Acquire Rare, Compliant Training Data (EU AI Act)
For data teams in labs and annotators: why licensed and traceable data reduces your AI Act declaration burden — and where to find the rare.
Acquire Rare, Compliant Data
The EU AI Act Angle for Buyers
9 slides · swipe or use the arrowsThe Context
AI Has Exhausted Easy Web Data
Public text is largely absorbed. The frontier is now on the rare: expertise, the physical world, languages, specialized visuals.
The New Hidden Cost
AI Act Compliance
The European AI regulation mandates a summary of training data. Provenance is no longer optional; it's an obligation.
┌ Mayer Brown — EU AI Act template, 2025
The Key Asymmetry
Licensed vs. Scraped: Not the Same Burden
For scraped content, you must list the most voluminous domains (up to 10%, 5% for an SME). For licensed content: confirm the agreement and modality. Much lighter.
┌ Mayer Brown, 2025
What This Means for You
Clean Data Reduces Risk
- License Agreement = Proof of Access
- Traced Provenance = Traceability Chain
- Rights Reservation Respected = Fewer Disputes
The Litigation Context
Scraped Data is Increasingly Costly
Litigation around non-licensed data is multiplying (large settlements, ongoing lawsuits). Licensed-clean data de-risks the pipeline.
┌ IPWatchdog · Mayer Brown, 2025
Where the Rare Is
4 Under-served Modalities
- Verbalized Expert Reasoning
- Egocentric Video / Physical Gestures
- Rare Languages & Dialects + Sign Language
- Specialized Visuals (Medical, Defects, Biodiversity)
The Right Channel
Reaching the Holder, Properly
The rare is held by operational SMEs, not on marketplaces. A deal room with a mandate, NDA, and license connects the buyer to the holder compliantly.
Key Takeaways
Rare AND Compliant
First step: tell us what you're looking for.
- The rare is the new frontier for training
- Licensed-clean data lightens the AI Act burden
- Traced provenance de-risks your models
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The full guide
For data teams in labs and annotators, the equation has changed: easy public text is largely absorbed, and the frontier for training is now on the rare – verbalized expertise, physical world gestures, under-served languages, specialized visuals. Sourcing this rare data reveals a hidden cost: compliance.
The European AI regulation mandates a summary of training data, and the published template model reveals a decisive asymmetry (Mayer Brown analysis, 2025). For web-scraped content, you must document the most voluminous domains – up to the largest 10%, and 5% for an SME. For data licensed from a third party, it essentially suffices to confirm the existence of the agreement and the relevant modality. The declarative burden is therefore significantly lighter for licensed data than for scraped data. In addition, on the Generative AI side, there's an obligation to declare several categories of sources, respect rights reservations, and document the removal of illicit content: provenance becomes a compliance requirement.
Concretely, licensed and traceable data offers you three things: a license agreement that proves access, traced provenance that constitutes the traceability chain, and respect for rights reservation that reduces litigation risk. In a context where litigation around non-licensed data is multiplying – large settlements and ongoing lawsuits (IPWatchdog) – this de-risking has direct value.
The question remains where to find the rare, and how. This data is held by operational SMEs as a byproduct, not on data marketplaces. The right channel is a structured connection: a deal room with brokerage mandate, confidentiality agreement, and license, which connects the buyer to the holder compliantly. The first concrete step: tell us which modality and data profile you are looking for, so we can reach out to the holder.
Sources
- Mayer Brown — EU AI Act training-data summary template (2025-08)
- IPWatchdog — AI training data litigation & settlements (2025)
- Commission UE — AI Act (Règl. 2024/1689)
Educational content — not legal or financial advice. Figures carry their source and year.