The #1 AI agent for all customer service, now on the phone
Fin's unrivaled performance, now on phone support. Fin Voice resolves calls quickly and efficiently with instant, natural conversations, so customers get faster answers and better experiences.
- Low latency, high accuracy
- Automated phone support

Natural conversations.
Instant answers.
Try the interactive demo to hear it in action.
Fin Voice is designed for spoken interactions: interruptions, follow-up questions, and changes in direction. It runs on Apex Flash, our latest Fin model, built for latency-sensitive tasks.
Most voice AI converts speech to text, processes it with a general model, then converts the answer back to speech. That adds latency and delivers answers from a model not built for customer service.
Apex Flash is different. Fine-tuned for customer service, it generates answers that are more accurate and structured for how speech sounds aloud. Alongside it, a real-time layer handles speech processing. Separating the two drives the performance gain.
Compared with the previous Fin Voice on general-purpose models, Fin Voice 2 on Apex Flash delivers a 24.5% higher average resolution rate.
The most natural, powerful voice agent for customer experience
Low latency, high accuracy
Fin produces quick responses that are accurate and structured, while sounding natural. It’s grounded in your knowledge base and trained to apply your specific policies on every call.
Resolves complex queries end-to-end
Verifying an identity, processing a refund, booking an appointment: not just answers - actions. Fin connects to your systems, takes the action, and resolves the call without a transfer.
Real-time insights for optimization
Get real-time insights with one-click recommendations to improve performance, outbound calling, automated follow-ups, performance monitoring, and more - your whole phone operation, easier to manage.
Test, refine, and launch with confidence
Preview Fin Voice before launch to see how it performs across real scenarios. Test calls, review transcripts, and validate performance, so you can go live with confidence.
See exactly how Fin responds to callers across FAQs, complex scenarios, and sensitive topics, so you know it always meets your standards before launch.

Drill into recordings, transcripts, and answer logic to understand why Fin responded the way it did, and fine-tune until it's right
Simulate escalations to teammates, workflows, or callbacks so you can be confident handoffs work seamlessly if customers need a human agent
Run fully simulated customer conversations to test Procedures from start to finish -- uncovering edge cases and catching regressions before launch.
Fin is trusted by thousands of customer service leaders.
Fin helps businesses deliver faster, higher-quality support and resolves over 2 million conversations weekly.
Apex Flash has spiked our Fin Voice resolution rate. Conversations sound more natural, and Fin Voice is doing more for us than ever as we head into our busiest season.”


On our B2C side, 65% of our volume comes through phone, and before Fin Voice we couldn’t staff enough to keep up. Now Fin Voice answers 100% of our calls instantly - no wait time, customers just start talking, and Fin gets them what they need.”

For us, the biggest change is speed and availability. Fin has reduced our handle time by 72%. A call that used to take over 3 minutes now takes less than 50 seconds – a much better experience for our customers.”
Built for the demands of Voice
Fine-tuned for customer service, it generates answers that are more accurate and structured for how speech sounds when delivered aloud. Alongside it, a real-time layer handles speech processing - audio, pacing, and conversational flow.
Fin picks up instantly at any hour of the day, providing fast, accurate answers with no wait times or phone menus.
01
Phone conversations feel natural, reflect your brand, and get resolved without IVR menus or long hold times.
02
Choose from an expanded library of natural voices and accents that fit your brand. Customize how Fin sounds for different audiences or support tiers.
03
The same experience,
across every channel
Wherever your customers are, Fin brings the same accuracy, reliability, and brand consistency to every interaction.

Your team manages Fin from one unified system. Update your knowledge base, guidance, or rules once and they apply everywhere automatically.
Monitor quality across voice, chat, and messaging conversations from one place. Get notified the moment a conversation falls below your standards, on any channel.
Seamlessly integrate with your existing telephony systems
Fin Voice works with your existing telephony setup and major providers, including Twilio, Genesys, Five9, Aircall, and more, so you can adopt without disruption. Get started with simple call-forwarding, or choose a deeper SIP integration for more control & analytics.




