# Guides to AI training data

URL: https://aidataforsale.com/learn
Publisher: AI Data For Sale (Marketing Signals Ltd)
Updated: 2026-11-10

Guides on selling and buying AI training data, rights and law, privacy, pricing and the market.

- [How to sell data to AI companies](https://aidataforsale.com/learn/how-to-sell-data-to-ai-companies): AI companies license data they cannot get from the open web: private, well-structured records from real work, with clear rights.
- [Is it legal to sell company data for AI training?](https://aidataforsale.com/learn/is-selling-company-data-legal): No single US law bans companies from licensing their data for AI training, but privacy, sector, contract and labor rules all apply.
- [De-identifying data for AI training](https://aidataforsale.com/learn/de-identification-for-ai-training-data): De-identification removes or replaces information that identifies people, so data can be licensed with lower privacy risk.
- [How to value a dataset for AI training](https://aidataforsale.com/learn/how-to-value-a-dataset): AI training data has no list price. Value is set by how scarce, useful and legally clean the data is for a specific buyer.
- [Selling data from a closed or closing company](https://aidataforsale.com/learn/selling-data-from-a-closed-company): AI labs and data vendors are buying workspace data and code from companies that have shut down.
- [Questions to ask an AI data buyer](https://aidataforsale.com/learn/questions-to-ask-an-ai-data-buyer): Ask who exactly will hold a copy of your data, and whether that includes affiliates, contractors or later customers.
- [How to buy AI training data](https://aidataforsale.com/learn/buying-ai-training-data): Start with a written data request that names the modality, domain, volume, labels and rights you need.
- [How to write a training data request](https://aidataforsale.com/learn/how-to-write-a-training-data-request): A good data request states what the model should learn, not just what files you want.
- [How to evaluate a training data sample](https://aidataforsale.com/learn/how-to-evaluate-a-data-sample): A sample is only useful if it was drawn at random from the full set, not hand-picked.
- [Data provenance explained](https://aidataforsale.com/learn/data-provenance-explained): Data provenance is the documented history of a dataset: who created it, how it was collected, under what terms, and what was done to it.
- [How to build a data manifest](https://aidataforsale.com/learn/how-to-build-a-data-manifest): A data manifest is an inventory of a dataset that a buyer can evaluate without seeing the data itself.
- [What goes in an AI data license agreement](https://aidataforsale.com/learn/ai-data-license-agreement): An AI data license grants a named buyer defined rights to use a copy of data, for set purposes, on set terms.
- [Exclusive vs non-exclusive data licenses](https://aidataforsale.com/learn/exclusive-vs-non-exclusive-data-licenses): A non-exclusive license lets the seller license the same data to other buyers; an exclusive license does not.
- [How AI training data is priced](https://aidataforsale.com/learn/ai-training-data-prices): AI data is priced per unit, as a flat fee, as a revenue share, or as milestones tied to delivery and acceptance.
- [AI data brokers vs data marketplaces](https://aidataforsale.com/learn/ai-data-broker-vs-marketplace): A marketplace lists datasets for buyers to browse; a broker finds the right counterparty and helps structure a direct deal.
- [Synthetic vs licensed training data](https://aidataforsale.com/learn/synthetic-vs-licensed-training-data): Synthetic data is generated by models or simulations; licensed data comes from real people and systems.
- [What is AI training data?](https://aidataforsale.com/learn/what-is-ai-training-data): AI training data is the examples a model learns from: text, images, audio, video, code, actions and human judgments.