Comparing Observe.AI and PolyAI? Both are Contact Center & CCaaS 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 | Observe.AI | PolyAI |
|---|---|---|
| Pricing | Paid · Custom | Per resolution · Custom (per-minute) |
| Founded | 2017 | 2017 |
| Categories | Agent Assist & Copilots Contact Center & CCaaS QA & Conversation Analytics Voice & Phone AI | Contact Center & CCaaS Enterprise Voice & Phone AI |
| Integrations | Amazon Connect Avaya 8x8 Aircall Jira BambooHR | Salesforce HubSpot Zendesk Microsoft Dynamics OpenTable Zapier |
Observe.AI made its name by fixing quality assurance, the least loved job in the contact center. Instead of a QA team sampling two percent of calls and arguing about scores, it transcribes and analyzes one hundred percent of interactions, scores them automatically against your rubrics, flags compliance risks, and turns the results into coaching. For support leaders it answers the questions that sampling never could: why are customers calling, which behaviors actually move CSAT, and which agents need help this week rather than at quarter end.
Founded in 2017 by Swapnil Jain and headquartered in Redwood City, the company raised a $125 million Series C led by SoftBank Vision Fund 2 in 2022, with Zoom as a strategic investor, and serves names like DoorDash, SoFi, Accolade, and Asurion. Like most of the conversation-intelligence category it has pushed aggressively into agents themselves: its VoiceAI agents now automate routine calls end to end, real-time assist guides live agents mid-conversation, and an Agent Harness handles the unglamorous work of testing and versioning AI agents before they meet customers.
The platform advertises more than 250 integrations across contact-center, CRM, and workforce systems, and pricing is custom, scoped to seat counts and interaction volume, with nothing published.
Observe.AI fits operations large enough that measuring conversations is a full-time problem: if you have dozens of agents or more and your QA process is a spreadsheet and good intentions, full-coverage automated scoring changes how you manage. Teams that just want a bot to deflect tickets have simpler options; teams that want to understand and improve every conversation, human or AI, should shortlist it.
Read the full Observe.AI listing → · See Observe.AI alternatives →
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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