Which AI Voice Agents to use in 2025?

AI voice agents in 2025 are characterized by increased naturalness, advanced AI capabilities, and broader integration into various sectors, including healthcare, finance, and retail. They leverage advanced NLP and LLMs to understand and respond to user requests with greater accuracy and context. On my experience, platforms like Voiceflow, Synthflow and Coldi allow users to build AI voice agents without coding, making them accessible to a wider range of users, offering intuitive interfaces and drag-and-drop functionality, enabling rapid prototyping and deployment. Which Ai voice agents do you use?