Human data for AI

Human data & data annotation services that make your AI models better.

Data collection, data annotation services, audio transcription and LLM fine-tuning (RLHF & SFT) — plus consent-backed voice data and STEM-trained experts, delivered at scale by an ISO 9001:2017 team.

AI AnnotationVoice dataCollectionRLHFSME trainersLocalization
Voice & speech data

Consent-backed voice data in 25+ languages.

Multilingual speech collection, transcription and dubbing — every dataset built on explicit consent, metadata-tagged and QA-audited end to end.

HindiSpanishArabic+22
Annotation & model training

Precise annotation and model-ready feedback.

From bounding boxes to 3D point clouds, RLHF preference data to LLM evaluation — accuracy delivered through a four-stage QA workflow.

car pedestrian traffic light
ISO 9001:2017 25+ languages Invoiced only on approved work
Watch the intro

Meet Graveiens AI

A quick look at how Graveiens AI partners with teams to deliver human data for AI models.

350+
Global clients
700+
Experts & SMEs
2M+
Data assets delivered
25+
Languages supported
What we do

The full data pipeline for building AI — from data collection to LLM fine-tuning

From data collection and data annotation services to audio transcription and LLM fine-tuning — one accountable partner across every data type, language and domain your models need.

Data Collection

Sourced and captured to spec, with compliance and consent built in from the first file.

  • Image & video capture
  • Speech & audio, multilingual
  • Text & document sourcing
  • Sensor, in-cabin & road/ADAS data
  • Medical, legal, finance, retail & education
Discuss a collection

Data Annotation & Labeling

Pixel-, frame- and token-level accuracy across every modality, run through a four-stage QA workflow.

  • Bounding boxes, polygons & key-points
  • Semantic & instance segmentation
  • 3D point cloud / LiDAR
  • Video object tracking
  • Text & NLP: NER, sentiment, intent
  • Content moderation
See data annotation services

Voice & Speech Data

Our signature capability: consent-backed voice datasets, end to end from artist onboarding to QA.

  • Consent-backed voice datasets
  • Multilingual speech, 25+ languages
  • Transcription for ASR
  • Dubbing, subtitling & voice-over
  • Accent & dialect tuning
Build a voice dataset

Audio Transcription

Accurate audio transcription services for ASR training and evaluation, across accents and 25+ languages.

  • Verbatim & clean-read transcription
  • Speaker diarization & timestamps
  • Accent & dialect coverage
  • Domain audio: medical, legal, finance
See audio transcription

Generative AI & LLM

Human feedback and subject-matter depth to align, evaluate and fine-tune your models.

  • RLHF & preference data
  • Supervised fine-tuning (SFT)
  • Prompt engineering
  • LLM evaluation & red-teaming
  • STEM & domain SME trainers
  • Fine-tuning & optimization
Explore LLM services

Language & Localization

Deep Indic plus major Asian and European coverage for truly multilingual AI.

  • Translation & localization
  • Interpretation
  • Transcription
  • Transcreation
  • Proofreading & QA
See languages

Specialized Workforce

A vetted expert bench you can scale into — human-in-the-loop where it matters most.

  • SME network: STEM, medical, legal, finance
  • Crowd / workforce as a service
  • Data validation & quality review
  • Technical AI experts (Python, TensorFlow, PyTorch, NLP)
Augment your team
How the work looks

Built to show, not just tell

A closer look at the data our teams produce every day.

Global, multilingual collection

We source and capture image, video, speech and text data across regions and languages — with compliance and explicit consent designed in from the start.

Start a collection

RLHF & preference feedback

Human raters compare and rank model responses so your model learns what good looks like — with STEM and domain experts on the hard prompts.

Explore LLM services
Prompt · Explain gradient descent
Response A Preferred
Response B

3D point cloud & LiDAR

Segmentation and object labels on 3D point clouds for autonomous driving, robotics and spatial AI — depth-accurate and QA-checked.

See annotation
vehicle road
Why Graveiens AI

Enterprise-grade quality, without enterprise-grade risk

We pair a compliance-first design with a pricing model that lets you try us on real work before you commit budget.

About our team

Consent-first & compliant

Explicit-consent onboarding, metadata tagging and an audit trail on every program.

Four-stage QA

Create, internal review, client review and rework loops — backed by ISO 9001:2017.

Pay for approved work only

You are invoiced for approved deliverables — pilots are close to zero-risk.

STEM SME bench

Pedagogically trained subject-matter experts from our education heritage.

Where our data goes

Built for every AI use case

Model-ready data and human feedback for the systems teams are shipping today.

Trusted by leading AI labs, LLM companies and data platforms.

ISO 9001:2017 certified · consent-backed pipelines · invoiced only on approved deliverables

350+
Clients served across the group
100+
In-house AI trainers & experts
25+
Languages delivered
ISO
9001:2017 certified
Human data for AI

AI training data services built by people who understand your models

Graveiens AI is a human-in-the-loop data services company that helps teams build, train and evaluate machine-learning models with high-quality, ethically sourced training data. From raw data collection through annotation, transcription, RLHF-style preference feedback and expert LLM evaluation, we turn messy real-world signals into structured, model-ready datasets your team can trust.

