Comparing Posh AI and Retell AI? Both are AI Agents & Chatbots 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 | Posh AI | Retell AI |
|---|---|---|
| Pricing | Paid · Custom | Paid · $0.07/min |
| Founded | 2018 | 2023 |
| Categories | AI Agents & Chatbots Voice & Phone AI | AI Agents & Chatbots Voice & Phone AI |
| Integrations | Fiserv Jack Henry Symitar Corelation COCC Q2 Alkami Glia Genesys Cloud | Twilio Vonage Telnyx Cal.com n8n Make GoHighLevel custom SIP trunking |
Posh AI builds an agentic AI platform for banks and credit unions, covering both sides of the desk. Member facing products include a Voice Assistant for 24/7 phone support, a Digital Assistant for web and mobile chat, Posh Answers for help center search, and Posh Translate for live spoken interpretation. Employee facing tools include a Knowledge Assistant, a training Simulator, and CoachQA for conversation quality and compliance monitoring. All agents run inside Operating Procedures, Posh's framework for pairing LLM flexibility with code level control.
Karan Kashyap and Matt McEachern founded Posh in 2018 out of MIT, where both studied AI, and the Boston company remains independent and active as of mid 2026, with no acquisition on record. It raised a $27.5 million Series A led by Canapi Ventures in December 2021, with credit union industry funds Curql Collective and CMFG Ventures participating, and third party trackers put total funding around $45 million. Posh serves more than 100 financial institutions, including VyStar Credit Union, Citadel Credit Union, Camden National Bank, and Hudson Valley Credit Union. In late 2025 it relaunched Knowledge Assistant as an AI native workspace for agentic action.
Posh publishes no pricing. Everything is quote based per institution, shaped by asset size, products licensed, and integrations. The company leads with customer ROI stories instead, like Citadel's reported $660,000 in annual savings, so treat those as marketing anchors and negotiate accordingly. Expect a demo led sales cycle and implementation work that depends on your telephony and core stack; nothing about the process is self serve.
Choose Posh if you are a community financial institution that wants credible voice and chat automation plus employee copilots from a team that only does banking, with prebuilt hooks into cores like Fiserv, Symitar, and Corelation. Skip it if you are not a bank or credit union, or if you need transparent self serve pricing.
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Retell AI is a platform for building AI phone agents that answer and place calls. You compose an agent from interchangeable parts: a speech-to-text layer, your choice of LLM, a voice from providers like ElevenLabs, and telephony via Twilio, Vonage, Telnyx, or your own SIP trunk. The platform handles the hard real time bits, interruption handling, latency, call transfer, and IVR navigation, and adds testing, monitoring, and post call analysis aimed squarely at contact center and front desk workloads.
The company came out of Y Combinator's Winter 2024 batch, founded in 2023, with Evie Wang among the cofounders. It grew unusually fast for a seed stage company: a $4.6 million seed led by Alt Capital in September 2024 arrived alongside a reported $3 million in annual revenue within months of launch. Named customers include telehealth company Ro, plus BPOs and contact center operators.
Pricing is published and usage based, which is refreshingly rare. Retell quotes $0.07 to $0.31 per minute all in, depending on your voice and model choices, with components itemized: text-to-speech from $0.015 per minute, LLM costs from $0.003 to $0.16 per minute, US telephony around $0.015 per minute. Every account includes 20 concurrent calls, extra concurrency is $8 per line monthly, phone numbers cost $2 monthly, and new accounts get $10 in free credits. Enterprise plans with dedicated infrastructure are custom.
Choose Retell if you have some technical ability, want a working phone agent this week, and value published per minute economics you can model before committing. Its contact center tilt (batch calling, warm transfer, IVR traversal) makes it a natural fit for support lines. Look elsewhere if you want a fully managed enterprise deployment with a vendor doing the tuning, or a pure no-code experience for a non-technical team.
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