Some data points comparing GPT-6 Luna's performance on ARC-AGI-1 and 2 vs GPT-5.6 Luna: GPT-6 Luna used about 25% fewer reasoning tokens overall across public v1/v2 tasks and reasoning levels. Scores improved at some levels and declined at others. For example, across all v2 public tasks with max reasoning: - GPT-5.6 Luna scored 64.2%, averaging 152k reasoning tokens/task - GPT-6 Luna scored 61.8%, averaging 117k reasoning tokens/task On v1 public tasks at max, the score increased from 91.3%…

ARC Prize@arcprize3d ago

GPT-6 Luna from @OpenAI on ARC-AGI (Verified): - ARC-AGI-3: 0.19%, $241 (standard harness), 0.59%, $237 (provider adapter harness) - ARC-AGI-2: 59.3%, $0.062/task - ARC-AGI-1: 86.7%, $0.018/task GPT-6 Luna achieved similar scores to GPT-5.6 Luna at roughly 62% lower cost.