# Defined.ai

URL: https://sellmydatatoai.net/data-buyers/defined-ai
Type: Data marketplace
Website: https://defined.ai/
Checked: November 2026

Defined.ai runs an AI data marketplace where enterprises buy or commission speech, text, image, video and multimodal training data, and where vetted partners can sell datasets. Its partnerships page says partners pass an ethical vetting process and only 30% are approved, and it does not publish revenue share, commission, exclusivity or payment timing for sellers.

## Key takeaways

- Defined.ai is a data marketplace.
- What it buys: Lists speech, text, image, video, music and sound effects, and multimodal datasets from partners.
- Size requirement: Not published. Partners pass an ethical vetting process, and Defined.ai says 30% are approved.
- Defined.ai does not publish its payout, exclusivity, fee to seller and payment timing.
- Facts checked on Defined.ai's own pages in November 2026.

## At a glance

- What it buys: Lists speech, text, image, video, music and sound effects, and multimodal datasets from partners
- Published payout: Not published
- Size requirement: Not published. Partners pass an ethical vetting process, and Defined.ai says 30% are approved
- Exclusivity: Not published
- Fee to seller: Not published
- Payment timing: Not published

## What is Defined.ai?

Defined.ai is an AI data marketplace where enterprises buy ready-made training datasets or commission new collection. Its homepage lists speech, text, image, video and multimodal data, plus annotation, data collection, model evaluation, conversational AI and machine translation services. It cites a crowd of more than 1.6 million contributors across more than 150 countries and more than 500 languages and locales.

Defined.ai lists ISO 27001, 27701 and 42001 accreditation and states GDPR and HIPAA compliance on its homepage.

## How do you sell data through Defined.ai?

Defined.ai asks sellers to complete a form on its partnerships page. Submitting it means agreeing to its Supplier Program General Terms and Conditions, which let Defined.ai review data samples before it contacts you. Defined.ai says only 30% of partners are approved for the marketplace after ethical vetting.

Revenue share, commission, exclusivity and payment timing are not published on the pages we checked. Read the supplier terms before you submit, because submitting the form is itself acceptance.

## Who is Defined.ai a good fit for?

Defined.ai suits holders of licensed speech, language and media datasets, such as [speech and audio data](https://sellmydatatoai.net/buy-ai-training-data/speech-and-audio-data) or [multilingual text](https://sellmydatatoai.net/buy-ai-training-data/multilingual-text-data). It is less suited to one-off company archives of internal records.

## Sources

- [Defined.ai homepage](https://defined.ai/), Defined.ai, accessed November 2026
- [AI marketplace partnerships](https://defined.ai/partnerships), Defined.ai, accessed November 2026

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