Andreessen Horowitz investments in AI data, RL environments and evals

Fund · a16z.com ↗

Companies
3
Led a round in
3
What they sell
RL environments 2

Companies Andreessen Horowitz backs

  • Deeptune A Verified Acquired by Mercor

    Led a round · led its Series A ($43M), 2026-03 · sells RL environments

    Today, we're announcing our $43 million Series A, led by Andreessen Horowitz with participation from 776, Abstract Ventures, and Inspired Capital
    1. Read: “Today, we're announcing our $43 million Series A, led by Andreessen Horowitz with participation from 776, Abstract Ventures, and Inspired Capital”
    2. Found word for word on its own site: deeptune.com/blog/series-a
    3. Also named by 3 other pages read and a curated directory
    deeptune.com/blog/series-a/
  • Preference Model B

    Led a round · led its Seed ($16M), 2026-10 · sells RL environments

    we're backed by $16M in seed funding led by a16z, with participation from SignalFire, South Park Commons, Scale Angel Group
    1. Read: “we're backed by $16M in seed funding led by a16z, with participation from SignalFire, South Park Commons, Scale Angel Group”
    2. Found word for word on its own site: preferencemodel.com/blog/building-rl-environments-for-superintelligence
    3. Also named by 2 other pages read
    preferencemodel.com/blog/building-rl-environments-for-superintelligenc…
  • Vals AI A

    Led a round · led its Series A ($40M), 2026-08

    Today we’re announcing our $40M Series A at a $400M valuation, led by a16z, with participation from existing investors 8VC, Pear VC, and BloombergBeta and new investors HRT Ventures and Next Ladder Ventures.
    1. Read: “Today we’re announcing our $40M Series A at a $400M valuation, led by a16z, with participation from existing investors 8VC, Pear VC, and BloombergBeta and new investors HRT Ventures and Next Ladder Ventures.”
    2. Found word for word on its own site: vals.ai/blogs/series-a
    3. Also named by 2 other pages read and a curated directory
    vals.ai/blogs/series-a
1 more, low confidence
  • Runloop B

    Invested

    Andreessen Horowitz is also listed on the company's cap table.
    1. Read: “Andreessen Horowitz is also listed on the company's cap table.”
    2. Found word for word on a page found by search: venturecapitaltracker.com/startup/runloop
    3. No other page or directory names it yet
    venturecapitaltracker.com/startup/runloop/

Every investment here is quoted from the company's own site, its accelerator or a funding announcement, with its confidence and the steps behind it; startup databases are never used. How investments are checked · all investors.