Bolna powers recruitment voice agents with ElevenLabs

Bolna (Bolna.ai)  is a Voice AI platform designed for recruitment. Their agents conduct interviews, answer candidate questions, and manage hiring workflows – automating critical tasks while keeping the experience human.

To achieve this, voice quality is non-negotiable. Agents need to sound fluent, clear, and inviting for candidates to want to have the conversation . That’s why Bolna chose ElevenLabs.

Why Bolna chose ElevenLabs

In early 2024, Bolna integrated several Text to Speech providers into their orchestration layer. ElevenLabs’ Text to Speech model  quickly stood out – not only for its natural voice quality but also for low latency and fluency improvements made possible by the Multi-Context WebSocket API.

The integration was seamless, support was consistent, and the results were immediate.

Personalized voice agents for hiring use cases

Bolna gives its users access to hundreds of voices from the ElevenLabs Voice Library – or lets them create custom ones. That means recruiters can tailor agents to sound professional, friendly, or energetic depending on the use case:

• “Monica” for thoughtful, inquisitive interviews
• “Sheps Rocky” for upbeat announcements
• “Wendy” for calm, reassuring responses

With full control over tone and persona, recruiters can deploy voice agents that align with their brand and goals.

ElevenLabs outperforms every other Text to Speech provider on conversion

Bolna’s platform supports multiple Text to Speech integrations, letting users test and choose what works best for them. The data surfaced a clear pattern:

• ~65% of all agents were built using ElevenLabs
• Among recurring, paying customers, 90% chose ElevenLabs

These weren’t just preferences, they were performance signals. ElevenLabs-powered agents delivered more meaningful candidate conversations and better completion rates. Bolna has since made ElevenLabs the default provider.

95% of conversations reach completion

Once a candidate stays on the call for over a minute, there’s a 95% chance the conversation runs to completion. That includes interviews lasting up to 25 minutes – with minimal drop-off or fatigue.

For hiring teams, that means more engaged applicants. For candidates, it means more natural, productive conversations.

"I applied for Bolna’s Founding Engineer role and had a long conversation with Sara (AI) not only about my skills but also regarding my career goals. I never felt uncomfortable that I was speaking to an AI. In fact, I felt like I was speaking to someone who was genuinely interested in my achievements… From the quick responses, pauses, handling my interruptions, and especially, speaking in a way that made me feel enthusiastic to continue the conversation, I was very impressed.", said Mujeer, Founding Engineer, Bolna

See a McKinsey-style case interview in action

Watch an AI interview agent conduct a McKinsey-style case interview on Bolna: