Vectara

Vectara is an enterprise agent platform for building governed, grounded AI agents across SaaS, customer-managed VPC and on-premise deployments. It supplies its own RAG stack: the Boomerang retrieval and embedding model, the Slingshot multilingual reranker, the Mockingbird generative model tuned for RAG and structured output, and the Hughes Hallucination Evaluation Model behind its Factual Consistency Score. It is model-agnostic with bring-your-own-model support for ChatGPT, Claude and Gemini, and natively handles complex multimodal documents spanning text, tables and images.