Heroku AI now supports Amazon Rerank 1.0 and Cohere Rerank 3.5 models
Change effective on 15 January 2026
Heroku’s Managed Inference and Agents add-on now supports Amazon Rerank 1.0 and Cohere Rerank 3.5.
Reranking models score documents based on their semantic relevance to a query. You can use them to improve response quality in retrieval-augmented generation (RAG) systems, semantic search, and question-answering applications.
To learn more about using these models on Heroku, see our documentation for Amazon Rerank 1.0, Cohere Rerank 3.5, and the new /v1/rerank endpoint.