Voyage AI

Voyage AI provides embedding and reranker models focused on retrieval quality for RAG. Its embeddings include general-purpose and domain-specific variants (finance, legal, code) plus multimodal options, and its rerank models re-score retrieved candidates with instruction-following support.

It is a usage-based API with a free tier, and was acquired by MongoDB. Used by teams building retrieval pipelines who want stronger relevance than first-pass vector search alone.