harness.racer
LOCAL HARNESS BENCHMARK

Race the agents
already on your machine.

Cold start, time to first output, visible tokens per second — streamed live, side by side. No API keys.

CodexClaude CodeCursorGrokOpenCode
LIVE TIMING SIMULATED

They’re off.

01 Attention paper 02 nanoGPT attention
0 / 8 runs complete0%