If you're looking for a conversational AI that can answer complex questions and follow up with suggestions, xAI is a top contender. Its platform, called Grok, has a lot of abilities, including real-time knowledge, multimodal input and long context understanding (up to 128,000 tokens). It's good at handling tricky subjects, particularly programming and math, and can act as a research assistant to process data and generate new ideas. Grok is in early beta testing, but it should improve rapidly with feedback.
Another top contender is Gleen, a generative AI platform that uses GPT-4 and machine learning to provide authoritative and relevant answers. It can automate tasks and keep a running record of knowledge in a conversation, making it good for customer success, sales, marketing, IT help desks and other areas. Gleen also offers customizable Action Bots and integration with other services, and it's designed to be secure and efficient for customer support and other business uses.
If you want to go more data-centric, check out Glean. This platform uses your company's data to generate answers through Retrieval Augmented Generation (RAG) technology. It includes a knowledge graph, Glean Apps for no-code custom AI agents, and a scalable architecture with auditing controls. Glean is designed to make engineering, support and sales teams more productive with fast and relevant information.