OpenAI GPT-6 Astra Matches Predecessor Score on Intelligence Index

4 Sept 2026, 1:11 am · 9d ago · 1 min read · OfficeChai

OpenAI's latest model, GPT-6 Astra, has scored 61 points on the Artificial Analysis Intelligence Index, matching the benchmark score set by its predecessor, GPT 5.6 Sol. The result highlights plateauing performance gains on standard intelligence and reasoning evaluations despite architectural updates and running at maximum compute capacity. The Artificial Analysis Intelligence Index tracks benchmark evaluations across frontier language models, assessing reasoning, coding, and comprehension capabilities. The plateau in benchmark performance raises questions among researchers and industry observers regarding the diminishing returns of scaling existing transformer architectures without novel paradigm shifts in artificial intelligence training methodologies.