{
  "model": "y0-fast",
  "prompt": "Prepare my Thursday.",
  "context": [
    "calendar",
    "documents"
  ],
  "max_steps": 4
}
SIMULATION

Fully client-side. No request is sent; the trace is a plausible rendering of what the runtime would do.