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Braintrust, which helps companies evaluate and monitor their AI tools' performance, raised an $80M Series B led by Iconiq at an $800M post-money valuation

Braintrust, a startup building AI observability and evaluation tools, raised an $80 million Series B led by Iconiq

Axios Chris Metinko

Discussion

  • @mikeknoop Mike Knoop on x
    Zapier is a heavy @braintrust user. What a nice note from the head of customer service!
  • @rrhoover Ryan Hoover on x
    Big fan of surprising customers with a handwritten letter. We used to send 100s of these to early Product Hunt community members. (btw, check out Braintrust!)
  • @shreyanj98 Shreyan Jain on x
    I literally do not know a single person more customer-obsessed than @ankrgyl. It's a privilege to continue to get to support him and rest of @braintrust team as they build the infrastructure needed to deploy AI reliably at scale into the real world.
  • @laurynmotamedi Lauryn Motamedi on x
    So grateful for @braintrust at @NotionHQ & excited for @ankrgyl and team on this huge milestone!! 🚀
  • @sarahzengy Sarah Zeng on x
    Grateful to be building with @ankrgyl and thankful for the team, our customers, and everyone who believed in @braintrust early. AI is in production everywhere. It's no longer an experiment; teams are serving millions of users with AI-powered products. And paradoxically,
  • @saammotamedi Saam Motamedi on x
    Braintrust Today, Braintrust, the observability company for AI, announces an $80M Series B at an $800M valuation, led by Matt Jacobson at ICONIQ. I've known Ankur Goyal @ankrgyl, founder and CEO of @braintrust, for nearly a decade and wanted to work with him from the day we [imag…
  • @davidtsong David on x
    Braintrust is still so underrated for building great AI apps. Saw they released a Cursor and Claude Code integration this month too 👀
  • @a16z @a16z on x
    .@braintrust is building the infrastructure for production AI. We're very excited to be backing their Series B. CEO Ankur Goyal joined a16z's Martin Casado to cover how systems engineering stacks up against the bitter lesson, why Chinese models are gaining ground faster than [vid…
  • @eladgil Elad Gil on x
    🔥 at this point the default choice for AI evals + more
  • @iconiqcapital @iconiqcapital on x
    Major shifts in software create a new observability challenge. Distributed systems needed monitoring. Cloud-native apps gave rise to modern observability. We believe AI is now at that same inflection point. As AI moves into production, our ability to evaluate and observe it [imag…
  • @alanaagoyal Alana Goyal on x
    watching @braintrust operate over the last 2.5 years has been a privilege, and seeing the amazing products their customers have built even more so excited to be quadrupling down in this round 😊
  • @ankrgyl Ankur Goyal on x
    We sent this note to our customers to let them know that Braintrust has raised a new round of funding, and thank them for their support. While the money is exciting, our focus hasn't changed: we're building Braintrust to help our customers ship quality AI products. In 2026, AI [i…
  • @braintrust @braintrust on x
    Braintrust has raised an $80M Series B. We're building the infrastructure that helps teams measure, evaluate, and improve their AI products. Don't take our word for it. Hear how @NotionHQ, @Vercel, @Navan, and @billcom use Braintrust to ship quality AI. [video]