CohereRerankerOptions

Properties

apiKey?

optional apiKey?: string;

Cohere API key. If not provided, reads from the COHERE_API_KEY environment variable at call time.

---

baseUrl?

optional baseUrl?: string;

Cohere API base URL. Override for proxied or self-hosted endpoints. Default: ‘https://api.cohere.com/v2’.

---

maxCharsPerDoc?

optional maxCharsPerDoc?: number;

Maximum characters of document text to send per candidate. Cohere’s rerank API accepts up to 4096 tokens per document; truncating to character limit avoids oversized requests. Default: 4000.

---

model?

optional model?: string;

Cohere rerank model identifier. Default: ‘rerank-v3.5’.

---

topK?

optional topK?: number;

Maximum number of results to return after reranking. Default: 5.