Scale AI
the biggest vendor in the category, part-owned by one of your competitors, with the longest labour record to read.
unmatched capacity and capital, ranked last here because this page measures transparency and labour record — and on both, scale has the most on the record.
on capability scale is the leader: the deepest capacity for frontier training data and rlhf, the most capital, and the most government contract wins including a department of defense engagement reported above $300m. a ranking built on throughput would put it first, and this one is not.
the ownership changed the market. meta took a reported 49% stake for about $14.3bn in june 2025, valuing scale at $29bn, and founder alexandr wang left to lead meta's superintelligence lab. google, openai and microsoft were reported to have reduced or ended engagements afterwards over confidentiality and competitive concerns. scale still operates separately, but a large minority owner is now a direct rival to several of its customers.
the description above is ours, condensed from the ranking. pricing moves — check it on the vendor's own page before you rely on it.
- category
- data labeling vendors
- pricing
- not published
- website
- scale.com
unmatched capacity and capital, ranked last here because this page measures transparency and labour record — and on both, scale has the most on the record.
we researched this category against vendors' own pricing pages and licence files. that is where this line comes from — not from the vendor, and not from anything they paid for.