Delivery standard
95%+ rater consistency on pairwise comparison tasks
What this service is designed to deliver when deployed inside your workflow.
AI Data & Knowledge Operations
RLHF (Reinforcement Learning) Outsourcing for UK Companies.
University-educated human raters providing preference data, safety evaluations, and alignment feedback for your AI models. Dedicated RLHF teams in Nairobi from £13,200 per rater per year.
9:00–18:00 UK time (GMT+3)
|EOR or Managed Services
|7–14 days from signed agreement
Overview
What is RLHF (Reinforcement Learning)?
RLHF outsourcing involves deploying trained human raters to evaluate and rank AI model outputs, providing the preference data that aligns language models with human values and expectations. Treba provides dedicated RLHF teams in Nairobi — university graduates with domain expertise in law, medicine, finance, or technology — who perform pairwise comparisons, safety evaluations, and quality scoring inside your evaluation platform via VDI.
Typical client
UK AI labs training foundation models, SaaS companies fine-tuning LLMs for vertical applications, AI safety teams requiring structured human evaluation, and companies building domain-specific AI assistants
At a glance
How Treba delivers.
The operating facts behind rlhf (reinforcement learning): delivery standard, team shape, and compliance model.
Typical team size
5–40 raters per project, scaled to training data requirements
Scaled to project load and pipeline.
Compliance model
UK GDPR aligned — IDTA framework
Legal and data-transfer structure for the engagement.
UK loaded cost
£54,520/yr
RLHF Trainer
The challenge
Why UK companies struggle with rlhf (reinforcement learning).
RLHF is the process that turns a capable language model into a useful one, but it depends entirely on the quality of human raters. Generic crowdsourced raters produce noisy preference signals that require extensive filtering. Domain-specific evaluation — ranking legal advice, medical explanations, or financial analysis — needs raters who understand the subject matter. In the UK, hiring qualified raters at £40,000+ per head is prohibitive at the scale RLHF demands. Most companies compromise on rater quality and compensate with volume, which introduces its own problems.
Outcomes
What you'll achieve.
See the shift from UK in-house benchmarks to Treba delivery outcomes.
Outcome
Rater Consistency (Cohen's κ)
UK in-house
0.4–0.6 (crowdsourced)
With Treba
0.8+ (dedicated team)
Outcome
Cost Per Rater
UK in-house
£54,520/yr loaded
With Treba
£13,200/yr loaded
Outcome
Domain Expert Availability
UK in-house
Scarce (competing demand)
With Treba
Immediate (pre-vetted pool)
Capabilities
What we deliver.
Pairwise Comparison & Preference Ranking
“Clean preference data for your reward model.”
Safety & Red-Teaming Evaluation
“Adversarial testing by domain-informed evaluators.”
Domain-Specific Quality Scoring
“Medical, legal, and financial outputs evaluated by qualified professionals.”
Meet Your Next Hire
“I lead a team of 15 raters evaluating legal Q&A outputs for a UK AI company. My law degree means I can tell when a model gives an answer that sounds correct but misapplies a legal principle. That distinction is invisible to a general-purpose rater.”
CW
Catherine W.
Lead RLHF Rater
Education
LLB (Bachelor of Laws), Moi University
Certification
Kenya School of Law (Advocate-track), Responsible AI Fundamentals (Google)
Experience
3–7 years in rlhf (reinforcement learning) roles
Economics
UK loaded cost vs Treba.
Fully loaded comparison — Treba cost includes salary, Nairobi office, equipment, IT infrastructure, and full compliance. No hidden fees.
Save 78%
Remote from Nairobi
Audio Transcriptionist
Pre-vetted · Interview in 48hrs · Start in 7 days
UK Cost
£38,592
Treba Cost
£8,400/yr
You Save
£30,192/yr
How it works
How we deliver rlhf (reinforcement learning).
01
Discovery Call
Scope, volume, tools, compliance requirements. 1–2 days.
02
Talent Selection
Pre-vetted candidates matched to your brief. 3–5 days.
03
Tech & Compliance Setup
VDI/VPN access, NDA execution, DPA signing. 2–3 days.
04
Nest Training
2-week onboarding inside your systems with QA checkpoints.
05
Go Live
Full production. Weekly check-ins for first 30 days.
Engagement models
Two ways to work
with Treba.
Choose the model that fits your team. Switch anytime.
EOR (Employer of Record)
Managed Services
£17kAvg. annual
saving
saving
Your Treba team
James M.
KYC Analyst
Amina K.
Med. Transcriber
David O.
QA Tester
Total / yr£28,400
Compliance built in. Not bolted on.
UK GDPR + IDTA
International Data Transfer Agreement for lawful UK–Kenya data flows. Executed by legal counsel. Annual review.
Kenya DPA 2019
Modelled on EU GDPR. Regulated by ODPC. Enforceable. Equivalent protection.
ISO 27001-Aligned
Biometric access. Clean desk policy. CCTV. Network segmentation. No shortcuts.
Cyber Essentials
UK government-backed baseline cybersecurity certification. Audited annually. Public record.
Industries
Industries using this service.
RLHF (Reinforcement Learning) outsourcing for regulated UK industries.
Related services
Explore more.
Browse all AI Data & Knowledge Operations services
View the full list of services in this pillar
FAQ
Frequently asked questions.
Keep reading
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WE ARE TREBA
Start your rlhf (reinforcement learning) pilot today.
Save £41,320 per year with a dedicated rlhf (reinforcement learning) team in Nairobi. Pre-vetted professionals ready in 7–14 days. UK GDPR compliant.