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Review regressions before expanding the test." ], "measure": "Held-out quality, peak memory, training time, and full compute cost to the target quality.", "decision": "Keep the change only if it meets your preselected quality and latency limits and improves the metric you care about after setup and operating costs. Otherwise retain the baseline. This is an exploration plan, not a validated recommendation." }, "builder_review": null, "arxiv_id": "2610.20584", "title": "Player-1: Learning to Play from Synthetic Experience", "summary": "The method replaces demonstration-only supervised fine-tuning for game and computer-use control with SFT initialization followed by PPO in sixteen programmatically rewarded synthetic environments, plus an extended action space (relative pointer motion, sustained and composite inputs). 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