Artificial Analysis tests GPT-6.1 Terra: 6-point intelligence gain at under a third of the cost per task

Artificial Analysis 评测 GPT-6.1 Terra：以不到三分之一成本推进性价比前沿

Artificial Analysis found GPT-6.1 Terra scores 6 points higher than GPT-5.6 Terra on its intelligence index at the highest reasoning effort, while cost per task falls from $1.40 to $0.40. At low and medium reasoning effort the model sits on the intelligence-cost Pareto frontier.

Why it matters: A 6-point intelligence gain with cost per task down to $0.40 changes the price of running hard reasoning work.