> using OpenAI's realtime API for voice-to-voice responses

Does it mean it use this expensive open ai audio model in the app? Don't you worry this will make it bankrupt if app goes viral and not monetised?

Can you share what's your strategy here, like topup $2000 open ai account as kind of marketing expenses for users to try for free? Genuine questions since planning to use openai audio API in other case and this kind of expensive price worry me a lot even if switching to new mini-transcribe and mini-tts