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.

This robot solving a rubiks cube in 0.103 seconds is a little preview of what "AGI" really means

Good at fiction writing and surprisingly eager to do it, without the self-conscious Assistant breaking the fourth wall all the time. Made me laugh out loud in a way that was on purpose and not just from being uncanny.

I am learning that I am an unusual CEO in many ways. Some know that I still code on nights and weekends (github.com/lattner) despite a busy “day job”. As part of that, I care deeply about sw development as a profession, and what “AI anxiety” is doing to many early and experienced developers. IMO, AI is here to stay, super useful today for things, and will continue to improve… but is far from SWE job displacement. It is sad for me to see many talented people giving up hope and sabotaging their own career development because of a future that may not actually arrive! Please watch the video for a much more nuanced discussion about the issues involved, particularly if you are an early career engineer who wants to make a big impact on things!!