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Introducing AutoRouter Heuristic v2: 27% More Tasks Solved at 45% Lower Cost
Heuristic v2 is a new classifier for LiteLLM's AutoRouter, pretrained across multiple rounds of graded response data so it ships with zero cold start. On a 21-task Terminal-Bench 2.0 subset it solved 3 more tasks than Heuristic v1, at 45% lower cost per solved task and lower latency.
Heuristic v2, LiteLLM's new AutoRouter classifier, is up to 45% more efficient than Heuristic v1: more tasks solved, at lower cost, in less time. Only the classifier changed. No cold start. Heuristic v2 ships pretrained across multiple rounds of graded response data, so it already knows which tier to trust before it sees your first prompt 3 more tasks solved. 14/21 against 11/21, a 27% jump…
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