Voice intelligence to
understand sentiment & emotion.

Velma is frontier model for real conversation - used by enterprises to fight fraud, ensure compliance, and protect users, and by developers to power more accurate real-time agents, transcribe noisy audio more reliably, or detect subtle vocal cues of deepfakes.

Preview Velma

For enterprises.
No engineering required.

Access the API

World’s #1 transcription,
deepfake detection, and more.

#1

accuracy on conversation understanding, transcription and deepfake

40M+

Users protected from fraud, harassment and abuse

25x

better cost performance than foundation models
Conversations Improved:

563124894

This transcription might be the best stuff, I've seen. I've never seen another model with realtime diarization (that works?!)
Nick Leonard
Voice chat is a powerful part of how players communicate and compete in our games. By using Modulate to identify disruptive behavior in real time, we're building a foundation that supports enforcement while sustaining the fun and fairness that define great multiplayer experiences.
Natasha Tatarchuk
Senior Vice President, Chief Technology Officer, Activision

Meet Velma

#1 in accuracy. #1 in cost-effectiveness. Unlimited insights.

Most “voice AI” stacks treat audio like nothing more than words - transcribing what is said and handing the text to a language model.

Velma is different. It’s the first production Ensemble Listening Model (ELM): a voice-native model that understands conversations the way humans do - with full awareness of how something is said, not just what.

Velma is available as the engine behind Modulate's enterprise platform and as direct APIs for transcription and deepfake detection, with full voice analytics coming soon.

See how Velma outperforms LLMs.

Conversation Understanding Benchmark — Accuracy vs. Cost
Tests models' ability to recognize key conversational behaviors including aggression, policy violations, complaints, deception and more
Highest accuracy lowest cost
Inference cost
Accuracy score

Additionally, Velma is the #1 AI model in transcription accuracy and cost, deepfake detection and emotion recognition.

See more audio benchmarks

Why We Built Velma

AI Should Understand People

Not the other way around.

That belief shaped how we built Velma. Through our breakthrough research, we developed an entirely new AI architecture for voice – the Ensemble Listening Model – designed to understand conversations directly rather than reduce them to text.

Velma is the first production ELM, trained on hundreds of millions of hours of real conversations to capture nuance, emotion, and intent with unmatched accuracy. And we want Velma to be available to anyone, in every conversation - that's why Velma is available both as a developer API and as a fully managed enterprise team. Integrate at whatever layer makes sense for your team.

EXPLORE THE TECHNOLOGY

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Try Velma for yourself

What Can You Do With Voice Intelligence?

Get notified in real-time when moments of interest arise in conversations.

Power Voice Conversations

Give human or AI agents a set of digital ears that catch hidden meanings, cultural context, and emotional state.

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Evaluate + Guardrail AI Voice Agents

Monitor AI agents like you monitor humans. Evaluate agent behavior, flag risky interactions, and maintain trust at scale.

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Extract accurate transcripts

Emotions, deepfake signals, and more. Access Velma’s component models, each best-in-class in their own right, to accurately transcribe, analyze, or augment audio records in real-time, at industry-leading cost and accuracy.

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Enrich Customer Experience

Improve quality, reduce attrition, and protect the customer experience.

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Fight Fraud and Scams

Catch social engineering, coordinated attacks, and deepfake-driven manipulation before money is lost.

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Bolster Community Safety

Safety at the speed of play. Built on real-time voice understanding in the most adversarial environments.

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The Enterprise Voice Intelligence Platform

Voice intelligence powered by our frontier model.

Modulate’s enterprise platform is purpose-built to bring Velma into your workflows. Connect to your CCaaS, VoIP, telephony provider to intake audio and surface results. Analyze performance, monitor risk, and generate trustworthy insights without heavyweight ML operations.

Analyze

Ask questions of audio: summaries, topics, emotion, fraud signals, compliance risk, and more.

Monitor

Always-on detection for fraud, harassment, and misbehavior across human and AI conversations.

Act

Trigger workflows: alerts, escalation, reporting, and coaching.

Don’t Just Listen. Understand.

We’re building the understanding layer for every human and AI conversation.

Other AIs require people to speak like robots - slow, clear, and without emotion. Velma encourages you to be human. Speak naturally. We’ll keep up.