On Long-Horizon-Terminal-Bench 2.0, 77 tasks across 13 domains with three hours allowed for each, the strongest of 15 frontier models tested, GPT-6-astra, resolved 37 tasks, followed by GPT-5.6-sol with 32, according to an October 2026 arXiv paper
Zongxia Li et al. reported in an October 2026 arXiv paper that GPT-6-astra resolved 37 tasks on Long-Horizon-Terminal-Bench 2.0, followed by GPT-5.6-sol with 32 tasks. This measured the number of tasks resolved by 15 frontier models on Long-Horizon-Terminal-Bench 2.0, which contains 77 tasks across 13 domains with three hours allowed for each.
Verified 2026-10-27
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