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Paper · arXiv

L3M: A Verifiable Harness and Runtime for Self-Extending and Self-Improving Agents

The lasting gains in AI have come from methods that absorb more computation, and language models already scale computation within a call. Useful work, though, happens across calls: over hours or days, through tools and external systems, among many agents and the humans they work for, and increasingly through code the agents write themselves. Whether that work compounds is enabled by the harness around it, and the harness faces a constraint the model does not: of the three participants in such a computation, the human, the model and code, only the human's attention does not scale, so the computation can grow only if the human is not in every loop. L3M is a runtime built on that premise, wr...

AuthorsCarson Eisenach, Robert Joseph George, Vincent Quenneville-Belair et al.
Primary categorycs.AI
Published14 October 2026
Last updated at source14 October 2026
cs.AIcs.LG
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