Current chatbots still feel robotic due to unnatural speech patterns and pauses. A full-duplex speech API would enable simultaneous speaking and listening, creating fluid conversations.
Package this as a developer API with simple integration for major platforms. Charge per minute of conversation processed.
Start with a basic version supporting English with adjustable latency settings. The biggest risk is latency issues making conversations feel laggy.
Developers building voice interfaces would pay for more natural interactions in their apps.