Google has publicly released its latest AI model, Gemini, and LlamaIndex is a day-one launch partner, offering full support for all current and upcoming Gemini models, including Gemini Pro and Gemini Ultra. LlamaIndex supports both text-only and multimodal variants of Gemini, the latter allowing for input of text and images. The integration is feature-complete, supporting various combinations of streaming, synchronous, asynchronous, text completion, and chat message formats. Additionally, LlamaIndex has introduced the Semantic Retriever API, which incorporates storage, embedding models, retrieval, and language models into a Retrieval-Augmented Generation (RAG) pipeline. Gemini's Ultra variants outperform GPT-4 on benchmarks and exhibit joint image/text understanding in diverse domains. LlamaIndex also provides detailed guides and examples for utilizing Gemini's capabilities, such as structured data extraction and multimodal use cases. The Semantic Retriever further enhances retrieval quality with specialized embedding models and a tuned language model.