MongoDB Voyage 4: New Accuracy Standard for RAG

On January 15, 2026, MongoDB announced the release of the Voyage 4 model family, specifically optimized for vector search and ranking tasks. The update aims to improve RAG (Retrieval-Augmented Generation) architecture in enterprise applications.

Key features of Voyage 4 include increased context retrieval accuracy and support for multimodal embeddings. This is critical for production systems where retrieval errors lead to model hallucinations. MongoDB is betting that the database should not just be storage, but an intelligent engine for AI, available even for on-device scenarios.

Source: PR Newswire / MongoDB