“One of OpenAI’s best known researchers, Andrej Karpathy, co-lead on the new agent project, departs”
Our reading:
Andrej Karpathy, co-lead on OpenAI's agent project, left OpenAI in February 2024.
Assessment: Unresolved
What happened
Was it true for the period described?
Outcome: Unresolved
We checked, and the evidence so far doesn’t settle it.
Judged on a plain reading. They named no measure, so we used the reading a typical informed reader would take. It is spelled out under “How we judged it”.
Evidence up to . Checked .
Why
Karpathy’s February departure is supported. The searched records do not establish his claimed co-lead role. That missing evidence leaves the complete claim unresolved; it is not evidence that the role was false. The approximate timing does not count against Marcus.
Caveats
- The accessible decisive source is contemporaneous news reporting.
- The original Information report could not be read.
Evidence (1 item)
Supports the claim: TechCrunch,
he has left OpenAI.
Why it matters: Confirms departure, not co-leadership.
- Where
- Opening sentence
- Publisher
- TechCrunch
- Kind of source
- News report
- About events on
- Published
Probably right?
One AI thinks this is probably right, and the other says it’s too early to tell. The evidence isn’t conclusive, so the verdict above stays unresolved. It counts only when you pick Speculative under “How sure?”.
- Anthropic’s AI: TechCrunch's report from February 2024 confirms the main point: Karpathy left OpenAI in mid-February 2024. No source in the packet confirms or denies that he co-led the agent project, but that is a side detail.
How we judged it
- Kind of claim
- Observation
- Deadline
- None given. We don’t add one.
Where we had to interpret
- The checkable commitments are Karpathy’s departure and his shared leadership of OpenAI’s new agent project.
- Best known is a qualitative description of prominence, not an exact popularity ranking.
- The news roundup uses last two weeks approximately. The target is February 2024; a mid-February departure is not excluded by imposing a strict February 15 boundary.
- Working on assistants would not by itself establish co-leadership.
Right if: Reliable records establish both a February departure and shared leadership of the new agent project immediately before departure.
Wrong if: Reliable records establish that he did not depart in this period or that the stated project leadership role was incorrect.
We wrote this test after the outcome was known.
What would settle it
An attributable statement from Karpathy, OpenAI, a project colleague, or reliable reporting establishing his responsibilities immediately before departure.
We found 3 claims in this post. See them all.
Full record
Source and dates
Marcus on AI, The last two weeks at OpenAI, paragraph 4.
- Said
- We read the source
- live page, full text, public
- Evidence up to
- Checked
We read this wording on 2026-10-29. The post may have been edited after 2024-02-29.
Where it was said (1)
Said once in the posts we read.
: Marcus on AI, The last two weeks at OpenAI
One of OpenAI’s best known researchers, Andrej Karpathy, co-lead on the new agent project, departs
- Where
- paragraph 4
- Published
- 2024-02-29
- We read it
- , live page
- Access
- full text, public
History
Versions
- Current: Unresolved. Evidence up to 2026-10-28.
What happened to this record
PublishedBy us
Published after both AI reviews and the final check passed.
Held backBy us
A reviewer said our test wasn’t fair to what was actually said.