{"slug":"voyage-voyage-4-large","name":"Voyage voyage-4-large","domain":null,"verdict":"As of 2026-08-10, ChatGPT, Claude, Gemini, Grok collectively rank Voyage voyage-4-large #2 of 15 for long-context embedding apis for document rag. Source: https://modelsagree.com/product/voyage-voyage-4-large (modelsagree.com, CC BY 4.0).","best_rank":2,"categories":1,"entries":[{"slug":"best-long-context-embedding-apis-for-document-rag","title":"Best long-context embedding APIs for document RAG","rank":2,"of":15,"score":8,"appearances":2,"modelRanks":{"ChatGPT":2,"Grok":2},"reason":"Best conventional text-embedding API, combining leading retrieval quality, 32K context, multilingual support, selectable 256–2048 dimensions, and excellent price-performance; near-tied with Cohere Embed 4, but stronger for text-first RAG","reasons":[{"model":"ChatGPT","reason":"Best conventional text-embedding API, combining leading retrieval quality, 32K context, multilingual support, selectable 256–2048 dimensions, and excellent price-performance; near-tied with Cohere Embed 4, but stronger for text-first RAG"},{"model":"Grok","reason":"Consistently leads or near-leads retrieval quality benchmarks (MTEB/RTEB-style) with 32k context, Matryoshka dimensions, multiple quantizations, and shared embedding space across the family; domain-tuned variants available; practical for high-stakes document RAG where accuracy compounds"}],"fixes":[{"model":"ChatGPT","fix":"It still requires practitioners to design and maintain chunking because each chunk is embedded independently"},{"model":"Grok","fix":"Context length trails Cohere; proprietary with no self-host path for the flagship"}],"updated":"2026-08-10","rank_history":{"days":["2026-08-03","2026-08-10"],"ranks":[5,2]},"api":"https://modelsagree.com/api/v1/best/best-long-context-embedding-apis-for-document-rag.json"}],"page":"https://modelsagree.com/product/voyage-voyage-4-large","check":"https://modelsagree.com/check?q=Voyage%20voyage-4-large","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}