Quality control for what AI learns from

Break the loop before it breaks your model.

AI learns from the internet. More and more of the internet is written by AI. We check that what your model learns from is still human, still clean and still whole.

Generation 00Variance 1.00Tails retained 0/9
Scroll to run the loop ↓
Illustration · not measured data

01Why this exists

AI is starting to learn from itself. That's a problem.

Every AI model is built by reading an enormous amount of human work: books, articles, code, conversations. Now a growing share of what's online is written by AI. So the next model learns partly from the last one. It's a copy of a copy, and copies lose detail.

What gets lost firstIllustration

Human originalMy grandmother's rasam, soured with tamarind from the Madurai market

Copy 1Grandmother's rasam with tamarind

Copy 2A traditional tamarind soup

Copy 3A delicious soup

Human originalHaar: what east-coast Scots call the cold sea fog that rolls in off the North Sea

Copy 1Haar is a Scottish word for sea fog

Copy 2A Scottish word for fog

Copy 3Fog

Human originalHonestly? The sequel is worse, and I will die on this hill.

Copy 1The sequel is not as good as the original.

Copy 2The sequel received mixed reviews.

Copy 3Many people enjoyed the film.

Nothing in the last column is false. That's the trouble. It's just emptier, and the emptiness is hard to measure. A model trained this way doesn't break. It slowly forgets what made it useful.

  1. 01

    Copies lose the details first.

    The rare fact, the small language, the distinctive voice. A model trained on copies still sounds fluent. It's just blander, and more often wrong about the things few people know.

  2. 02

    It's hard to see from the inside.

    Standard tests check averages, and averages hold up. By the time anyone notices what went missing, the model has already shipped.

  3. 03

    No one checks from the outside.

    Labs grade their own models. Data vendors grade their own data. There is no independent inspector for what AI learns from. Yet.

The technical name

Researchers call this model collapse. It isn't a crash. It's a slow drift toward the beige middle that standard evaluations, built around averages, barely register.

TAILTAIL
Fig. 1 · Each generation trains on the last. The middle sharpens, the tails vanish. Illustration, not measured data.

What we do, in one sentence

Ouroboros is the independent inspector for what AI learns from. We test it, certify it and publish the scores.

Think of a food-safety lab for AI's diet. Your model is what it eats. We make sure the people building it, buying it and regulating it can see exactly what that is.

Why the name

“The serpent that eats its own tail.”

Ouroboros, from the Greek oura (tail) and boros (eating)

It is the oldest picture of a system feeding on its own output, which is how model collapse begins. In the old books it also stands for renewal. We work on the second meaning: a loop that keeps taking in fresh human signal instead of consuming itself.

02What we do

Test it. Certify it. Score it.

Three products, each answering a question a buyer, a regulator or your own team will eventually ask.
01

Ouroboros Antivenom

Adversarial data red-teaming

We try to break your data pipeline before anyone else can, safely and inside your own systems.

Antivenom is made by controlled exposure. So is a resilient pipeline. We test whether your ingestion, filtering, RLHF and evaluation stack holds against flooding and synthetic saturation, inside your environment and under your rules of engagement.

  • Findings report
  • Remediation plan
  • Retest
02

Ouroboros Seal

Human-data provenance certification

We certify that data is genuinely human-made, so the people who made it can prove it and charge for it.

The Unbroken Ring: an audited chain of custody attesting that a dataset or archive is human-made, consented and uncontaminated. A mark publishers can carry into licensing, and buyers can check before they train.

  • Dataset audit
  • Certification mark
  • Annual renewal
03

OuroBench

Public slop-resistance benchmark

A public scoreboard for how well each AI model remembers the rare stuff.

The tails go first: rare facts, dialects, craft knowledge, a specific voice. OuroBench measures whether a model keeps them across versions. The public leaderboard is free. A private suite runs before you ship.

  • Public leaderboard
  • Private eval suite
  • Version-over-version diffs
Later

Molt · Continuous contamination monitoring that sheds bad data at intake.

The Coil · A public registry where seals, datasets and OuroBench scores live.

03How it works

An engagement is a loop that closes.

Scoped like a penetration test, run inside your walls, finished only when the fix holds.
  1. Step 01

    Scope

    We agree in writing on systems, data and rules of engagement. Nothing runs outside that line.

  2. Step 02

    Contained testing

    Testing runs inside your environment, on your infrastructure. Adversarial material is created there and destroyed there.

