Comparing PolyAI and Replicant? Both are Contact Center & CCaaS, Enterprise and Voice & Phone AI tools in the directory, which is why buyers put them on the same shortlist. Below is a side-by-side look at how they price, what they integrate with, and when each is the better fit, so you can pick on the facts rather than either vendor's own sales page.
| Attribute | PolyAI | Replicant |
|---|---|---|
| Pricing | Per resolution · Custom (per-minute) | Paid · Custom |
| Founded | 2017 | 2017 |
| Categories | Contact Center & CCaaS Enterprise Voice & Phone AI | Contact Center & CCaaS Enterprise Voice & Phone AI |
| Integrations | Salesforce HubSpot Zendesk Microsoft Dynamics OpenTable Zapier | Five9 Genesys Amazon Connect NICE Twilio Salesforce Service Cloud Zendesk ServiceNow |
PolyAI answers the phone. While most of this directory started with chat and added voice later, PolyAI has been voice-first since three Cambridge machine-learning PhDs, Nikola Mrkšić, Pei-Hao Su, and Tsung-Hsien Wen, founded it in London in 2017 out of the university's Machine Intelligence Lab. Its agents are known for sounding genuinely human and for surviving the things that break lesser systems: interruptions, accents, background noise, and callers who change their mind mid-sentence. Restaurants, hotels, banks, and utilities use it to answer every call instantly, day and night, with customers like PG&E, UniCredit, Golden Nugget, and Fogo de Chao on the roster.
The platform matured into what the company calls an agentic dialog platform: Agent Studio for building and managing agents without code, a developer kit for deeper work, and Raven, a proprietary conversation model trained on more than a billion enterprise conversations. Compliance boxes (SOC 2, HIPAA, PCI) are ticked, which matters because taking payments and health information over the phone is exactly where voice AI earns its keep.
Investors have noticed the wedge. In December 2025 PolyAI raised an $86 million Series D at a valuation around $750 million, with NVIDIA's venture arm participating, bringing total funding past $200 million. Commercially it bills on usage, priced per minute of conversation, with rates scoped to your call volume rather than published on the site.
Choose PolyAI when the phone is your problem. If most of your support pain is hold music, missed calls, and staffing the night shift, a voice-native specialist will beat a chat-first platform's bolted-on telephony, and PolyAI is one of the most proven voice specialists in the market.
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Replicant builds AI agents for enterprise contact centers, with voice as the flagship channel and chat and SMS alongside. Its agents pick up the phone, understand callers in natural language, and resolve routine requests end to end: roadside assistance dispatch, payments, order status, appointment scheduling. When a call needs a person, it hands off with full context. The company claims more than a billion minutes of production conversations, and its pitch is turning your best recorded calls into a testable AI agent quickly rather than scripting flows from scratch.
Replicant was founded in 2017 out of Atomic, the venture studio, with cofounders Benjamin Gleitzman (CTO) and Atomic's Jack Abraham; Gadi Shamia, previously COO of Talkdesk, joined as CEO in 2019. Customers have included AAA clubs and Xenial, the restaurant tech provider whose support lines serve Burger King and Wendy's locations. Funding totals roughly $113 million: a $27 million Series A led by Norwest in 2020 and a $78 million Series B led by Stripes in 2022, with Salesforce Ventures participating.
There are no published prices. Replicant sells three tiers (Quick Start, Professional, Enterprise) through a sales process, and billing is usage based, scaling with the conversation volume the AI actually handles. The company advertises a money back guarantee if results miss expectations, but budget for an enterprise procurement cycle, not a credit card signup.
Choose Replicant if you run a high volume contact center, want a vendor that owns deployment and tuning rather than a toolkit, and need connections into CCaaS and CRM systems like Five9, Genesys, Amazon Connect, Salesforce, and Zendesk. Skip it if you are a small team or a developer who wants self serve, per minute pricing: platforms like Retell AI or Vapi will get you a working phone agent the same afternoon, at published rates.
Read the full Replicant listing → · See Replicant alternatives →
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