Machine Heart

Jul 30, 2026 · Artificial Intelligence

How Two Settings Tripled GPT‑5.6 Sol’s ARC‑AGI‑3 Score

OpenAI found that enabling retained reasoning and context compression in the GPT‑5.6 Sol API raised its ARC‑AGI‑3 benchmark score from 13.3% to 38.3%—a three‑fold increase—while also cutting token usage by about six times, highlighting how evaluation frameworks and settings can mask a model’s true capabilities.