AI data infrastructure

More data scales compute. Better data scales intelligence.

Most data providers optimise for volume, but poor-quality data wastes compute and weakens model performance.

Coremantle combines contextual data, technology-enforced quality, and expert intelligence to help models learn more from every cycle.

The edge of available data

The future of AI isn't more data.

It's more intelligence per training cycle.

01

Valuable AI data is rare, complex, and hard to source.

The valuable data isn't just more tokens or hours. It's rare, domain-specific, contextual, multilingual, conversational, and representative of how people actually use AI. Finding and sourcing that data at scale is difficult.

The data iceberg
02

Raw data isn't training data.

Audio, conversations, documents, and other raw corpora still need deduplication, transcription, segmentation, annotation, contextualisation, and quality validation before they can reliably improve a model.

Raw data to model-ready data
03

Context gets lost at scale.

Accents, dialects, code-switching, domain terminology, intent, cultural nuance, and edge cases are easy to flatten or mislabel in large-scale annotation. The model gets the words, but misses what they mean.

One conversation, many layers
04

Bad training data compounds. And so does the cost of getting it wrong.

A bad label or noisy example doesn't stay isolated. It can affect training, fine-tuning, evaluation, and deployment, leading to weaker accuracy, unreliable behaviour, and more hallucinations. When training runs are expensive, discovering the problem after training means paying to learn the same lesson again. Every training cycle needs to count.

The compounding cost of bad data

The missing data layer

So we built the data layer models can trust before training.

Consent-first. Quality-engineered from source to model-ready output. Built to understand linguistic complexity before your GPUs ever see the data.

Consent-first and compliant sourcingQuality engineered upstreamCertified model-ready output
>95%Dataset quality
<5%Word error rate
>65%Automated QC
CertifiedModel-readiness certification

Proven against the field

And we beat every major speech-to-text engine while at it.

Model benchmark

Who we build for

One infrastructure layer for different AI ambitions.

01

Frontier AI Labs

Every new model release creates a new data requirement. CoreMantle keeps the training, evaluation, and alignment data moving with it.OpenAI · Anthropic · Google · Meta · Microsoft

Frontier labs
02

Sovereign AI

A sovereign model needs a sovereign data foundation. Locally sourced, consented, traceable data across India’s languages and dialects.Sarvam · BharatGen · IndiaAI ecosystem

Sovereign AI
03

Core Voice AI Infrastructure

Real conversations are where speech models break. We capture the accents, dialects, code-mixing, noise, and domain language benchmarks miss.Deepgram · ElevenLabs · Indic speech platforms

Voice AI

Continuous data infrastructure

Built for continuous improvment.

CoreMantle supplies the training, alignment, evaluation, and refresh data your models need at every stage. Not a one-time dataset. A continuously evolving data infrastructure for continuously evolving models.

  1. 01

    Source

    Real world. Real languages.

  2. 02

    Train

    High-quality data for stronger models.

  3. 03

    Align

    Human feedback and safety at scale.

  4. 04

    Evaluate

    Measure what matters. Find what’s missing.

  5. 05

    Improve

    Close gaps. Reduce errors. Improve performance.

  6. 06

    Refresh

    Continuously expand. Always up to date.

Your modelNew release ships

Model v2.1 → v2.2

New data needsRequirements change
New dialects New domains Failure modes Safety gaps
Coremantle continuous data layer

Identify gaps

Detect what’s missing as requirements change.

Source

Find real-world data across languages, domains, and contexts.

Build & verify

Curate, label, and validate data for quality, safety, and signal.

Refresh data

Continuously expand coverage as the model evolves.

Updated data flows back into the model
Training data
Alignment data
Evaluation data
Refresh data

Your model evolves. Your data infrastructure evolves with it.

The engine behind it

A data pipeline built to keep producing.

6,000+ hours procured
700+ vetted annotators
12 language clustersHundreds of dialects
5,000 hrs / year / languageSustained sourcing capacity
Language-agnostic platformOne workflow. Always improving.

Where to start

Tell us where your model breaks.

We’ll build the language, domain, training or evaluation data needed to close the gap, then keep expanding it as your models evolve.