Prolific Participants vs Meridial

Both operate globally and overlap in coding, finance, and linguistics work, but they package it differently. Prolific has two routes in — an open research-participant marketplace you register for, plus an expert network hiring for AI training and evaluation — and lists effectively all of it as remote. Meridial (an Invisible Technologies-powered contractor network) posts country-specific freelance AI trainer projects across the US, India, the Philippines, Canada, the UK, and Singapore, so most of its listings are tied to a particular region even though the network itself is worldwide. Both carry an hourly figure on nearly every listing, but Meridial's skew markedly lower — the majority of its roles fall under $20/hr — while Prolific's cluster in the higher bands. Prolific's raw posting count is also inflated by one requisition fanning out across many city and language variants.