# rerankers.update Updates an existing reranker configuration including display information, endpoint configuration, model parameters, credentials, and labels. All fields are optional - only specified fields will be updated. IMMUTABLE FIELDS: providerType and ownerId cannot be changed after creation. SUPPORTED_MODALITIES UPDATE: If the array contains >=1 elements, it replaces the stored set; if empty or omitted, no change occurs and it does not count as an update by itself. Returns ALREADY_EXISTS if update would create an equivalent reranker configuration for this owner after endpoint canonicalization and provider-default resolution (HTTP 409 Conflict / ALREADY_EXISTS). Requires UPDATE_RERANKER on the requested reranker. This operation is idempotent. ```ts update(id: string, request: UpdateRerankerRequest, requestOptions?: RequestOptions): Promise ``` [rerankers](../rerankers.md) · [TypeScript](../../typescript.md) Related types — open only those used by your request: - [RequestOptions](../models/RequestOptions.md) - [UpdateRerankerRequest](../models/UpdateRerankerRequest.md)