About harmony.ai

The voice agent built for revenue outcomes.

Enterprise revenue teams don’t need another AI tool to configure. harmony.ai is the autonomous voice agent that owns the conversation from dial to close. Built on enterprise infrastructure by the minds behind monday CRM and oneAI.com.

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Where we came from

Two teams. One product. We came out of monday.com. While building monday CRM, we watched the same pattern play out across high-performing revenue organizations: their highest-stakes conversations always happened on the phone, but there was a finite number of humans available to take them.

We knew the future of CRM wasn’t about storing records - it was about taking actions. And since sales reps and SDRs spend the vast majority of their time talking, we knew that action had to happen through voice.

The product we needed to build was obvious, but we needed deep expertise in telephony and voice AI to pull it off. So we acquired oneAI.com - a team of elite engineers who had spent years training production-grade, latency-first voice models.

We merged the two teams to create harmony.ai: CRM operators on one side of the room, voice-model pioneers on the other. We didn’t combine these teams just to build a better feature set. We built a single powerhouse designed to change how the enterprise scales.

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What we're building

What we’re building

Most voice AI products pick one of these and ship. We picked all three. That’s the company.

Our model. Theirs. Whichever wins the turn.

We trained our own voice model on revenue calls - plus a routing model that picks the right model for each turn, mid-call. Ours when we’re sharper, a frontier LLM when it is.

Trained on revenue calls, not podcasts.

Most voice models are fine-tuned on podcasts and audiobooks. Ours is trained on the actual calls revenue teams run - cold outbound, qualifying, and renewals - bringing fluency to the exact moments that close deals.

Carrier-grade telephony infrastructure.

We built a production-grade carrier network from scratch. harmony.ai natively handles hot transfers to live agents, active spam-number mitigation, instant phone provisioning, and geo-optimized routing.