Source record

Published by arXiv cs.MA (T1 source). The original is at https://arxiv.org/abs/2608.25955.

Pipeline notes

The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.

Praxist is a lineage-centered system for autonomous R&D agents that converts reproducible artifacts and evaluator outcomes into a typed evidence graph of findings, lane-structured frontiers, and agendas. On MLE-bench's 75 tasks it produced 60 medals (80%, 49 gold) vs a Claude Code baseline's 55 medals (73.3%, 34 gold) at roughly one-twelfth the cost (US$3,054 vs US$38,370). Four case studies (trading, SLAM, tokamak control, rocket landing) extend the approach to open-ended engineering problems.

Proposes a structural separation between local artifact construction and cohort-level evidence synthesis, with auditable lineages. The 12x cost reduction on MLE-bench and four open-ended case studies are concrete measurements, not aspirational claims.

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