Elvis’s small Pi SDK test finds Jev Router cheaper and faster than fixed GPT-6 Sol

elvis tested Jev Router, the packaged typesafe/jev-router on OpenRouter, on a small support agent built with a custom harness using the Pi SDK. The same 8 cases were run against a fixed GPT-6 Sol baseline, for 32 real calls in total. Both setups got every case right.

The router cost $0.008 versus $0.018 and had a median response time of 1.5 seconds versus 1.9 seconds. elvis noted that the sample is small, and said caching for using Jev as a router is not fully solved. A routing-pattern implementation is published in Jev decisions in a Pi SDK harness.