GPT-6.1 Terra matches GPT-6 Astra at 57.6% on Agents' Last Exam at 1/16.6x cost
aakashgupta · x · 2026-10-27
Citing OpenAI's own numbers, aakashgupta notes GPT-6.1 Terra and GPT-6 Astra both score 57.6% on Agents' Last Exam at medium effort, but Terra costs $0.29 per task vs $4.82 for Astra — a 16.6x gap. For the most complex coding tasks, however, OpenAI's page says GPT-6.1 Sol and GPT-6 Astra remain the better choice.
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