# Defined.ai

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

Defined.ai runs a marketplace for text, speech, image and video training data. How it works for buyers and sellers, the prices it has quoted, and alternatives.

An AI training data marketplace, formerly DefinedCrowd, that sells ready-made datasets and buys data from partners.

## In short

- Defined.ai sells text, speech, audio, image and video datasets, and invites organizations to sell data through it.
- Reuters reported it quoted $1 to $2 per image, $2 to $4 per short video and $100 to $300 per hour of longer film in 2024.
- It states ISO 27001, ISO 27701 and ISO 42001 certification.

## Profile

| Field | Detail |
| --- | --- |
| Type | AI data marketplace and collection vendor |
| Data types | Text, speech, audio, image and video |
| For sellers | Data Partner program; revenue terms not published |
| Prices reported | $1 to $2 per image; $2 to $4 per short video; $100 to $300 per hour of film; $0.001 per word of text (Reuters, 2024) |
| Certifications stated | ISO 27001, ISO 27701, ISO 42001 |

## What Defined.ai does

Defined.ai groups text, speech, audio, image and video datasets on one platform for buyers to find, evaluate and purchase. Organizations with data can sell datasets or packages through it, and it lists Data Partner and AI Service Supplier programs. It states ISO 27001 and ISO 27701 compliance and ISO 42001 certification ([Defined.ai](https://defined.ai/blog/data-marketplace-explainer)). Its site does not publish a revenue share for sellers.

## What it has said about prices

Reuters reported in 2024 that Defined.ai charged $1 to $2 per image, $2 to $4 per short-form video, $100 to $300 per hour of longer film and about $0.001 per word of text ([Reuters via The Star](https://www.thestar.com.my/tech/tech-news/2024/04/26/inside-big-techs-underground-race-to-buy-ai-training-data)). See every published figure on [AI data prices](https://aidataforsale.com/ai-data-prices).

## How it compares with a broker

A marketplace lists data for many buyers, usually on non-exclusive terms. A broker works one deal at a time, often for private data that should not be listed publicly, and can negotiate exclusivity. Read [broker vs marketplace](https://aidataforsale.com/learn/ai-data-broker-vs-marketplace).

## Things to check before you sign

- For sellers: the revenue share, payment timing and whether you can set a floor price.
- Whether the marketplace takes a copy of your data, and who it can sell it to.
- Exclusivity: listing on a marketplace usually means non-exclusive.
- For buyers: provenance documentation and consent records for each dataset.

## Alternatives and related companies

- [Defined.ai alternatives](https://aidataforsale.com/compare/defined-ai-alternatives)
- [Protege](https://aidataforsale.com/companies/protege)
- [Human Native (Cloudflare)](https://aidataforsale.com/companies/human-native)
- [AWS Data Exchange](https://aidataforsale.com/companies/aws-data-exchange)
- [Broker vs marketplace](https://aidataforsale.com/learn/ai-data-broker-vs-marketplace)
- [AI Data For Sale: how our brokerage works](https://aidataforsale.com/how-it-works)

## Questions

### How much does Defined.ai pay for data?

It does not publish seller terms. Its quoted selling prices in 2024 are on our [AI data prices](https://aidataforsale.com/ai-data-prices) page.

### Is Defined.ai the same as DefinedCrowd?

Yes. DefinedCrowd renamed itself Defined.ai.

## Sources

- [Defined.ai: AI data marketplace explainer](https://defined.ai/blog/data-marketplace-explainer)
- [Reuters via The Star: Inside Big Tech's underground race to buy AI training data (April 2024)](https://www.thestar.com.my/tech/tech-news/2024/04/26/inside-big-techs-underground-race-to-buy-ai-training-data)