Ben Alarie is the founder and CEO of Blue J, an AI tax research platform. He shares customer growth milestones after launching their generative AI product.
“We've gone from fewer than a hundred firms subscribing at the end of 20, 23 to like 1200 ish at the end of 20, 24. Now we're closing in on 3400 firms who are signed up to Bluejay and every day it's like we're adding about another 10 Firms, new logos every single day and it's wild.”
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More from Ben Alarie
Insight
Alarie: Horizontal LLMs generate flawed tax answers from stale web sources
“More commonly, there will be some of the materials that those systems find even on the open web are at a date anachronistic. The law has changed. There's been some statutory amendment or there's some new case law or, you know, some law firm wrote some guidance…”
Ben AlarieOct 20, 2025▶ 22:50He "kind of" had PMF for 8 years—until, after a rebuild, he raised $100M | Ben Alarie, Founder of... · PMF Show
AssertionPartly supported
Alarie: Blue J raised a $122M Series D in July 2025
“We raised a Series D round, and that closed in July of 2025. And it was a hundred and twenty two million USD.”
Ben AlarieOct 20, 2025▶ 1:45He "kind of" had PMF for 8 years—until, after a rebuild, he raised $100M | Ben Alarie, Founder of... · PMF Show
Insight
Alarie: Tax partners won't build startups due to high opportunity cost
“It might be a tax law partner in a big firm, but that's so extraordinarily unlikely because they already have clients that they're servicing. They're part of a partnership. They're kind of bought in. They kind of have dedicated their lives to that path. It cou…”
Ben AlarieOct 20, 2025▶ 9:50He "kind of" had PMF for 8 years—until, after a rebuild, he raised $100M | Ben Alarie, Founder of... · PMF Show
Insight
Alarie: Pure AI engineers won't solve tax research without deep domain mastery
“Might it be somebody who's more kind of pure tech, like an AI or machine learning background? And again, I thought, well, probably not because they would need to know a lot more tax law than they do. It'd take them a decade to catch up to where I was in my und…”
Ben AlarieOct 20, 2025▶ 10:37He "kind of" had PMF for 8 years—until, after a rebuild, he raised $100M | Ben Alarie, Founder of... · PMF Show
AssertionSupported
Alarie: Blue J's early ML models predicted court rulings with over 90% accuracy
“So we built a bunch of these different predictive models, which performed extremely well, like better than we thought they could perform. And so we're predicting with better than 90% accuracy, how courts would resolve these kinds of cases.”
Ben AlarieOct 20, 2025▶ 14:53He "kind of" had PMF for 8 years—until, after a rebuild, he raised $100M | Ben Alarie, Founder of... · PMF Show
Insight
Alarie: Reliable legal research synthesis was impossible before LLMs
“The big move was retrieval augmented generation, where you kind of run a search. So you have a master corpus of all of the relevant tax research materials. You run an intelligent search, and you've got, like, really good vector embeddings, and you're chunking …”
Ben AlarieOct 20, 2025▶ 19:45He "kind of" had PMF for 8 years—until, after a rebuild, he raised $100M | Ben Alarie, Founder of... · PMF Show
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