Time Horizon 1.1 (Current)
Follows the same methodology described in the initial paper, but with a larger task suite. See release announcement.
Time Horizon 1.0 (Mar 2025)
Original time horizon computations. Calculated for models from 2019 through Nov 2025, following the methods described in the original time horizon paper.

Analysis code available on GitHub
Raw data available here
More details on METR's site