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.