Sources: tech lobbyists say that David Sacks' push for an EO blocking state AI laws undercut their efforts to craft a permanent, bipartisan federal solution (Politico)

Summary

— We estimate that, on our tasks, Claude Opus 4.5 has a 50%-time horizon of around 4 hrs 49 mins (95% confidence interval of 1 hr 49 mins to 20 hrs 25 mins). While we're still working through evaluations for other recent models, this is our highest published time horizon to date. [image]