Dario Amodei has worked on AI for the last twelve years.

Judged as of 2025-06-05, against twelve years, which means starting AI work around 2013. True: his documented career shows him working on AI or machine learning continuously since 2012–2014 (within about a year of twelve years), for example through his Stanford postdoc, Baidu, Google Brain, OpenAI and Anthropic. Mostly true: his AI work began 2 years earlier or later than twelve years implies (about 2011 or 2015). Mixed: the start of his AI work is ambiguous, for example computational neuroscience that is only partly AI, so the figure is off by about 3 years depending on what counts. Mostly false: his documented AI work began more than 3 years later than claimed, for example 2016 or later. False: the record shows he had worked on AI for far fewer years, roughly half that or less.

Set before the research began.

1. E1 Dario Amodei - Wikipedia Wikipedia · 12 July 2023

   “From 2014 to 2016, he worked on machine learning at Baidu and Google Brain.”

2. E2 The Making Of Dario Amodei Big Technology · 29 July 2025

   “He had an impressive background, but his background, from our perspective, was in biology. It was not in machine learning,”

3. E3 The Making Of Dario Amodei Big Technology · 29 July 2025

   “Amodei joined Baidu in November 2014.”

4. E4 Dario Amodei archetypes.fyi (Founder Dossier) · 1 January 2026

   “After a postdoctoral position at Stanford applying machine learning to biomedical data, Amodei joined Baidu in November 2014,”

E1 and E3 date his clearly documented machine-learning work to Baidu, which he joined in November 2014. That gives about 10.5 years by June 2025, not the roughly twelve claimed. E4 says his earlier Stanford postdoc applied machine learning to biomedical data, but it gives no dates for it. E2 quotes a view that, "from our perspective", his background was in biology rather than machine learning. The documented start falls between one and two years later than twelve years implies, which fits the "mostly true" band better than "true".