# AI voice agents

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AI voice agent platforms let you build, test and run phone agents that hold spoken conversations, connected to your phone numbers, calendars and CRM.

- Tools listed: 5
- Updated: Nov 3, 2026
- Ranked by: US searches per month
- Category demand: 4,400 searches/mo for “ai voice agent” (Semrush, October 2026)

## Ranked list

1. [Retell AI](https://gtmshortlist.ai/retell-ai.md): Build, test and deploy AI phone agents. 18,100 US searches/mo for “retell ai” (Semrush, October 2026). Unclaimed. Pricing: From $0.07 per minute. Free trial: Free trial. Source: https://www.retellai.com/pricing. Checked: 2026-11-03T06:42:58.917+00:00.
2. [Bland AI](https://gtmshortlist.ai/bland-ai.md): Enterprise platform for AI phone calls at volume. 5,400 US searches/mo for “bland ai” (Semrush, October 2026). Unclaimed. Pricing: From $0.14 per minute. Free trial: Not mentioned on their pricing page. Source: https://www.bland.ai/pricing. Checked: 2026-11-03T06:43:33.212+00:00.
3. [Vapi](https://gtmshortlist.ai/vapi.md): Developer platform for building voice AI agents. 4,400 US searches/mo for “vapi ai” (Semrush, October 2026). Unclaimed. Pricing: From $0.05 per minute. Free trial: Not mentioned on their pricing page. Source: https://vapi.ai/pricing. Checked: 2026-11-03T06:44:09.186+00:00.
4. [Synthflow](https://gtmshortlist.ai/synthflow.md): No-code builder for AI voice agents. 2,400 US searches/mo for “synthflow” (Semrush, October 2026). Unclaimed. Pricing: Custom pricing, contact sales. Free trial: No free trial. Source: https://synthflow.ai/pricing. Checked: 2026-11-03T06:44:47.626+00:00.
5. [Air AI](https://gtmshortlist.ai/air-ai.md): AI phone agents for long sales and service calls. 1,300 US searches/mo for “air ai” (Semrush, October 2026). Unclaimed. Pricing: See pricing on their site. Free trial: Not mentioned on their pricing page. Source: https://www.air.ai/pricing. Checked: 2026-11-03T06:45:13.997+00:00.

## How to choose an AI voice agent platform

- **Latency and voice quality:** Test live calls for response delay, how it handles interruptions and how natural it sounds.
- **How you build:** Compare no-code builders with developer APIs, depending on who on your team will build the agents.
- **Telephony and cost:** Check phone number support, call transfer and per-minute pricing at your expected call volume.

## AI voice agent platform questions

### What is an AI voice agent?

Software that holds spoken phone conversations. It listens, understands, replies with a synthetic voice and takes actions such as booking an appointment or updating a record.

### What are AI voice agents used for in business?

Answering inbound calls, booking appointments, qualifying leads, following up on missed calls, sending reminders and running outbound outreach.

### How do you build an AI voice agent?

Most platforms let you write the agent’s instructions, connect knowledge and tools like calendars or CRMs, pick a voice and phone number, then test calls before going live.

### What should I look for in an AI voice agent vendor?

Low response latency, reliable call transfer, testing and monitoring tools, integrations with your systems, and pricing that fits your call volume.


## Popular comparisons

- [Bland AI vs Retell AI](https://gtmshortlist.ai/compare/bland-ai-vs-retell-ai.md)
- [Retell AI vs Vapi](https://gtmshortlist.ai/compare/retell-ai-vs-vapi.md)
- [Retell AI vs Synthflow](https://gtmshortlist.ai/compare/retell-ai-vs-synthflow.md)
- [Air AI vs Retell AI](https://gtmshortlist.ai/compare/air-ai-vs-retell-ai.md)
- [Bland AI vs Vapi](https://gtmshortlist.ai/compare/bland-ai-vs-vapi.md)
- [Bland AI vs Synthflow](https://gtmshortlist.ai/compare/bland-ai-vs-synthflow.md)
- [Air AI vs Bland AI](https://gtmshortlist.ai/compare/air-ai-vs-bland-ai.md)
- [Synthflow vs Vapi](https://gtmshortlist.ai/compare/synthflow-vs-vapi.md)
- [Air AI vs Vapi](https://gtmshortlist.ai/compare/air-ai-vs-vapi.md)
- [Air AI vs Synthflow](https://gtmshortlist.ai/compare/air-ai-vs-synthflow.md)

## Related categories

- [AI receptionists](https://gtmshortlist.ai/ai-receptionist.md)
- [AI call center](https://gtmshortlist.ai/ai-call-center.md)
- [AI customer service agents](https://gtmshortlist.ai/ai-customer-service-agents.md)

## About this list

Tools are ordered by monthly US searches for each tool’s name, from Semrush, October 2026. Ties are alphabetical. Sponsored spots are labeled and never change rank. Last checked Nov 3, 2026. Method: https://gtmshortlist.ai/methodology.md