  3. Step 03

    Findings

    A plain report: what held, what gave way, what it would cost you and what to fix first.

  4. Step 04

    Retest

    After you remediate, we run it again. The loop closes when the fix holds.

04Who it's for

For anyone whose model is only as good as what it ate.

Model builders

Labs that want an outside read on their data before a release, and evidence to hand enterprise buyers.

Enterprises

Teams fine-tuning or running retrieval over internal corpora, where quiet contamination turns into a regulated output.

Governments

Safety institutes and procurement offices that need a neutral, repeatable evaluation.

Publishers

Archives and rights-holders who want to show their work is human-made, and price it that way.

05Why now

A shift happening under the surface.

Today, the quality of training data is a research topic. Within a few years it will be a line item in every model budget, every procurement checklist and every licensing deal. The independent checker gets built before that moment, not after.
01

The human supply is finite.

Researchers at Epoch AI have projected that AI training could use up the stock of quality public human text within this decade. What's left gets more valuable, and more worth protecting.

02

Synthetic content is now the cheap default.

Writing a million words used to take a million hours. Now it takes an afternoon. Every crawl, search index and company knowledge base is absorbing the difference.

03

The rules are arriving.

Europe's AI Act asks makers of general-purpose models to publish summaries of their training data. Summaries invite a question: who checked?

04

Human work is becoming an asset.

Publishers and creators are starting to license their work to AI companies. Proof that something was made by people makes it worth more, and puts value back with the people who made it.

The pattern

Every new layer of technology has eventually needed an independent checker. Auditors for company accounts. Underwriters Laboratories for electrical products. SOC 2 for cloud software. Training data is next.

06OuroBench

A public score for what models keep.

How much of the distribution's tail a model keeps after training on a contaminated web. Higher is better. Free to read, open in method, governed at arm's length.

OuroBench · leaderboard previewDemo data
#ModelScoreRare factsDialectsStyle rangeΔ prior
01Model A0.810.840.790.81+0.02
02Model B0.770.800.740.78+0.01
03Model C0.740.770.700.75−0.01
04Model D0.700.710.660.72+0.03
05Model E collapse flag0.600.660.520.61−0.12
06Model F0.580.600.550.58±0.00
07Model G0.500.540.470.50−0.02

Demo data · Model names and scores are invented placeholders to show the format. No real model has been measured.

07Where this goes

From a service to a standard.

We start where the money is today, paid testing, and use it to build the thing that compounds: a mark of trust that the whole market relies on.
  1. Stage 1

    Test

    Red-team engagements with model builders. Paid work that builds the know-how, the data and the first reference customers.

  2. Stage 2

    Certify

    The Seal becomes the mark buyers look for, like SOC 2 for cloud software. Publishers certify their archives to license them at a premium.

  3. Stage 3

    Register

    The Coil: a public registry of certified datasets and scores. More certified data brings more buyers, and more buyers bring more data.

  4. Stage 4

    Reference

    Regulators, insurers and procurement teams cite the standard. That's the point where an auditor becomes infrastructure.

Plan, not a promise · Stages and sequencing are illustrative

08Principles

An auditor is only worth its independence.

Neutral

No lab owns us.

We won't take investment or exclusivity that would let one customer grade another. The public benchmark is governed at arm's length.

Contained

Adversarial data never leaves the client.

We publish measurements, never methods. Test material stays inside your environment and is destroyed at the end of an engagement.

Public benefit

A Delaware public benefit corporation.

The purpose is written into the charter: the integrity and diversity of the human information commons.

09Why us

Built by people who measure what's rare.

Collapse hits the tails of the distribution first: the unusual, the specific, the exceptional. Finding and measuring the tails is the work this team comes from.
AN

Arvind Nagarajan

Founder & CEO

Arvind's work has centered on one question: how do you find and measure what's rare? He built an adaptive assessment designed to spot exceptional students that standard tests miss, which is work that lives in the tails, exactly where AI collapse hits first.

He's also a co-founder and operator in education, building institutions that grow human potential: the original source of every dataset these models depend on.

“I started by studying how AI could be made worse. I came out convinced the defense matters more. Someone has to protect the human signal these models live on.”

Founding CTO

Hiring

A technical co-founder with published work in data curation, robustness or model collapse, or who has led data integrity inside a major lab.

An auditor is only as credible as its technical name. This seat comes first.

Start a conversation

10Contact

Request an audit.

Tell us what you train on and what you ship. We'll reply with a proposed scope, not a pitch deck.