Platform
Platform
Mercor posts public contract roles for people who train and evaluate AI models. Many listings are standing talent pools: you apply once, complete an assessment or a short interview, and may later be invited to a paid project. Others are specific openings with a stated rate.
Pay on the postings we have read is usually given in US dollars, hourly or sometimes per task. Mercor says hired contractors are paid weekly via Stripe or Wise. A listing that does not name countries is not a guarantee that every country is eligible; Mercor can only contract in some places.
If you apply through a TrainAI UK link, are hired and do eligible paid work, Mercor’s public referral terms say the referrer earns a share of eligible earnings, up to a cap. One-time-payment listings are excluded from that share. Your own pay is unchanged.
Ad Apply buttons on Mercor role pages are referral links. Applying on Mercor directly is fine too.
Listed pay
Evaluate and improve how a large language model handles British English, including grammar, register and UK usage.
Listed pay
Flexible, remote chip-design work at $100 an hour, about 15 to 20 hours a week, focused on RTL design and verification.
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Build evaluation tasks for AI systems that produce professional creative work, across enterprise communication, entertainment, marketing, staging and interactive digital products.
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Review evaluation tasks, reference outputs and rubrics for AI systems used in enterprise electrical design, against IEC and/or US electrical standards.
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Everyday web-search work: run assigned queries, rate the results, and leave short notes. The posting looks for careful, detail-oriented English writers, not a named specialism.
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Evaluate and improve how a large language model handles English-language tasks, including grammar, meaning and cultural standards.
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A full-time, remote, worldwide engagement for MLOps engineers working on LLM performance, including kernels, profiling and serving. The posting asks for 40 hours a week and no other engagements.
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Subject-matter work on genomics and cell-biology tasks, benchmarks and model evaluation for a leading AI lab. The posting is open in the UK and the US.
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Subject-matter work designing and evaluating AI tasks in pharmacology, ADME/Tox and PK/PD, aimed at people with hands-on drug-discovery experience. The posting is open in the UK and the US.
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Subject-matter work on chemistry tasks, benchmarks and model evaluation for a lab, aimed at chemists with substantial lab experience.
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Compare AI-generated videos side by side and explain which result holds up to a professional film-craft standard.
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Research-project work with a foundational-model lab, aimed at economics researchers with a PhD and substantial institutional experience.
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A rolling Mercor pool of practising lawyers who review how AI systems handle legal questions across several jurisdictions, including the UK.
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A standing Mercor listing for machine learning practitioners who want AI training and evaluation work, not a single short-term vacancy.
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A standing Mercor listing for investment bankers who want AI training and evaluation work, such as modelling, comps and rubric-writing.
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A standing Mercor listing for people who can read carefully and judge general reasoning, without a named specialism or required degree.
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A standing Mercor listing for biologists who want AI training and evaluation work, including writing research problems and grading model-written experimental designs.
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Record UK English voice samples to train and evaluate a customer-experience speech model. The posting says your voice may be cloned for that specific use.
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Project-management work on LLM-training projects: tracking annotator performance, reviewing quality, and handling contributor communications.
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Compare AI-generated answers on accounting and financial-reporting problems, and explain which is better, citing correctness and standards compliance.
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Record Northern English voice samples to train and evaluate a customer-experience speech model. The posting is for female voices with authentic Northern UK accents, based in the northern UK.
Read how to get into AI training work in the UK for assessments, eligibility and contractor tax, or compare all the AI training platforms we list. Every current role is in the UK AI training jobs table.
Notes on this platform were checked on 14 November 2026, Europe/London, against official public pages. Terms change; read the live posting and the platform’s own terms before you apply.