Pareto B Verified

RL environment company · Multi-Domain

Domains
Multi-Domain Tool Use
On X
@pareto_ai ↗
Funding
$5.1M raised · rounds and investors
Tier
B why
Snapshot

Open environment ↗pareto.ai

What Pareto does

Pareto supplies expert human data for training frontier AI models through a global network of specialists, and publishes research benchmarks such as LEAPBench.

Leads with
Health and bio
Based in
San Francisco, USA
Team
26-50

What Pareto sells

Read from Pareto's own website, checked October 12, 2026: the line that puts it in each category.

RL environments expanding into

Data

  • Human data

    “Human data improves models, models help humans do more sophisticated things, which in turn improves models”
    pareto.ai ↗

Domains Pareto covers

Benchmarks Pareto built or runs

Pareto competitors and alternatives

The companies that sell the most of the same things in the same domains, and what they share with Pareto.

Every RL environment company on the landscape map →

Tier B

B

Growing: 11 to 50 people, or $3M+ raised.

How much stands behind a tier: usage, who backs it, a confirmed line from its own site or paper, and a clear read on X. High with three of the four, medium with two, low otherwise.

  • team 26-50
  • raised $5M
  • investors: Fearless Fund, Jonathan Swanson, Liquid2 Ventures
  • in curated RL directories (3 pts)

On X · poorly regarded, low buzz, from 3 posts about Pareto in the last month

A widely engaged post claims Pareto AI shut down; otherwise it appears as a gig-work option for annotators and a small player in data-vendor lists.

@remotemondays ↗ · @AbrahamOkah2 ↗ · @LiEvancool ↗

How we got to tier B
  1. Adoption: team 26-50; raised $5M; investors: Fearless Fund, Jonathan Swanson, Liquid2 Ventures. Tier B.
  2. On X: poorly regarded, low buzz. “A widely engaged post claims Pareto AI shut down; otherwise it appears as a gig-work option for annotators and a small player in data-vendor lists.” No move.
  3. In curated RL directories: 3 points, a floor of none.
  4. Confirmed: a line from its own site or paper places it.

A clear view on X moves a tier one step up or down; most entries don't move. How tiers work.

Pareto funding

Raised
$5.1Mstated total
Latest round
Seed $4.5M2021-11

Rounds

  • Seed · $4.5M · 2021-11
    today announced $4.5 million in seed funding that it closed in November.
    1. Read: “today announced $4.5 million in seed funding that it closed in November.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. The quote states the amount; no lead is named in it
    4. Also named by 1 other page read
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/
  • Pre-seed · $600K · 2020
    The company raised $600,000 in pre-seed funding in 2020
    1. Read: “The company raised $600,000 in pre-seed funding in 2020”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. The quote states the amount; no lead is named in it
    4. Also named by 1 other page read
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/

Funds 6

6 more, low confidence
  • Fearless Fund
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/
  • Liquid2 Ventures
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/
  • MaC Venture Capital
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/
  • Seabed VC
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/
  • Slope Agency
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/
  • Soma Capital
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/

Angels 1

1 more, low confidence
  • Jonathan Swanson
    Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.
    1. Read: “Investors include MaC Venture Capital, Seabed VC, Soma Capital, Fearless Fund, Liquid2 Ventures, Slope Agency and Thumbtack founder Jonathan Swanson.”
    2. Found word for word on a page found by search: techcrunch.com/2022/03/14/pareto-seed-lead-generation-data
    3. No other page or directory names it yet
    techcrunch.com/2022/03/14/pareto-seed-lead-generation-data/

Every figure is quoted from its own site, its accelerator or a funding announcement; a round's amount and lead appear only when its quote states them. Startup databases are never used as evidence. Checked 2026-10-11. How funding is checked.

Training methods

Methods Pareto uses, offers or builds for, with public evidence: its own website says so, or two independent sites do.

  • GRPO Group Relative Policy Optimization On its own website

    “To explore whether learning efficiency is a trainable property, we fine-tuned Llama 3.1 8B-IT using offline GRPO on more than 5,000 trajectories from 29 biology training tasks, with the cumulative trajectory metric as the reward target. The resulting model demonstrated improved learning efficiency on 14 of 21 held-out tasks, which…”

    pareto.ai

Where Pareto sits

Its domain on the map, live. Hover a logo for its name; click to open it. Open it on the full map

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Latest from Pareto on X

@pareto_ai ↗

More Multi-Domain RL environments

Multi-Domain AI benchmarks

Next: browse all environments. Entry from the RL Research daily scrape of public sources, 2026-11-05 snapshot.