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1{2 "name": "medium-v1",3 "provider": "anthropic",4 "model": "claude-opus-5-5",5 "heldout_models": ["claude-sonnet-5-5", "claude-haiku-5-5"],6 "variants": ["A", "B", "C", "D", "E"],7 "samples_per_variant": {"A": 1, "B": 1, "C": 1, "D": 1, "E": 2},8 "max_tokens": 1500,9 "effort": "low",10 "mode": "batch",11 "concurrency": 4,12 "budget_usd_ceiling": 600.0,13 "allocation": {"train": 14000, "val": 2000, "test": 3000, "heldout_domain": 500, "heldout_period": 500},14 "notes": "Medium stage (Gate E): 20 000 passages x 6 generations on corpus medium_v1, stratified by discipline x section role within each split. REQUIRES EXPLICIT AUTHOR APPROVAL BEFORE --live. Ceiling is a hard stop. Alternative: claude-sonnet-5-5 at about half the cost."15}16