ARC-AGI

OpenAI has begun rolling out GPT-6 Astra, priced at $10/million input and $50/million output tokens to match Claude Fable. The model claims a 99.9% score on ARC-AGI 3 using a custom harness and leads on security and long-context benchmarks, though it trails Fable on general intelligence rankings.

Research organization METR has introduced the 'expenditure horizon,' a metric that pinpoints the exact budget at which an AI agent becomes cheaper than a human at solving the same problem. Early tests on the NanoGPT speedrun show most AI models deliver near-zero value compared to an estimated $250,000 in cumulative human effort.