Graveiens AI · Data Services
Data Solutions for AI & ML Teams
Annotation, collection, RLHF/SFT, consent-backed voice & speech data and LLM evaluation — powered by STEM SMEs across 25+ languages.
Overview
The Human Data Behind Better Models
Graveiens AI delivers the high-quality human data that AI teams need — annotation and labelling, end-to-end data collection, RLHF/SFT human feedback, consent-backed multilingual voice and speech data, transcription and LLM evaluation. We bring a trained workforce and STEM subject-matter experts, not just crowd labels.
Our education roots give us a rare bench of pedagogically-trained SMEs for STEM validation and domain data, and our voice programs are built with explicit consent end to end. You start with a pilot billed only on approved deliverables.
What We Deliver
Data Services
Data Annotation
High-accuracy image, video, text and audio labelling with custom tooling.
Data Collection
End-to-end collection across medical, legal, finance, retail and education.
RLHF / SFT
Human preference data, supervised fine-tuning and red-teaming.
Voice & Speech Data
Consent-backed multilingual voice datasets and transcription.
STEM Reviewers & LLM Trainers
SME validation, curriculum-aligned data curation and evaluation.
Multilingual Localization
Translation, subtitling and dubbing for multilingual model training.
Why Graveiens
Why AI Teams Choose Graveiens AI
Consent-Backed Voice Data
Explicit-consent artist onboarding with metadata tagging and QA audit trail — compliance-friendly by design.
STEM SME Bench
Pedagogically-trained subject experts for STEM and education-domain data — inherited from our education business.
Trusted by the Platforms
Already trusted by leading AI data platforms and labs — direct engagement means better economics and senior attention.
Pay for Approved Files
Pilot batches billed only on approved deliverables — near-zero-risk to start and scale.
Questions
Frequently Asked Questions
High-accuracy data annotation and labelling (image, video, text, audio), end-to-end data collection, data training and review, RLHF/SFT human feedback, consent-backed multilingual voice and speech data, transcription, and LLM evaluation — delivered by STEM SMEs and trained workforce under ISO 9001:2017.
Our multilingual voice datasets are built with explicit artist consent end to end — from onboarding and recording management to metadata tagging and QA — across 25+ languages with deep Indic plus major Asian and European coverage. That consent-and-audit trail is compliance-friendly for enterprise AI programs.
Yes. We provide human preference data, supervised fine-tuning data, red-teaming and model evaluation — with STEM and education-domain SMEs for tasks that need genuine subject expertise, not just crowd labels.
A pilot batch billed only on approved deliverables: files pass creation, review and rework, and you are invoiced only for approved files — near-zero-risk to start.
They delivered 1,200 assessment items at 96% first-pass accuracy — and still beat our print deadline by two weeks.
US K-12 EdTech
Course completion jumped 58% once they rebuilt our compliance training around real workplace decisions instead of click-next slides.
European Digital Learning Company
800 modules brought to WCAG 2.1 AA — remediated, tested and shipped without a single missed release date.
North American Education Publisher
15,000 employees, one hard regulatory deadline, 98.6% completed on time at a 91% average score. I have never seen numbers like that.
Global Enterprise
Their rapid-eLearning team turned our raw slide decks into polished, SCORM-ready courses in days, not months.
Corporate Training Provider
Localization into six languages stayed perfectly on-brand and on-schedule. They simply understand education content.
Higher-Ed Courseware Firm
They cleared our psychometric review on the first pass — 2,000 calibrated items with zero rework.
US Testing Company
Forty titles converted print-to-digital, EPUB3 and fully accessible, delivered two weeks ahead of schedule.
UK Academic Publisher
Standards-aligned lessons across three grade bands — and our teachers actually use them every week.
US K-12 Charter Network
Scenario-based compliance training lifted course completion from 61% to 96% in a single cycle.
Healthcare Training Provider
They built our SAT bank natively for the digital format when three other vendors could not.
Test-Prep Startup
Q&A content at 98%+ accuracy across six subjects with SLAs in minutes — our churn dropped noticeably.
Global Homework-Help Platform
In Their Words
Client Video Testimonials
Real clients on what it's like to work with Graveiens.
