Retrieval-focused embedding and reranking APIs

Voyage AI

MongoDB-owned retrieval models offered through Voyage AI APIs and additional distribution routes for text, code, multimodal embeddings, and reranking.

Editorial verdict

Choose Voyage AI when representative evaluation shows a meaningful retrieval advantage and its active model family, dimensions, distribution route, data handling, price, and re-embedding plan fit.134

Best for

  • Teams optimizing retrieval relevance on domain-specific corpora
  • Code, multilingual, or multimodal retrieval supported by current Voyage models
  • Products able to govern model-space compatibility and re-embedding
134

Not ideal for

  • Teams prioritizing one broad generation provider over specialized retrieval
  • Projects without a retrieval evaluation set
  • Systems that cannot absorb model or embedding-space migration
134
Main trade-off

Specialized retrieval models may improve relevance or efficiency while adding another provider, model lifecycle, re-embedding, reranking, data, and distribution dependency.134

Product boundary

Whether Voyage AI's current retrieval models deliver enough corpus-specific quality or efficiency to justify their service, model-space, pricing, and migration boundary.

Voyage AI is part of MongoDB but its models remain directly available beyond MongoDB. This page covers Voyage embedding and reranking models, not Atlas Vector Search, vector storage, or general RAG architecture.134

For: Teams prepared to benchmark retrieval-focused embeddings and rerankers against their own documents and queries

  • Another provider wins corpus-specific evaluation
  • The selected model family or distribution route does not meet data requirements
  • Re-embedding and provider migration cost outweigh the relevance benefit

Why teams consider Voyage AI

  • Retrieval focusVoyage publishes embedding families for general, code, multilingual, contextual, and multimodal retrieval.134
  • RerankingSeparate reranker endpoints support a second relevance stage after candidate retrieval.134
  • Distribution choicesVoyage models remain directly available and are also distributed through selected cloud and MongoDB routes.134

Pricing

Usage pricing varies across text tokens, multimodal pixels, reranker tokens, Batch, Files storage, and fine-tuned or dedicated arrangements.3

Current decision boundary

Usage-based embedding and reranking APIs

Verified 2026-07-27: Voyage publishes model-specific token, pixel, reranking, batch, and file-storage pricing with current free allowances; production estimates must exclude temporary allowances.3

Text models
Token-based by active model3
Multimodal
Text tokens plus image or video pixels3
Migration
Re-embedding, reranking, storage, and evaluation remain application costs3
Pricing checked View official pricing

Voyage AI vs alternatives

OpenAI API

Choose when
Products needing a broad managed model and tool surface
Avoid when
Teams requiring self-operated model weights or another cloud control plane
Compared with Voyage AI
A broad managed platform reduces model-serving and integration work while increasing dependence on OpenAI-specific models, APIs, pricing meters, policies, and migration schedules.567

Cohere Embed and Rerank

Choose when
Teams evaluating embedding and reranking together
Avoid when
Teams that only need the provider already used for generation
Compared with Voyage AI
Retrieval-focused models and reranking can improve relevance while adding a model provider, extra request stage, rate limits, token cost, evaluation work, and migration risk.8910

Google Gemini API

Choose when
Applications benefiting from Gemini's current multimodal model surface
Avoid when
Teams that need Vertex-specific governance but are evaluating only the Developer API
Compared with Voyage AI
A broad Google model surface and one SDK reduce integration work while free-versus-paid data terms, model stages, quotas, pricing, and Vertex separation require active governance.111213

Resources and sources

Official product, pricing, policy, and lifecycle sources

  • Voyage AI text embeddings
    Open
  • Voyage AI rerankers
    Open
  • Voyage AI pricing
    Open
  • Voyage AI joining MongoDB
    Open
  1. 1
    Voyage AI text embeddings

    Voyage AI · Accessed Official

  2. 2
    Voyage AI rerankers

    Voyage AI · Accessed Official

  3. 3
    Voyage AI pricing

    Voyage AI · Accessed Official

  4. 4
    Voyage AI joining MongoDB

    Voyage AI · Accessed Official

  5. 5
    OpenAI API model catalog

    OpenAI · Accessed Official

  6. 6
    OpenAI API pricing

    OpenAI · Accessed Official

  7. 7
    OpenAI API data controls

    OpenAI · Accessed Official

  8. 8
    Cohere Embed models

    Cohere · Accessed Official

  9. 9
    Cohere Rerank models

    Cohere · Accessed Official

  10. 10
    Cohere pricing

    Cohere · Accessed Official

  11. 11
    Gemini API models

    Google · Accessed Official

  12. 12
    Gemini Developer API pricing

    Google · Accessed Official

  13. 13
    Gemini API additional terms

    Google · Accessed Official