Schema Harness Achieves ~99% on Arc‑AGI‑3 Public

Re:Schema Harness Achieves ~99% on Arc‑AGI‑3 Public by ClassAndBurn on Thursday July 16, 2026 @03:54PM (#48939444)

It's likely smart enough. It just needs to be told to do it and provided the ability to introspect it. How close could foundational models get to building this harness if explicitly prompted to?

We've only just started training models to use tools. Next, we'll train them to build them. Harness engineering is an ephemeral art.

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Re:Schema Harness Achieves ~99% on Arc‑AGI‑3 Public by vessenes on Thursday July 16, 2026 @04:29PM (#48939809)

Let's maybe say not experienced enough / insufficiently RL'ed then -- 5.6 Sol did not reach for a harness solution like this when it got only 13% or son AGI-3 recently. I agree it's interesting to find the point in the prompting when it could 'tip' and do this. I have no instinct for where that point is, except that it must be somewhere, because I bet the Schema Harness was not hardcoded.

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