If you're looking for a Retell AI alternative, Voiceflow is a good choice. It's a collaborative platform for building, launching and scaling chat and voice AI agents. Features like a knowledge base import, multi-step workflows and centralized data management make it a good choice for integrating with other services, and it's good for automating customer support, building in-app copilots and designing conversations. It has four pricing tiers, including a free Sandbox plan, so it should be available for your business needs.
Another alternative is boost.ai, an enterprise-focused conversational AI service designed to improve customer satisfaction and automate customer service. It uses AI chat and voice bots for personalized interactions and can handle high traffic volumes without breaking the bank. Features like generative AI, omnichannel consistency and a hybrid approach combining human and virtual agents means boost.ai can scale and be secure with easy integration with existing systems. It's designed to increase self-service rates and automate customer service.