Google's release of Gemini 1.5 Pro, featuring a 1 million token context window, has sparked interest in the AI community due to its impressive performance in synthesizing information across multiple documents. While some believe this advancement could render Retrieval-Augmented Generation (RAG) obsolete, others argue that new RAG architectures will be necessary to address emerging use cases and challenges, such as managing large document corpuses and optimizing cost and latency. LlamaIndex is committed to developing tools for these evolving contexts, emphasizing the framework's adaptability and integration capabilities. Despite Gemini's strengths in recall and summarization, it faces challenges with processing complex tables and maintaining accuracy in citations. The blog post explores potential solutions like intelligent routing and retrieval-augmented caching to balance the trade-offs between context length, cost, and latency, while highlighting the ongoing evolution of LLM architectures and the future of intelligent applications.