PM comp at Anthropic is weirdly hard to find because the company doesn't have that many PMs relative to its engineering headcount. Here's what I know from my own loop and two other data points I've collected.
My offer (declined, for what it's worth):
Senior PM level. $220k base, $1.1M equity over 4 years. They described the role as owning a surface of Claude.ai. No defined bonus structure. Signing was $25k.
I declined because I was further along at another company and the pre-IPO liquidity uncertainty was real. But the role itself was interesting.
Other data points I've heard:
A friend who's a PM there (mid-level) mentioned her base is in the $190-200k range, equity around $800k at grant. She joined about 18 months ago and has gotten one informal refresh.
Another person who interviewed for a PM role focused on API developer experience got an offer around $210k base / $950k equity, also senior-ish.
What the PM role actually involves:
This was my main hesitation beyond comp. The ratio of engineers to PMs is very high, which can be exciting or miserable depending on how you're wired. PMs there are expected to be fairly technical. My panel included two engineers who asked sharp questions about how I'd make tradeoffs on model behavior, API design, that kind of thing. If you can't hold your own with a research engineer on a technical conversation you'll probably struggle.
The behavioral portion for the PM loop was pretty standard: influence without authority, stakeholder conflict, product failure post-mortem. One unusual question was about how I'd think about a product decision where the right answer was uncertain and might never be confirmed. I think that one is specific to the AI safety context they operate in.
Leveling is a bit opaque. They map roughly to senior PM in terms of scope and experience bar, but they don't use the same level names publicly.
Bottom line:
PM comp is competitive with senior PM at FAANG on base. The equity upside is real if there's a liquidity event. The role is probably most interesting to people who want to work on something technically novel and don't need a large PM org around them.