Grok has just launched the Collections API, opening new doors for developers. You can now directly upload PDFs, Excel spreadsheets, and even entire codebases, and the system will automatically create a searchable knowledge base. This means you can quickly build RAG applications, saving the hassle of setting up your own indexing and retrieval framework. The key point is that Grok has performed impressively in multiple evaluations—ranking first in critical metrics such as financial data table processing, making it a great choice for applications that require precise data handling.