I don't think the grain market is growing as fast as the AI market
Think of LLMs as the understanding component in the brain, once you can understand instructions and what actions need to happen from those instruction you’re done.
The rest is integrations, the arms legs and eyes of langchain. Then memory and knowledge from semantic search, vector databases and input token limits.
The LLM is but the core of the entire ecosystem. Just like how MLOps is 99% of the work, choosing an LLM is 1% of the effort in the final product.