Yes, there are online AI answer engines available. Two notable examples include:

  1. iAsk.Ai: This is an AI-powered answer engine that utilizes a large-scale Transformer language-based model and is designed to provide instant, accurate, and factual answers. iAsk.Ai's search engine aims to offer objective, factually-based responses by training its model on reliable and authoritative literature and website sources.

  2. Perplexity is another AI-based answer engine that offers a conversational AI search experience. It's built on OpenAI's GPT-3.5 model and is capable of providing precise answers to complex questions, synthesizing content from multiple sources. The service is transparent and presents sources for its answers.

Both iAsk.Ai and aim to deliver accurate and direct answers to users' questions, providing an alternative to traditional search engines. Additionally, Bing Chat, powered by GPT 4, is an AI-powered chatbot integrated into the Bing search engine, capable of responding to diverse prompts effectively and conversationally.