[D] What is the business model for companies using LLMs?

I am wondering about companies that are successfully using LLMs in their product, or attempting to develop products around LLM.

It seems like at the moment that there are a number of companies building businesses around creating and selling access to LLM. However, there seems to be a gap between in industry between creating LLMs and using the LLM to do something in the "real world." Essentially, I am curious about companies that are purchasing access to LLM from a company such as OpenAI and then making use of these models in their products.

So far, I can think of a few cases where they might use a LLM:

• Using the output from a LLM in a search result and then placing ads alongside the search (such as Bing's new search)
• Generating web content (such as BuzzFeed)
• Improving automated customer support using LLMs---though I don't know of a specific company using LLMs for this yet.

Based on the examples I have so far, it seems like the examples are limited to where the LLM's hallucinations are not a major issue and where the output of the LLM can be directly passed back to the human user of a product.

I am wondering if there are any other examples of companies successfully using LLMs in their product that anyone can think of.