Harmony’s proprietary, task-specific LLMs respond in about 200 milliseconds
Harmony, a voice AI agent platform purpose-built for enterprise sales teams, has launched to help businesses unlock growth.
Built by monday.com, Harmony’s specialised, small Large Language Models (LLMs) enable its agents to navigate real-world calls with speed and precision, increasing revenue by turning pipelines that businesses have already paid for into closed deals.
Enterprises need AI that scales conversations safely and predictably
For companies whose growth depends on speaking to customers, there have always been more conversations worth having than hours to have them. Leads go quiet, follow-ups slip, and renewals wait for a call that comes too late. AI-powered tools have promised to change this scaling equation. However, at best, generative AI solutions can handle routine calls, producing generic results. At worst, they can go off-script, creating legal, reputational, and regulatory damage. Enterprises require solutions that are controllable, predictable, debuggable, and deliver real value.
Harmony’s agents are powered by voice technology acquired from OneAI and a suite of proprietary, task-specific LLMS trained on real customer conversations and orchestrated by a real-time predictive engine.
Each model is dedicated to a single function: qualifying leads, capturing data, handling objections, and more. Harmony’s models deliver approximately 200ms audio-in to audio-out latency, producing speech rhythm that is indistinguishable from humans, with sharper accuracy.
Vitali Margolin, Head of Harmony, explains:
“We are tackling the more complex, higher-stakes calls where every wrong answer costs money and every missed opportunity risks a potential deal. Unlike generic solutions that rely on third-party LLMs, our specialised models and structured logic translate into conversations that sound human and a response time that feels human. It’s what makes the difference when the goal isn’t just completing a call, but growing a business.”
Harmony agents handle live call scenarios and are believed to run the full sales cycle, from prospecting, discovery, and qualification to objection handling, pitching, and warm transfers to live reps with a full briefing.
Harmony offers AI call centre capabilities including unlimited phone numbers with branded caller ID, predictive and power dialing, inbound routing, built-in consent and compliance controls, and native CRM write-back. These capabilities are natively integrated into Harmony, built on top of Twilio’s platform. Businesses can run customer calls end-to-end, 24/7, in any market, without limitations, at lower infrastructure cost than general-purpose AI at call-centre volume.
Harmony is now available for mid-market and enterprise customers in the United States, United Kingdom, Australia, and Singapore, with additional markets and languages to come. Harmony integrates with major CRM platforms.





