Vendor review · licensed marketplace

Defined.ai

One of the older marketplaces for licensed speech and language data — broad catalog, marketplace model.

⚠ Draft — competitor facts (pricing, coverage, sourcing) must be verified against primary sources before this page is indexed. It is currently set to noindex. Marked TODO throughout.
The verdict. A reasonable stop for off-the-shelf speech corpora; scrutinize per-asset rights documentation for AI-training use specifically.
  • Established catalog - years of speech/language datasets across many languages
  • Marketplace convenience - browse and buy off-the-shelf
  • Provenance depth varies by asset - diligence can be uneven
  • AI-training rights not always explicit in the base licence

What Defined.ai is

Defined.ai operates a marketplace for speech, text, and image datasets aimed at AI teams, alongside data-collection services.

Modalities and languages they cover

Primarily speech and language data across many languages, plus text and some image data. [TODO: confirm current modality and language coverage against defined.ai.]

Sourcing model

A mix of licensed catalog datasets and commissioned collection. [TODO: verify sourcing and consent model per dataset.]

Rights & provenance posture

Markets rights-cleared data; buyers should confirm that each asset’s licence grants AI-training rights explicitly rather than general use. [TODO: verify.]

Pricing

Per-dataset marketplace pricing plus custom collection quotes. [TODO: verify current pricing model.]

Where Defined.ai falls behind

As a broad catalog, per-asset provenance depth varies; buyers running serious diligence often have to chase documentation. fiund’s whole model is that the paperwork travels with the file.

Defined.ai head-to-heads

defined-ai vs appenappen vs defined-aifiund vs defined-ai

Sources

Alternatives

Troveo

Protege

Appen

Scale AI

Surge AI

Shaip

Frequently asked questions

Is Defined.ai rights-cleared for AI training?

Markets rights-cleared data; buyers should confirm that each asset’s licence grants AI-training rights explicitly rather than general use. [TODO: verify.]

What does Defined.ai cost?

Per-dataset marketplace pricing plus custom collection quotes. [TODO: verify current pricing model.]

What are the best Defined.ai alternatives?

Depending on what you need, consider Troveo, Protege, Appen. fiund itself focuses on owner-licensed, rights-cleared audio and video sourced to brief.

Want data you can actually defend in diligence?

fiund licenses real-world audio and video at the source, with the rights cleared before anything moves.

Send a brief