Zelcastalumni map

People who leave Thinking Machines Lab most often go to OpenAI. The median tenure is 9m

Not Thinking Machines Lab's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 49 people on a map of 67,181, No. 488 on it by people. Updated September 30, 2026.

People on the map
490.1% of everyone on the map
There now
4388% of the people here
Moved on
612% of the people here
Median tenure
9mmiddle half 6m to 1y 1m

Put Thinking Machines Lab side by side with another employer.

Came from, went to

Ribbon width is the number of people who made the move. Most arrive from OpenAI. Most leave for OpenAI (50% of recorded departures).

ThinkingMachines Lab46 in · 6 out
24 of 46 recorded arrivals shown, 22 more from 17 other companies3 of 6 recorded departures shown, 3 more to 2 other companies

After Thinking Machines Lab

  • 100%Elsewhere

Shares of those who moved on, by their next stop.

How long people stay

67%<1y
33%1-2y
0%2-4y
0%4-7y
0%7y+
9m median tenuremiddle half 6m to 1y 1m

49 stays with both a start and an end on the record.

Who comes and goes, by year

21
22
23
24
25
26
joined left2026 is a partial year

2021 to 2026: 49 joined, 6 left.

Caliber

Not enough scored profiles here yet (28).

Titles held here

  1. Member of Technical Staff45

1 most common titles, by people who held them.

Where they studied

  1. UC Berkeley34.0%
  2. Stanford17.0%
  3. Carnegie Mellon12.8%
  4. MIT12.8%
  5. Harvard10.6%
  6. Carnegie Mellon University - Integrated Innovation Institute6.4%

The 6 most listed schools among the 47 people here with a school on file.

16 of the 47 people here with a school on file list UC Berkeley, 8 list Stanford and 6 list Carnegie Mellon. A person can list more than one, so these overlap.

Public work

one square is one in a hundred
42%have a public GitHub account on their profile

20 of the 48 people here whose profile was checked for public accounts. An account the check missed reads the same as no account, so this is a floor.

31% is the median across the 857 companies that can show this figure.

Where they are now

92% of the people who have worked at Thinking Machines Lab and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.

Thinking Machines Lab
Everyone on the map
  • 92%SF Bay Area44 · map 41%
  • 8%Somewhere else4

48 of the 49 people who worked at Thinking Machines Lab list a location, and every share here is over those 48.

Where they live now, from the profile as it reads today, not where they sat while working at Thinking Machines Lab: a metro here isn't an office there. The lower strip is the same metros across the whole map.

Key facts

  • 49 people on the Zelcast alumni map have worked at Thinking Machines Lab: 43 are there now, 6 have moved on.
  • Most leave for OpenAI: 3 people, 50% of recorded departures.
  • Most arrive from OpenAI: 9 people. Then Meta and xAI.
  • Median tenure at Thinking Machines Lab: 9m, middle half 6m to 1y 1m.
  • Of the people with a recorded next move after Thinking Machines Lab, fewer than 3 went to a founder title next, fewer than 3 joined a company of 200 or fewer, and fewer than 3 joined one of 10,000 or more.
  • Most common title held here: Member of Technical Staff.
  • Top school: UC Berkeley, listed by 16 of the 47 people here with one on file (34.0%). Then Stanford (8).
  • 92% of the 48 people here who list a location live in SF Bay Area today, against 41% across the map. Where they live now, not the office they sat in while they worked here.
  • 42% of the 48 people here whose profile was checked for public accounts have a public GitHub.

About this data: built from 352,028 jobs across 67,181 engineers in the Zelcast network and Eng Scorer reads, updated September 30, 2026. A move counts when the next role starts within 24 months of leaving. Companies under 20 people on the map aren't shown, and destinations under 3 people fold into the totals. Caliber is the Eng Scorer score.

Worked at Thinking Machines Lab? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.

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