Voice Logica vs Retell AI
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Retell AI is a voice bot platform for developers and agencies, priced by components. Voice Logica runs the whole customer service operation: the AI agent, your team’s phones and chats, AI on your people’s calls, the CRM and the analysis, at one price per minute, with data in the EU.
Details on Retell come from its public website and documentation, read in October 2026.
Voice Logica’s advantages
Section titled “Voice Logica’s advantages”Pricing independent of prompt size
Section titled “Pricing independent of prompt size”Retell bills the call as longer than it was once the agent goes over 4,000 tokens. Its documentation: billed duration = real duration × (prompt tokens ÷ 4,000), counting the prompt, tool descriptions, the transcript, tool results and the retrieved knowledge. A real business agent with an 8,000-token prompt and knowledge turns a 3-minute call into about 6 billed minutes, and every per-minute component doubles with it. On top: USD 8 per knowledge base per month after the first 10, USD 0.005 per batch dial, USD 0.10 per call for branded caller ID, and USD 8 a month per extra concurrent call.
On Voice Logica the plan minute includes the AI model, speech recognition and the voice, whatever the size of the prompt, the knowledge or the tool list. Campaigns, caller IDs and knowledge bases are not billed per item, and call analysis is included. Every call runs on a top OpenAI model on OpenAI’s priority servers, for lower latency, at no extra cost.
AI for your staff’s calls
Section titled “AI for your staff’s calls”Retell states that its monitoring covers AI agent calls, not human agents, and it has no phone system for your staff.
Voice Logica puts your people on the same system as the AI: softphones, the Windows and mobile apps, user groups and conference rooms. In the Windows app they see the call transcribed live, a supervisor can listen in to live calls from Calls, and their calls are recorded, summarised and analysed. When the AI transfers a caller to a teammate, their screen shows who is calling, why, the customer’s CRM details and recent calls, so the caller never repeats themselves. Chats hand over to a teammate in the same thread in Live Support.
EU data hosting, Greek language and your existing line
Section titled “EU data hosting, Greek language and your existing line”- EU hosting on every plan, ISO 27001 and 27701. Retell processes in US regions; the media can stay in the EU only if you bring an EU carrier.
- Greek is native, with natural Greek voices. Greek is not in Retell’s published language list.
- Greek systems built in: ERPs, e-shops, couriers and hotel systems. See Integrations.
- Office PBXs and Greek carriers, with no open ports, and an edge device for closed networks.
- No developers needed: the agent is built from your website, and Claude or ChatGPT can manage it through the MCP connector.
At a glance
Section titled “At a glance”| Voice Logica | Retell AI | |
|---|---|---|
| Price | One price per minute in euros, AI included, from EUR 49/month | Per component: infrastructure, voice, model and telephony |
| Prompt size changes the price | No | Yes, above 4,000 tokens the call is billed as longer |
| Per-item charges | None | Knowledge bases, batch dials, branded caller ID, numbers, concurrency |
| Phone system for your staff | Yes | No |
| AI on your staff’s calls | Live transcription, listen-in, recording and analysis | No, AI calls only |
| Live chat handoff to your team | Yes, same thread | No |
| Greek | Native, Greek voices | Not in the published list |
| EU hosting | Every plan | No, US processing |
| Certifications | ISO 27001, ISO 27701, GDPR DPA | SOC 2 Type II, ISO 27001, HIPAA, GDPR DPA |
Where Retell may fit better
Section titled “Where Retell may fit better”- Pay as you go with no monthly commitment, for low or irregular volume.
- A choice of AI model per agent.
- A self-serve HIPAA agreement for US healthcare.
Switching
Section titled “Switching”See Switch from another platform.