# Synthflow alternatives

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Other AI voice agents tools, ranked by monthly US searches.

1. [Retell AI](https://gtmshortlist.ai/retell-ai.md): Build, test and deploy AI phone agents. 18,100 searches/mo.
2. [Bland AI](https://gtmshortlist.ai/bland-ai.md): Enterprise platform for AI phone calls at volume. 5,400 searches/mo.
3. [Vapi](https://gtmshortlist.ai/vapi.md): Developer platform for building voice AI agents. 4,400 searches/mo.
4. [Air AI](https://gtmshortlist.ai/air-ai.md): AI phone agents for long sales and service calls. 1,300 searches/mo.