Routing GPT 5.1 medium tasks to open models with Jev cuts costs ~73% at 98.4% success
gaganghotra_ · x · 2026-10-15
Developer 1littlecoder published a writeup on Jev Router (@typesafeai): not every prompt needs a frontier model. By routing GPT 5.1 medium-difficulty tasks to open models hosted on Nebius, he achieved 73% cost savings with a 98.4% success rate in a small test use case.
He argues this pattern can extend to many other workloads — every enterprise needs a router layer that decides which requests go to frontier models and which to cheaper open models.
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