Every dataset is produced by trained annotators, subject-matter experts and voice artists working inside a measured, four-stage quality workflow. Because our roots are in education services, we bring a deep bench of STEM, medical, legal and finance reviewers to the work that needs real judgement — not just clicks. The result is AI training data that is accurate, compliant and genuinely useful for supervised fine-tuning, computer vision, speech and generative-AI programmes.

See how our data services work
Industries

AI data services for every industry

We collect, label and validate data for the domains where accuracy and compliance matter most.

Automotive & ADAS

Road, in-cabin and sensor data for driver monitoring, perception and autonomy.

Explore automotive

Healthcare & life sciences

Clinically reviewed text, image and audio data with privacy-first handling.

Explore healthcare

Banking & finance

Document, transaction and conversational data for fraud, KYC and support models.

Explore finance

Retail & e-commerce

Catalogue, search and review data for recommendation and NLP models.

Explore retail

AR / VR & spatial

3D, depth and scene data for immersive and spatial-computing applications.

Explore AR/VR

Geospatial

Imagery and map data annotated for detection, segmentation and change analysis.

Explore geospatial
How we work

A simple, low-risk way to build your dataset

Every engagement follows the same measured path from first sample to production scale.

Scope & guidelines

We align on your ontology, edge cases and acceptance criteria before any data is touched.

Pilot batch

A small sample task proves quality and turnaround on your real data.

Production & QA

Work scales through our four-stage review — create, internal review, client review and rework.

Approve & scale

You download approved files and are invoiced only for deliverables you accept.

Representative results

What partnering with Graveiens AI looks like

Anonymized examples of the kinds of programmes our teams support.

Voice AI — multilingual speech data

A voice-AI company needed consent-backed speech across several Indic and European languages. We onboarded artists, managed recording and metadata, and delivered accent-tuned, QA-reviewed audio ready for ASR training.

Medical LLM — expert evaluation

An enterprise fine-tuning a medical LLM needed qualified reviewers. Our SME bench scored responses and wrote reference answers under a strict rubric, improving the signal in their preference data.

Computer vision — annotation at scale

A perception team needed pixel-accurate labels on a large image and LiDAR set. We adapted tooling to their ontology and scaled annotation while holding a high post-QA accuracy bar.

Related services

How Graveiens AI compares as an AI data services partner

AI data services turn raw text, image, audio and video into structured, model-ready training data through human collection, annotation, transcription and review. Here is how our managed, consent-first data services model compares to two common alternatives teams weigh up.

Quick answer: Graveiens AI is an ISO 9001:2017-certified, human-in-the-loop data services company that delivers data collection, data annotation, consent-backed voice data, transcription and LLM fine-tuning (SFT and RLHF) across 25+ languages — and invoices only for the deliverables you approve.
Graveiens AI compared with a crowd-only vendor and an in-house data team
What mattersGraveiens AICrowd-only vendorIn-house team
Data consent & complianceExplicit-consent onboarding, metadata tagging and an audit trail on every programProvenance often unclearDepends on internal policy
Subject-matter expertiseSTEM, medical, legal & finance SMEs from an education heritageGeneralist crowdLimited by headcount
Language coverage25+ languages, deep Indic plus major Asian & EuropeanVaries by poolUsually one or two languages
Quality assuranceFour-stage QA: create, internal review, client review and reworkOften single-pass labelingAd hoc review
Pricing riskInvoiced only on approved deliverablesPaid per task regardless of outcomeFixed salary overhead
Time to scalePilot to production on a vetted expert benchFast but variableSlow hiring cycle

Start with a low-risk pilot

Send us a sample task — an annotation batch, a language voice set, or an RLHF run. You only pay for what you approve.

Book a pilot

Frequently asked questions

Common questions from AI teams evaluating Graveiens AI as a data partner.

What does Graveiens AI do?

Graveiens AI provides human-in-the-loop data services for AI teams: data collection, data annotation and labeling, consent-backed multilingual voice data, transcription, LLM fine-tuning (SFT and RLHF) and LLM evaluation. The company is ISO 9001:2017 certified.

What data types and modalities do you support?

We work across text, image, video and audio in 25+ languages — covering data collection, annotation and labeling, transcription, and model-ready human feedback.

How does your pricing work?

Pilots and projects are billed only for approved deliverables. Files pass internal QA and client review, and you are invoiced only for the files you approve — which keeps pilots near zero-risk.

Which languages do you cover?

25+ languages, with deep Indic coverage plus major Asian and European languages, for multilingual voice data, transcription and localization.

Is your voice data consent-backed and compliant?

Yes. Voice datasets are built with explicit artist consent, metadata tagging and QA audit trails, delivered under an ISO 9001:2017-certified workflow.

How do we start a pilot?

Share your task, target language(s) and volume. We scope a sample batch, deliver it through our QA workflow, and you approve the deliverables before scaling.