OpenAI has released API endpoints for Whisper and for GPT-3.5-turbo, which is the actual language model behind ChatGPT. The GPT-3.5-turbo model is not only better for chat operations than regular GPT-3.5 but consumes much fewer resources, making it faster and cheaper. The full article demonstrates how to call the GPT-3.5-turbo API to build customized chatbots for the web. Source code is provided, along with an example chatbot.

source update: Building Customized Chatbots for the Web Using gpt-3.5-turbo, the… – Towards AI