# Generative and reranker models :::callout{intent="tip" title="Embedding models / Vectorizers"} Visit the [Vectorizer and vector config](vector-config.md) guide to find out how to configure an embedding model for your collection or to fine-tune the vector index settings. ::: ## Specify a reranker model integration Configure a [`reranker`](../search/index.md#rerank) model integration for [reranking retrieved results](../how-to-query-search/rerank.md). :::callout{intent="info" title="Related pages"} - [Available reranker model integrations](../model-provider-integrations/index.md) ::: :::code-group{sync="languages"} ```python title="Python" {6} from weaviate.classes.config import Configure, Property, DataType client.collections.create( "Article", vector_config=Configure.Vectors.text2vec_openai(), reranker_config=Configure.Reranker.cohere(), ) ``` ```typescript title="JavaScript/TypeScript" import { vectors, reranker } from 'weaviate-client'; ``` ```go title="Go" articleClass := &models.Class{ Class: "Article", Description: "Collection of articles", Vectorizer: "text2vec-openai", ModuleConfig: map[string]interface{}{ "reranker-cohere": map[string]interface{}{ "model": "rerank-v3.5", }, }, } ``` ```java title="Java" client.collections.create("Article", col -> col.vectorConfig(VectorConfig.text2vecTransformers()) .rerankerModules(Reranker.cohere()) .properties(Property.text("title"))); ``` ```csharp title="C#" await client.Collections.Create( new CollectionCreateParams { Name = "Article", VectorConfig = Configure.Vector("default", v => v.Text2VecTransformers()), RerankerConfig = Configure.Reranker.Cohere(), Properties = [Property.Text("title")], } ); ``` ::: ## Update the reranker model integration :::callout{intent="info" title="Available from `v1.25.23`, `v1.26.8` and `v1.27.1`"} The `reranker` and `generative` configurations are mutable from `v1.25.23`, `v1.26.8` and `v1.27.1`. ::: Update the [`reranker`](../search/index.md#rerank) model integration for [reranking retrieved results](../how-to-query-search/rerank.md). :::code-group{sync="languages"} ```python title="Python" {6} from weaviate.classes.config import Reconfigure collection = client.collections.use("Article") collection.config.update( reranker_config=Reconfigure.Reranker.cohere() # Update the reranker module ) ``` ```typescript title="JavaScript/TypeScript" import { reconfigure } from 'weaviate-client'; ``` ```go title="Go" updatedArticleClassConfig := &models.Class{ // Note: The new collection config must be provided in full, // including the configuration that is not being updated. // We suggest using the original class config as a starting point. Class: "Article", ModuleConfig: map[string]interface{}{ "reranker-cohere": map[string]interface{}{ "model": "rerank-v3.5", }, }, } ``` ```java title="Java" var collection = client.collections.use("Article"); collection.config.update(col -> col.rerankerModules(Reranker.cohere())); ``` ```csharp title="C#" var collection = client.Collections.Use("Article"); await collection.Config.Update(c => { c.RerankerConfig = Configure.Reranker.Cohere(); }); ``` ::: ## Specify a generative model integration Specify a `generative` model integration for a collection (for RAG). :::callout{intent="info" title="Related pages"} - [Available generative model integrations](../model-provider-integrations/index.md) ::: :::code-group{sync="languages"} ```python title="Python" {6-8} from weaviate.classes.config import Configure, Property, DataType client.collections.create( "Article", vector_config=Configure.Vectors.text2vec_openai(), generative_config=Configure.Generative.openai( model="gpt-4o" # set your generative model (optional parameter) ), ) ``` ```typescript title="JavaScript/TypeScript" import { vectors, generative } from 'weaviate-client'; ``` ```go title="Go" articleClass := &models.Class{ Class: "Article", Description: "Collection of articles", Vectorizer: "text2vec-openai", ModuleConfig: map[string]interface{}{ "generative-openai": map[string]interface{}{ "model": "gpt-4o", }, }, } ``` ```java title="Java" client.collections.create("Article", col -> col.vectorConfig(VectorConfig.text2vecTransformers()) .generativeModule(Generative.cohere()) .properties(Property.text("title"))); ``` ```csharp title="C#" await client.Collections.Create( new CollectionCreateParams { Name = "Article", VectorConfig = Configure.Vector("default", v => v.Text2VecTransformers()), GenerativeConfig = Configure.Generative.Cohere(), Properties = [Property.Text("title")], } ); ``` ::: ## Update the generative model integration :::callout{intent="info" title="Available from `v1.25.23`, `v1.26.8` and `v1.27.1`"} The `reranker` and `generative` configurations are mutable from `v1.25.23`, `v1.26.8` and `v1.27.1`. ::: Update a [`generative`](../search/index.md#retrieval-augmented-generation-rag) model integration. :::code-group{sync="languages"} ```python title="Python" {6} from weaviate.classes.config import Reconfigure collection = client.collections.use("Article") collection.config.update( generative_config=Reconfigure.Generative.cohere() # Update the generative module ) ``` ```typescript title="JavaScript/TypeScript" import { reconfigure } from 'weaviate-client'; ``` ```go title="Go" updatedArticleClassConfig := &models.Class{ Class: "Article", ModuleConfig: map[string]interface{}{ "generative-cohere": map[string]interface{}{}, }, } ``` ```java title="Java" var collection = client.collections.use("Article"); collection.config.update(col -> col.generativeModule(Generative.cohere())); ``` ```csharp title="C#" var collection = client.Collections.Use("Article"); await collection.Config.Update(c => { c.GenerativeConfig = Configure.Generative.Cohere(); }); ``` ::: :::callout{intent="tip"} You can [override the generative integration settings at query time](../how-to-query-search/generative.md#configure-a-generative-model-provider) without updating it in the collection configuration. ::: ## Further resources - [API References: REST: Schema](/weaviate/api/rest#tag/schema/post/schema) - [References: Configuration: Schema](../reference-configuration/collections.md) - [Concepts: Data structure](../concepts/data.md) ## Questions and feedback Have a question or feedback? 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