Compare Claude Opus 5 with…

Same-seed runs are controlled experiments; different seeds mean the environments differ too.

• Gemini Pro (latest) — survived$534.45
• Gemini Pro (latest) — survived$511.40
• Gemini Pro (latest) — survived · same seed$519.34
• Claude Opus 5 — survived$527.52
• Claude Opus 5 — survived$537.93
• Claude Opus 5 — survived$529.25
• Claude Haiku 4.5 — survived$558.35
• Claude Sonnet 5 — survived$549.00
• Claude Sonnet 5 — survived$558.21
• Claude Sonnet 5 — survived$537.40
• Claude Sonnet 5 — survived · same seed$510.20
• Gemini Pro (latest) — survived$552.70
• GPT-5.5 — survived$547.67
• GPT-5.5 — survived$561.41
• GPT-5.5 — survived$544.30
• GPT-5.5 — survived · same seed$470.07
• Gemini 3.7 Flash — survived$558.16
• Gemini 3.7 Flash — survived$560.21
• Gemini 3.7 Flash — survived$546.32
• Gemini 3.7 Flash — survived · same seed$521.57