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COMPANY

Defined.ai

AI data marketplace providing high-quality training data across text, speech, image, and video for machine learning applications.

TARGET QUERY defined ai · ~2K/mo
FOUNDED
2015
HEADQUARTERS
Seattle, WA
EMPLOYEES
~300
TOTAL FUNDING
$77M+
VALUATION
$150M+
PRODUCTS
Defined.ai MarketplaceData CollectionData AnnotationData Validation
OVERVIEW Updated 2026-05-16

Defined.ai operates an AI data marketplace where buyers and sellers of training data can transact at scale. Founded by Daniela Braga, a speech technology researcher, the company has built a platform connecting data providers with AI companies that need diverse, high-quality training datasets.

Core Products

The Defined.ai Marketplace provides a curated catalog of pre-built datasets across text, speech, image, and video modalities. Data Collection services enable custom dataset creation through a global network of contributors. Data Annotation provides labeling services across multiple data types. Data Validation ensures quality through automated and human review processes.

Competitive Position

Defined.ai’s marketplace model differentiates it from managed labeling services like Scale AI. Rather than owning the labeling process end-to-end, Defined.ai connects data buyers with diverse data sources, creating efficiency through marketplace dynamics. The company’s strength in speech and language data, reflecting its founder’s background, gives it particular relevance for voice AI applications.

Recent Developments

Defined.ai has expanded its marketplace to include generative AI training data, including preference datasets and multilingual content. The company has grown its contributor network globally, particularly for underrepresented languages and dialects. Enterprise partnerships have expanded with major tech companies sourcing training data through the platform.

Outlook

The AI data market is growing rapidly as companies need ever-larger and more diverse datasets for model training. Defined.ai’s marketplace approach scales efficiently, though it must compete with larger players and navigate the ethical complexities of AI training data sourcing. The growing demand for multilingual and culturally diverse training data plays to the company’s strengths.

JUSTSAID INTELLIGENCE CROSS-COLLECTION
MOMENTUM
0
CONTROVERSY
0
ECOSYSTEM REACH
0
OPEN SOURCE
0
CONNECTED ENTITIES