{"i":4,"slug":"hard-model-head-to-head","chart":{"id":"hard-h2h-cost-per-pass","title":"List-price cost per strict pass on hard tasks (calculation)","subtitle":"All calls in a configuration, failures and format misses included, divided by its strict passes","kind":"bar","unit":"usd","yLabel":"USD per strict pass","series":[{"name":"Cost per strict pass","points":{"$k":["label","value","n","highlight"],"$r":[["Claude Sonnet 5.5 · Claude Code",0.01435,24,true],["GPT-6.1 Sol (high) · Codex CLI",0.01514,16,false],["GPT-6.1 Sol (medium) · Codex CLI",0.02564,16,false],["Claude Opus 5.5 · Claude Code",0.02824,24,false],["Claude Opus 5.5 (high) · Claude Code",0.03337,24,false],["Claude Haiku 4.5 · Claude Code",0.0672,24,false],["Claude Fable 5.1 · Claude Code",0.09331,24,false]]}}],"note":"Calculation, not a bill: reported tokens × list price; the calls ran on a flat subscription. A failed call still costs, so a lower pass rate raises the cost per pass. Highlighted bars are on the quality-vs-cost frontier.","sourceIds":["agent-provider-h2h-hard","calc-repricing","price-anthropic","price-openai"]}}