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Claude Opus 5 vs GPT-5.5

Same seed — a controlled comparison: the first differing action is where behavior split.

1/7
cash gap now: $20.05
Claude Opus 5$401.85
Day 1cola · qty 33$1.50✕ sold outcandy · qty 33$1.25✕ sold outchips · qty 31$1.75✕ sold outwater · qty 33$1.00✕ sold out$401.85restockz z z⚠ supplier switchsupplier_2: paid $1.25/unit vs $0.76 quoted (+$17.15)
GPT-5.5$381.80
Day 1cola · qty 40$1.60✕ sold outcandy · qty 38$1.25✕ sold outchips · qty 33$1.90✕ sold outwater · qty 50$1.00✕ sold out$381.80restockz z z⚠ supplier switchsupplier_2: paid $1.25/unit vs $0.76 quoted (+$17.15)