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Product

Where Experts Turn Conversations Into Trustworthy Voice AI Data

Speaker diarization and transcription models are good, but not perfect or production-ready out the box. Kili's audio annotation tool gives you the interface where domain experts and HITL teams can correct these models and improve them at scale. Launch 100+ projects fast without compromising quality and security.

*No credit card required. Risk-free evaluation.

Trusted by the world leaders

Features

Every Turn, Attributed and Verified

A misplaced speaker boundary doesn't just read wrong. It teaches your model that the customer said what the agent said. Kili puts the automated first pass in front of the people who know the domain, so they correct speaker attribution and wording against the waveform, including multi-party conversation and overlapping speech, without waiting on an ML engineer. What you train, fine-tune, and evaluate on is a conversation your experts have verified turn by turn.

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Features

Quality Workflows that Scale

Audio models give you a first draft. They don't give you a cardiology consultation transcribed in Portuguese with the drug names right, or a compliance taxonomy applied consistently across 40,000 hours of calls. That last mile is human — and clinicians, native speakers, domain specialists are the scarcest resource you have.

So don't spend them on the first pass. Models and trained annotators absorb the volume; your experts sit at the review layer, where sampling decides how much of it reaches them.

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Features

Train on the Recordings You Can't Send to the Cloud

The calls most worth training on are the ones carrying PHI, financial detail, and personal data. Run Kili wherever your security policy requires: managed SaaS, an Azure Marketplace app in your own subscription and region, a hybrid mode where raw audio never leaves your storage, or fully on-premise with no internet dependency after installation. Every tier is covered by GDPR, SOC 2 Type II, ISO 27001:2022, and HIPAA.

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Complete Conversation Data Toolkit

Product photo of breast cell segmentation on Kili Technology's platform
  • Speaker Diarization

    Mark who is speaking and when, directly on the waveform — multi-party calls, interruptions, overlapping speech. Boundaries are reviewed and set by human judgment after the first model pass.
  • Transcription

    Turn each segment into text, with the terminology, accents, and code-switching handled by annotators who know the domain and the language. Import existing ASR output as a starting point and correct against the audio.
  • Review & Audit Trail

    The multi-stage review and audit trail Kili applies to every other data type, now applied to voice, with human-in-the-loop correction measured at every step.
Tools

Build structured datasets from all data types

Kili Technology is a complete data suite that supports all data types and handles specialized formats for domain-specific requirements.

Geospatial Imagery

Drive reliable mapping and monitoring through high-quality geospatial annotations.

OCR & Document Layout Analysis

Turn unstructured documents into usable data with accurate text extraction and streamlined review workflows.

Natural Language Processing

Annotate text for NER, classification, and sentiment analysis with collaborative workflows.

Image Annotation

Annotate images 10x faster with SAM 2 integration and automated quality controls.

Video Annotation

Annotate long videos seamlessly and boost productivity with advanced automation.

Audio Annotation

Build quality-focused diarization and transcription workflows to improve ASR and Speaker Diarization models for domain-specific and multilingual use cases.

Use Cases

High-precision labeling built for large datasets

Structured Conversation Data, Whatever the Driver

Regulated Voice Operations

Reconstruct exactly what was said and by whom across claims, advisory, and complaint calls, with speaker attribution that holds up when it is used as evidence.

Service Quality & Agent Coaching

Move from spot-checking a handful of calls to reviewing structured, speaker-labelled conversations systematically, at the volume your contact centre actually produces.

Voice Agent Training & Evaluation

Build the speaker-attributed conversational datasets that voice agents, IVR systems, and agent copilots are trained on and evaluated against.

ASR & Diarization Model Development

Correct and validate automated transcription and speaker segmentation to produce the ground truth your ASR and diarization models get measured on.
Ready to Start?

Test out the tool now or go for a deeper evaluation

You can also check out our documentation to learn more about our features. We're ready when you are.

Plans

Free Trial

Test out our platform for your use cases, no credit card required.

$0
/month
  • 1 team seat
  • 100 asset limit for text, documents, and images
  • 5 asset limit for video and satellite imagery
  • AI-assisted labeling
  • * For evaluating more advanced use cases, speak with our team
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Enterprise

For organizations requiring advanced security and customization

Custom Contract
All Grow features
including:
  • Custom seat allocation
  • Custom terms
  • SSO integration
  • Advanced security features
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FAQ

Need help?

Got questions about Kili Technology? Check out our FAQ. If you can't find it in this list, drop a question for our team.

How does Kili handle speaker diarization?
Can business reviewers correct transcripts, or does it require ML engineers?
What quality controls are available for audio annotation projects?
Can Kili process sensitive call recordings on our own infrastructure?
Testimonials

Trusted by teams around the world

Learn how Kili Technology has changed the way these teams train, fine-tune, and evaluate their models.

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I have been using Kili for 6 months now on a wide range of labeling use cases (both in computer vision and natural language processing). The stability offered by the tool is essential when you have tight deadlines and large volumes of data to annotate. Our team of over 1000 workers is accustomed to the tool, we were able to easily integrate our workforce management tool with Kili with the SSO functionality.
Kili is a powerful and easy-to-use tool for data labeling and annotation. The interface is user-friendly and offers several interesting features. The customer support team is also responsive and helpful.
Software to engage both labelers and business lines in the necessary but tedious task of labeling and annotation, served by a dedicated team to listen to your problems.
Thanks to the fact that our AI infrastructure now includes Kili Technology, we can use the tool for all kinds of projects... LCL teams can accelerate drastically the creation of their training datasets, which means a significant improvement for all the parties involved.
With the choice of Kili, we are much more confident about the future. We decided to eliminate a large part of the technical debt by choosing a solution that will be perfectly mastered across a whole range of data science and AI projects.