What is the process for changing vectorizer model

I really appreciate the explanation, but it’s a bird’s eye view of the process whereas I need the steps. I want to change the schema from:

$schema = [
“class” => “SolrCopy01”,
“description” => “Class representing the SolrAI index”,
“vectorizer” => “text2vec-openai”,
“moduleConfig” => [
“generative-openai” => [
“model” => “gpt-3.5-turbo”,
],

to

$schema = [
“class” => “SolrCopy01”,
“description” => “Class representing the SolrAI index”,
“vectorizer” => “text2vec-openai”,
“moduleConfig” => [
“generative-openai” => [
“model” => “gpt-4o-mini”,
],

From the explanation above, it sounds like all I need to do is update the schema and I’m done. But, you also state that since I’m changing the vectorizer, I need to re-vectorize the content – which makes sense. And if that’s the case, I’m really talking about migrating content from SolrCopy01 to SolrCopy02, as opposed to just modifying the schema of SolrCopy01.

So, I still do not know how to proceed.