Same Model, 13.3% to 38.3%

Two API settings. Same model. Same benchmark. Same task set. 13.3% to 38.3%, using one sixth the output tokens. OpenAI published that result about GPT-5.6 Sol on ARC-AGI-3, and it is the cleanest natural experiment the field has produced on a question I have been arguing from first principles for a year. Nothing about the model changed. Everything that changed was around it. The score is Relative…