Voice intelligence for AI voice agent guardrails.

Keep AI conversations safe, compliant, and on-script

AI voice agents operate in unpredictable environments—facing sarcasm, provocation, edge cases, and deliberate attempts to push them off-script. Even well-trained models can slip when conversations escalate or take unexpected turns. Unfortunately, black-box AI models aren't built for guardrails. Rather, these models are trained aggressively to answer the customer no matter what - directly leading to risks like hallucinations.

Modulate's AI is trained differently. Instead of participating in the conversation, we stay on the outside, providing consistent, voice-native monitoring that can notice explicitly when a conversation is going off the rails - and flag that to you, or to your AI directly, in real-time. Powered by Velma, Modulate's voice-native AI model, the platform understands the full emotional and subtextual meaning in each conversation—ensuring we detect when things go wrong without relying on explicit direction from the human party.

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Why AI agents need supervision

Guardrailing AI behavior isn't just about what an agent says—it's about how the conversation is evolving.

Two conversations with identical words can carry very different meanings depending on tone, pacing, escalation, or user intent. Vulnerable human users - especially kids or the elderly - might signal confusion or uncertainty that requires careful handling an AI is unequipped for or simply misses. Text-only guardrails and post-response filters miss these signals—and often react too late.

Modulate continuously monitors AI voice interactions as they happen, providing an independent layer of oversight that doesn't rely on the agent supervising itself.

Built for real-world AI deployments

Modulate supports AI voice agents across high-risk, high-visibility environments:

Customer support and service agents

Ensure AI agents remain professional, compliant, and within brand voice—even under stress or provocation.

Consumer-facing voice assistants

Prevent inappropriate, unsafe, or off-topic interactions in open-ended consumer environments.

AI companions

Recognize vulnerability that requires extra care - potentially escalating to a human or alerting authorities, and otherwise fine-tuning the AI's behavior to avoid catastrophic harm.

Gaming and social AI characters

Maintain character integrity and community standards during adversarial or playful interactions.

Regulated industries

Support compliance requirements by enforcing consistent conversational behavior and producing reviewable evidence.

Accuracy Without Multi-Week Tuning

Gets accuracy right from the start. No need for weeks of tuning to get reliable results. Built on 500 million+ hours of real-world conversations, it just works.

Costs 90% Less with Simple Pricing

Save up to 90% over competitors. Simple usage-based pricing and 1,500 hours+ in free credits. You’ll know exactly what you’re paying for – no tricky conversions or unexpected fees.

Clean Output for Downstream AI

Engineered to provide better output for your downstream AI tools. By focusing on natural speech and not just clean text, you can expect better summaries, analytics, and more.

Stable Performance Across Long Conversations

Handles long conversations like meetings or conversations with multiple speakers without compromising accuracy.

Simplify Compliance

Use a transparent, consistent, and fine-tuned system to automatically generate reports and offset concerns of bias or privacy.

Privacy by Design

Modulate builds with privacy top-of-mind - we've securely stored hundreds of millions of sensitive conversations for highly regulated customers without any breaches in nearly a decade of operation.

Customizable Reporting

Customize Modulate's results to match your required report structure, and know you're only getting real insights traceable directly back to specific comments, sounds, or events within the conversation.

Data Control

Maintain control of your data - Modulate does not train generative AI at all, and gives you control over how (if at all) we use your data to train our analytics.

Compliance Ready

Use battle-tested explainable AI with deeply built-in bias controls to satisfy requirements like the EU AI Act even when assisting in high-risk decisions.

Insights that fit your workflow.

Pairing Velma’s industry-leading intelligence with the reliability and control required for enterprise.

Dashboards and Review Console

Explore conversations and escalations in a UI designed for operations teams—fraud, trust & safety, and contact center leadership.

APIs and Webhooks

Bring voice intelligence into your stack: route signals into case management, risk engines, agent coaching tools, or moderation workflows.

Integrations

Deploy without ripping and replacing. Connect into the voice infrastructure you already use.

Compatible with

Deploy AI voice agents with confidence

AI voice agents shouldn't be left unsupervised. With Modulate, you can gain real-time, voice-native guardrails that keep AI conversations safe, compliant, and aligned—without sacrificing natural interaction.