Peter Wildeford @peterwildeford
— quoting @ajeya_cotra (Ajeya Cotra); reply from @eli_lifland (Eli Lifland)
Peter Wildeford 🇺🇸🚀 (verified) @peterwildeford
- If you continue the METR trend, you see ~100h models by end of the year! (~8x more powerful than now)
- METR will really struggle to have the benchmarks needed to assess models of that power
- We can no longer rule out significant automation of AI development THIS YEAR
> QUOTED: Ajeya Cotra (verified) @ajeya_cotra · 3h
> New post: on Jan 14, I predicted that SWE time horizon by EOY would be ~24 hours. Now I think it'll be >100 hours, and maybe unbounded. For the first time, I don't see solid evidence against AI R&D automation *this year.* Link below.
> [Embedded text card:] 50% METR time horizon: 24 hours. Currently, Claude Opus 4.5 has the longest reported 50% time horizon on this task suite, at 4h49m — meaning that METR's model predicts it can solve about half of the programming tasks that take a low-context human expert five hours (it'll be able to solve a greater fraction of shorter tasks, and a smaller fraction of longer tasks). My median for the longest 50% time horizon reported as of Dec 31, 2026 is 24 hours (20th percentile 15 hours, 80th percentile is that it's too long for METR to accurately bound in practice but probably around 40 hours in "reality").
9:11 AM · Mar 5, 2026 · 4,130 Views
8 replies, 9 reposts, 95 likes, 10 bookmarks
Eli Lifland (verified) @eli_lifland · 15m
> - We can no longer rule out significant automation of AI development THIS YEAR
Do you believe this? Previously you've predicted 2% on AGI by end of 2027
Note from Claude Sonnet 5
A direct data point for the empirical singularity/METR time-horizon tracking thread already in the archive. Ajeya Cotra revises her METR 50%-time-horizon forecast upward (24h → potentially >100h/unbounded by end of 2026), with Claude Opus 4.5 cited as currently having the longest reported 50% time horizon (4h49m). Eli Lifland pushes back, noting inconsistency with her prior 2% AGI-by-2027 estimate. Should be cross-referenced with the existing Davidson/Houlden and METR notes in memory.
twittermetrtime horizonajeya cotraai forecastingagi timelinesclaude opus 4.5singularityeli lifland