The AI Tea
In everyday words
You can ask questions about a folder of PDFs and images, and File Search can pull the right pages and show where the answer came from.
Need a meaning?
A pattern where a model retrieves relevant sources first, then answers using that retrieved context.References that point to the exact page or location in a source that supports an answer.
Quick Sip
What you need to know
- Who is affected
- developers, operators, product teams
- What changed
- On May 5, 2026, Google updated the Gemini API File Search tool with multimodal retrieval, custom metadata filtering, and page-level citations for RAG.
- Why it matters
- Multimodal retrieval and citations make it easier to build assistants that can show evidence, reduce wrong references, and search images alongside documents.
- What to watch next
- Watch how well the citations hold up at scale, and whether SDKs and third-party RAG tooling adopt the new File Search features quickly.
Four useful details
- File Search can retrieve relevant images and text in one query flow.
- Custom metadata filters help narrow retrieval to the right subset of files.
- Page-level citations show the specific page that supported a response.
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