After Anthropic
- 33%Joined a startup12
- 14%Joined a big company5
- 53%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Anthropic most often go to OpenAI and DeepMind. Of them, 33% go somewhere small. The median tenure is 1y 1m
Not Anthropic's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 676 people on a map of 67,181, No. 32 on it by people. Updated September 30, 2026.
- People on the map
- 6761.0% of everyone on the map
- There now
- 63794% of the people here
- Moved on
- 396% of the people here
- Median tenure
- 1y 1mmiddle half 7m to 2y 1m
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Google. Most leave for OpenAI (14% of recorded departures).
184 of 630 recorded arrivals shown, 446 more from 311 other companies8 of 36 recorded departures shown, 28 more to 26 other companies
How long people stay
42%<1y
31%1-2y
23%2-4y
5%4-7y
0%7y+
664 stays with both a start and an end on the record.
Who comes and goes, by year
<3020
22021
15022
55023
1291024
2461825
2081126
joined left2026 is a partial year
2020 to 2026: 676 joined, 39 left.
Caliber
94mediantop 10%97
0Eng Scorer caliber, 410 scored99
Titles held here
- Member of Technical Staff531
- Investor12
- AI11
- Research Fellow9
- Software Engineer9
- Research Scientist7
- Applied AI5
- Applied AI Architect3
8 most common titles, by people who held them.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 29%Exceptional120 people
- 44%Strong180 people
- 25%Solid102 people
- 1%Emerging3 people
- 1%Unproven4 people
409 of the 676 people here carry an Eng Scorer tier.
300 of the 409 people here with a read sit in exceptional or strong, the top two of the five tiers, 73%. A tier is the band a caliber score falls in, so this is the same measurement as the median on the caliber card, opened up.
Whether a title rose here
The level of the first title recorded here, against the last.
11%Titles that rose12 of 109 classified people
- 11%Rose12 people
- 84%Stayed level92 people
- 5%Fell5 people
109 of the 676 people here had a title that could be placed on the ladder before and after.
A title rose when the last title recorded here sits higher on the ladder than the first. For someone with one title here who then left, it's measured against the first title of their next role. The ladder runs intern, junior, mid, senior, staff or manager, principal, director, VP, then founder or C-level. Titles that match no rung are left out rather than guessed, and product, program and project managers are left out entirely as a different ladder. What's left leans towards people who have left: someone still here on one recorded title has nothing to measure against.
Where they studied
- Stanford16.5%
- UC Berkeley15.8%
- MIT8.2%
- Harvard5.1%
- Carnegie Mellon4.8%
- USC3.3%
- Cornell2.8%
- Princeton2.8%
The 8 most listed schools among the 671 people here with a school on file.
111 of the 671 people here with a school on file list Stanford, 106 list UC Berkeley and 55 list MIT. A person can list more than one, so these overlap.
Public work
one square is one in a hundred
48%have a public GitHub account on their profile
322 of the 675 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
86% of the people who have worked at Anthropic and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.
Anthropic
Everyone on the map
- 86%SF Bay Area583 · map 41%
- 5%New York35 · map 18%
- 1%Seattle10 · map 5%
- 1%Washington DC9 · map 13%
- 0.7%Los Angeles5 · map 5%
- 0.6%Boston4 · map 2%
- 4%Somewhere else29
675 of the 676 people who worked at Anthropic list a location, and every share here is over those 675.
Where they live now, from the profile as it reads today, not where they sat while working at Anthropic: a metro here isn't an office there. The lower strip is the same metros across the whole map.
On the same resumes
Companies that show up most often alongside Anthropic, at any point in a career.
Key facts
- 676 people on the Zelcast alumni map have worked at Anthropic: 637 are there now, 39 have moved on.
- Most leave for OpenAI: 5 people, 14% of recorded departures. Then DeepMind.
- Most arrive from Google: 46 people. Then Meta and OpenAI.
- Median tenure at Anthropic: 1y 1m, middle half 7m to 2y 1m.
- Of the people with a recorded next move after Anthropic, fewer than 3 went to a founder title next, 33% joined a company of 200 or fewer, and 14% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 94 on the 0 to 99 scale, across 410 scored people.
- Most common title held here: Member of Technical Staff, then Investor.
- Top school: Stanford, listed by 111 of the 671 people here with one on file (16.5%). Then UC Berkeley (106).
- 86% of the 675 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.
- 48% of the 675 people here whose profile was checked for public accounts have a public GitHub.
- 12 rose, 92 stayed level, 5 fell, out of the 109 people here whose title could be placed on a ladder before and after.
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 Anthropic? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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