model

String

Default: rerank-english-v2.0

Cohere model name. Check the list of supported models in the Cohere documentation.
Required.

top_k

Integer

Default: 10

The maximum number of documents to return. Required.

api_key

Secret

Default: {"type": "env_var", "env_vars": ["COHERE_API_KEY", "CO_API_KEY"], "strict": False}

Cohere API key.
Required.

api_base_url

String

Default: https://api.cohere.com

The base URL of the Cohere API. Required.

max_chunks_per_doc

Integer

Default: None

If your document exceeds 512 tokens, this determines the maximum number of chunks a document can be split into. If None, the default of 10 is used. Check Cohere docs for more information.
Optional.

meta_fields_to_embed

List of strings

Default: None

List of metadata fields to concatenate with the document content for reranking.
Optional.

meta_data_separator

String

Default: \n

Separator used to concatenate the meta fields to the document content. Required.