Artificial Analysis Pareto frontier: GPT-6 Luna cheapest per task at $0.22

Among models with a Hallucination-Gated All-Pass Rate above 0%, GPT-6 Luna (max), GPT-6.1 Sol (max), Muse Spark 1.3 (max), and Grok 4.7 (xhigh) set the Pareto frontier for score versus cost per task.

GPT-6 Luna (max) is the cheapest at about $0.22 per task, scoring 3.3%, while Grok 4.7 (xhigh) leads at about $9.50 per task and Muse Spark 1.3 (max) costs about $4.20. The three Claude models cost about $18 to $22 per task.