OpenRouter rebuilds provider routing to weigh speed and reliability alongside price
Overview
OpenRouter says its new provider routing algorithm picks endpoints by a real-time Routing Cost that combines effective price, waiting time and retry cost, rather than price alone.
In a one-week switchback experiment over 24 million requests, the company reports TTFT p50 fell 16.9%, throughput p50 rose 16.3%, and requests hitting a 429 error dropped 67%, while cost per K requests rose 6.0%.
Requests with no explicit provider sort and no provider order or ignore list use the new router automatically on models where it is enabled. Users who want the old price-only behavior can set provider.sort to "price", append :floor to the model slug, or set price as the default sort in account settings.
A follow-up X post from OpenRouter says the new router rewards providers that deliver the best-quality inference for a request's actual cost. The post does not add technical detail beyond the blog's description.
Written by AI from the articles below · updated Oct 29, 1:09 PM ET
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Developments
3 developments
- Oct 29, 1:06 PM ET · 1 articleOpenRouter explains how it rebuilt its provider routingOpenRouter: OpenRouter explains how it rebuilt its provider routing
- Oct 29, 1:06 PM ET · 1 articleOpenRouter ships new provider router that weights quality, speed and reliability alongside costOpenRouter: OpenRouter overhauls its provider router to favor quality, speed and reliability
- Oct 27, 8:00 PM ET · 1 articleOpenRouter rebuilds its provider routing algorithm to weigh speed and reliability alongside priceOpenRouter Blog: OpenRouter rebuilds provider routing to weigh speed and reliability alongside price
Article timeline
The articles in this story. Times are ET.
OpenRouter@OpenRouterOfficialOpenRouter explains how it rebuilt its provider routingAIOpenRouter's announcement post links to a blog entry describing how the company rebuilt its provider routing. The post itself gives no technical details, so the summary cannot state what changed.
OpenRouter@OpenRouterOfficialOpenRouter overhauls its provider router to favor quality, speed and reliabilityAIOpenRouter says it has shipped its biggest improvement to its provider router since founding the company. The router previously prioritized mostly on price, but now rewards providers that deliver the best-quality inference for a request's actual cost, favoring speed and reliability alongside low prices.

- OpenRouter BlogOfficialPickOpenRouter rebuilds provider routing to weigh speed and reliability alongside price
AIOpenRouter says its new provider routing algorithm picks endpoints by a real-time Routing Cost that combines effective price, waiting time and retry cost. In a one-week switchback experiment over 24 million requests, it cut TTFT p50 by 16.9%, raised throughput p50 by 16.3% and reduced requests hitting a 429 by 67%, at a 6.0% higher cost per K requests.
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