Working notes on LLM routing, prompt optimization, and the cost/quality/latency triangle from Skelf Research.https://route-switch.skelfresearch.com/en-ushttps://route-switch.skelfresearch.com/blog/quality-cost-latency-the-routing-triangle/https://route-switch.skelfresearch.com/blog/quality-cost-latency-the-routing-triangle/You cannot optimize all three at once. What you actually do is pick which one is the constraint, which one is the objective, and which one is allowed to slip. Here's how that shows up in a route-switch config.Tue, 02 Jun 2026 00:00:00 GMThttps://route-switch.skelfresearch.com/blog/per-model-prompt-optimization-what-moves-the-score/https://route-switch.skelfresearch.com/blog/per-model-prompt-optimization-what-moves-the-score/MIPROv2 is two searches in a trench coat: an instruction search and a few-shot search. We walk through what the optimizer actually does to a prompt, what it doesn't do, and where it tends to disappoint.Thu, 28 May 2026 00:00:00 GMThttps://route-switch.skelfresearch.com/blog/multi-model-routing-as-a-feature/https://route-switch.skelfresearch.com/blog/multi-model-routing-as-a-feature/Most multi-model setups in production are an if-else around a provider client. Why turning routing into a first-class gateway concern changes what you can ship — and what you can measure.Thu, 21 May 2026 00:00:00 GMT