Culvert Solo AI
For companies

Datasets that sound like real India

Custom, consented speech and text data in Indian languages — collected and reviewed by native speakers.

Use cases

What our data powers

Speech recognition

Diverse, accent-rich audio with accurate transcripts.

Voice assistants

Commands, wake words and natural queries.

LLM training

Instruction, translation and preference data in Indian languages.

Chatbots

Intent-labelled conversations and multilingual dialogue.

Call-centre AI

Conversational audio with speaker labels and sentiment.

Localization

Apps, websites and content adapted for local audiences.

Quality process

Checked at every step

  • 01Contributor screening by language and region
  • 02Clear guidelines and pilot batch
  • 03Automated checks for audio format and noise
  • 04Human review of every batch
  • 05Quality report with delivery
Security & consent

Responsible by design

Informed consent

Every contributor signs a consent agreement before participating.

Secure handling

Data is stored with access controls and shared only with you.

Confidentiality

NDAs available for your project and guidelines.

We do not sell contributor data to third parties.

Get started

Request a service

Tell us what you need and we'll reply with a proposal.

Step 1 of 2Your company

0+

Hours of speech delivered

0+

Indian & global languages

0 wks

Typical pilot turnaround

0%

Consented contributors

What people say

Trusted by teams and contributors

The pilot batch was clean, well-labelled and on time. Scaling to more dialects was painless.
Head of DataVoice AI startup
Their native reviewers caught nuances our in-house team missed. Quality was consistently high.
ML LeadConversational AI company
Clear consent process and transparent reporting made procurement easy for us.
Program ManagerEnterprise customer
FAQ

Questions from companies

What is the minimum order size?

We can start with a pilot of a few hours of audio or a few thousand items.

Can you collect custom scripts or scenarios?

Yes — scripted, semi-scripted and spontaneous speech, plus domain-specific scenarios.

How do you ensure demographic balance?

We recruit to your specified mix of age, gender, region and accent and report coverage.

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