Expert data labelling for AI

Expert-labeled data for better AI.

Metabit turns raw data into precise, consistent training data across text, images, audio, and video. Trained human experts do the labeling, AI handles the busywork, and every label is reviewed before it reaches your model.

IMAGE object · 0.98 labeled TEXT 2 entities AUDIO speech AI pre-labels Expert verified
Experts across Text & NLP · Images & video · Audio & speech · Sensor data · Specialized domains incl. medical
The problem

Your model learns exactly what your labels teach it.

Automation can label fast, but it can't tell you when it's confidently wrong. Ambiguous cases, edge behavior, nuance, and shifting guidelines are exactly where models fail, and where only trained human judgment holds up. Metabit puts experts at the center: AI pre-labels the routine, people resolve the hard cases, and every label is reviewed, measured, and traceable before it reaches your training set.

What we label

Data labeled by people who understand it.

Every modality, handled by trained annotators and domain experts. We also take on specialized fields that need real subject-matter knowledge, including medical, legal, and financial data. AI accelerates the volume; experts own the accuracy.

Text & language

Text

Turn documents, messages, and transcripts into clean, labeled training data for language and NLP models.

Image & video

Vision

Annotate images and video so computer-vision models can recognize and locate what matters.

Audio & signals

Audio

Transcribe, tag, and structure speech, audio, and sensor data into training-ready labels.

LLM & RLHF

Modular Guardrails

Human preference, prompt evaluation, and strict safety data to align language models. We build the structured guidelines that keep your AI on track.

How it works

From raw data to training-ready labels.

One accountable path. Each step is run by experts, by AI, or by both, and every label carries the record of who did what.

1

Guidelines

We agree on the goal and quality bar with your team.

Experts
2

Pre-label

AI drafts labels to take out the repetitive work.

AI
3

Label

Experts handle the cases judgment can't be automated for.

Experts
4

Review

Multiple reviewers resolve disagreements into gold labels.

Experts
5

Deliver

Labels ship in your format, ready to train on.

Platform
The Metabit Workforce

Data Operators, not just click-workers.

Accountability and technical rigor are essential for AI teams. We don't farm out your proprietary data to anonymous crowds. Our workforce consists of Data Curation Specialists who understand ML workflows, complex schemas, and human-in-the-loop pipelines.

  • Technical Data Operations: Fluent in CSV, JSON, and Parquet. Our team independently troubleshoots API access, rate limits, and dataset acquisition failures.
  • Human-in-the-Loop QA: Trained to critically evaluate AI-generated outputs, correct hallucinations, and generate highly structured metadata.
  • Platform Agnostic: We use our own tooling or plug securely into your internal web portals and cloud environments via VPN.
Team Calibration

Dedicated Squads

When you partner with Metabit, you get a dedicated squad. They learn your edge cases, adapt to your schema requirements, and become a direct extension of your internal ML engineering team.

Schema Validation API Troubleshooting Metadata Generation
How we measure it

Quality has numbers.

The same metrics our annotators are accountable for, reported per project, not averaged into a brochure. Representative figures below.

99%+
Label accuracy vs. gold
0.94+
Inter-annotator agreement
99.9%
API Uptime & Delivery
10k/s
Throughput Requests
Careers · open roles

Someone has to get the labels right.

AI can pre-label at scale. People make sure it's correct and consistent across thousands of edge cases. We hire experts who treat label quality as the product.

Data Labeling & Annotation Specialist
Full-time / contract · Remote-friendly
+

Help build and maintain high-quality datasets used in AI, machine learning, and scientific knowledge systems. This role combines data acquisition, quality assurance, metadata generation, and human-in-the-loop workflows.

Responsibilities

Monitor dataset acquisition workflows, investigate and resolve API/download failures, inspect datasets for completeness, and generate structured metadata. You will critically review and edit AI-generated annotations to ensure strict accuracy across large collections.

Required Qualifications
  • Ability to investigate and troubleshoot technical API issues independently.
  • Proficiency with formats like CSV, JSON, Parquet, and Excel.
  • Comfortable working with web portals and authentication systems.
  • Ability to critically evaluate AI-generated outputs.
Apply · Hr@metabit.co.in Tell us about your background.
Start a project

Labels are the product.

Bring us your data and a labeling goal, or just the problem, and get back precise, consistent training data. Early access is open for AI and research teams.