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Submit your AI outputs
Text via secure portal - EU-hosted.
Nxted Expert
Your AI learns from the people who know it best.
Domain experts across engineering, the sciences, medicine, law and finance evaluate your AI outputs, generate training data, and red-team your models - with full transparency on who reviewed your AI and exactly how accurate they were.
Live quality report
Sample · Industrial AI
Accuracy71%
Inter-rater agreement94%
Factual errors
12
Domain errors
8
2 CE-verified domain engineers · 4.8/5 contributor score
Full transparency on every batch - the score, the breakdown, and who produced it.
What is RLHF and human evaluation for AI?
RLHF - reinforcement learning from human feedback - uses human judgements of model outputs to align an AI’s behaviour. Human evaluation more broadly means qualified people rating accuracy, safety and domain-correctness. nxted Expert supplies credentialed domain reviewers and reports inter-rater agreement, so you can tell real signal from noise.
Why use domain experts instead of a crowd?
A confident, fluent, completely wrong answer about bearing failure, drug interactions or contract law sails through a generalist review. Only a reviewer with the right training spots it. nxted matches experts to the exact sub-domain and scores severity by deployment risk - catching the failures that matter.
How it works
Four steps from brief to quality report.
02
We assign verified contributors
Matched on expertise, workload, and score.
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Experts evaluate against your rubric
Structured verdict plus free-text correction.
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Quality report delivered
With inter-rater agreement and expert credentials.
Products
From free test to fully managed retainer.
Free Test Kit
Quick Sprint
Retainer plans
From £1,500
per month
- ›Ongoing evaluation
- ›Quality dashboard
- ›Dedicated coordinator at Growth+
Starter Retainer
Growth Retainer
Scale Retainer
Specialist engagements
For red-teaming and EU AI Act compliance.
Adversarial Sprint
£499 - £2,00050 adversarial prompts crafted by domain experts. Identify failure modes before they reach production.
EU AI Act Compliance Package
£2,000 - £8,000Evaluation plus structured compliance narrative for high-risk system documentation.
FAQ
RLHF & human evaluation for AI: FAQ
What is RLHF and human evaluation for AI?
RLHF (reinforcement learning from human feedback) uses human judgements of model outputs to align an AI’s behaviour. Human evaluation more broadly means qualified people rating accuracy, safety and domain-correctness. nxted Expert supplies credentialed domain reviewers and reports inter-rater agreement, so you can tell real signal from annotator noise.
Who reviews my AI outputs?
Credentialed domain experts matched to your field - engineering, the sciences, medicine, law or finance - not a generalist crowd. Reviewer credentials are disclosed per project, and every batch reports inter-rater agreement plus an error taxonomy tied to your deployment risks.
How is nxted Expert different from a generalist crowd?
Generalist crowds catch tone and format problems but miss expert failures - a confident, wrong answer about bearing modes or drug interactions sails through. nxted matches reviewers to the exact sub-domain and scores severity by deployment risk, surfacing the errors only a professional can see.
Is it suitable for EU AI Act compliance?
nxted Expert reports are built to drop into a high-risk AI technical file: evaluator credentials, inter-rater agreement, an error taxonomy and methodology, mapped to EU AI Act Article 10 and Annex IV. Every engagement is covered by a signed DPA - see our EU AI Act position statement.
How do I try nxted Expert?
Start with a free Expert Test Kit: 20 evaluated outputs with a quality-score report from verified contributors, no card required. Paid sprints start at £249 and ongoing retainers are available. Engagements are scoped within hours on business days.