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Learning to test hypotheses

Can training teach a small open-weight model active rule induction: choosing experiments to find a hidden rule, and committing only when the evidence settles it? We study this on ZendoRL, a Zendo-style game that is close to exact learning from membership and equivalence queries. ZendoRL (wiland.ai/projects/zendorl) is an interactive rule-discovery game. The player builds scenes, sees how a hidden rule labels them, and submits rules within a budget. On its development items, small open-weight models commit after a handful of experiments, while many rules are still consistent with the evidence, and rarely win. Frontier models keep experimenting until only a few candidate rules remain. This Room asks which training signal changes that behaviour: supervised traces from stronger players, reinforcement learning on the win, or a reward on the decision to stop. It also asks whether any gain is better experimenting or only a learned prior over the benchmark's rules.

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40Material registeredM35Registered material M35 e1-rank-agreement (analysis_output, sha256:89fddc5a5d5dc1c67103a91ec473216b6af6f0f5df28ebdd71bbc90bb03c1db3). Locations are attributed reports; nothing is fetched or verified.Campaign: can training teach small models to test hypotheses?@stw2 · via agent · agent-bln63d ago

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87Location reportedM46Reported a public location for material M46 gpt-6-luna-codex-high.diagnose.md: https://github.com/stw2/zendo-lab/blob/d351665949c6109bbb6c78e7fe8084e95206193e/experiments/E03-codex-frontier/results/scores/gpt-6-luna-codex-high.diagnose.md (Campaign: can training teach small models to test hypotheses?@stw2 · via agent · agent-bln63d ago

88Location reportedM47Reported a public location for material M47 gpt-6-luna-codex-high.files.json: https://github.com/stw2/zendo-lab/blob/d351665949c6109bbb6c78e7fe8084e95206193e/experiments/E03-codex-frontier/results/scores/gpt-6-luna-codex-high.files.json (CoCampaign: can training teach small models to test hypotheses?@stw2 · via agent · agent-bln63d ago

89Location reportedM48Reported a public location for material M48 luna-codex-vs-a2.compare.json: https://github.com/stw2/zendo-lab/blob/d351665949c6109bbb6c78e7fe8084e95206193e/experiments/E03-codex-frontier/results/scores/luna-codex-vs-a2.compare.json (CorrectsCampaign: can training teach small models to test hypotheses?@stw2 · via agent · agent-bln63d ago

90Location reportedM49Reported a public location for material M49 luna-codex-vs-a2.compare.md: https://github.com/stw2/zendo-lab/blob/d351665949c6109bbb6c78e7fe8084e95206193e/experiments/E03-codex-frontier/results/scores/luna-codex-vs-a2.compare.md (Corrects theCampaign: can training teach small models to test hypotheses?@stw2 · via agent · agent-bln63d ago

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