Techmeme
December 21, 2025, 11:10 PM

Top News

Joe Rivano Barros / Mission Local:
Waymo says it temporarily suspended its ride-hailing service in San Francisco during a citywide blackout, as downed traffic lights appeared to halt its vehicles  —  Waymo said Saturday that it was stopping service across San Francisco after numerous online videos showed its autonomous vehicles …
Mitchell Peters / Billboard:
John Sakellariadis / Politico:
Sources: DHS is investigating whether 6 staffers misled CISA's acting director into taking a polygraph that he failed, compounding instability at the agency  —  The incident this July and the subsequent fallout — which has not been reported before — have angered career staff …
@metr_evals:
METR: Claude Opus 4.5 has a 50% task completion time horizon of about 4 hours and 49 minutes, more than double that of Claude Opus 4 released earlier this year  —  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]
Kashmir Hill / New York Times:
Some experts in the human-computer interaction field say making AI chatbots act humanlike creates cognitive dissonance for users over how much to trust them  —  I first noticed how charming ChatGPT could be last year when I turned all my decision-making over to generative A.I. for a week.

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Earlier Picks

April Roach / CNBC:
Business Insider:
Isabelle Bousquette / Wall Street Journal:
Mariella Moon / Engadget: