Voyage 4

Voyage 4 is Voyage AI's embedding model family released in January 2026 (exact day not confirmed), shipping in four sizes: voyage-4, voyage-4-large, voyage-4-lite, and voyage-4-nano. The family is positioned on retrieval accuracy for RAG and search workloads; MongoDB's benchmarking of the release highlighted voyage-4 as setting a new standard for retrieval accuracy in its tests.

Notably, voyage-4-nano is released as open weights, a first for the company's flagship line, while the larger tiers are served via the Voyage API. Companion models voyage-code-4 and voyage-multimodal-4 extend the family to code and multimodal retrieval.