{"i":1,"slug":"swe-bench-opus-vs-sonnet","chart":{"id":"swebench-opus-sonnet-cost-per-attempt","title":"List-price cost per attempt (calculation)","subtitle":"Mean over the same 3 instances; notional cost from the platform price table","kind":"bar","unit":"usd","yLabel":"USD per attempt","viz":"CostBars","series":[{"name":"List-price cost per attempt","points":[{"label":"Claude Opus 5.5 (Agent, new build)","value":7.59,"n":3},{"label":"Claude Sonnet 5.5 (Agent, older builds)","value":2.88,"n":3}]}],"note":"Calculation, not an invoice: the platform price table at each run commit applied to the recorded tokens of subscription runs (Opus 5.5: $4 input, $20 output, $0.20 cache read per million tokens). Totals $22.76 vs $8.64: 2.6×, a ratio of two calculations.","sourceIds":["agent-swebench-opus","agent-swebench-c1","agent-swebench-c2","calc-repricing","price-anthropic"]}}