Agentic retrieval techniques: a complete guide
Blog post from Redis
Agentic retrieval is an advanced architectural pattern where a large language model (LLM)-powered agent dynamically controls the retrieval process, iterating and adapting its queries until satisfactory results are obtained, unlike traditional retrieval-augmented generation (RAG) which follows a static pipeline. This approach is crucial in modern AI systems where agents must gather evidence across multiple steps, enhance response generation, and refine their search strategies in real-time, often using tools like Redis Iris to integrate memory, live data, and retrieval in a seamless, low-latency manner. Techniques such as hybrid search, multi-level retrieval, reranking, and semantic caching optimize the retrieval process, ensuring that agents not only locate the necessary information but also maintain continuity and context across interactions. Redis Iris plays a pivotal role by serving as a context engine, unifying retrieval, caching, and memory into a singular in-memory platform, thereby supporting the agent's dynamic decision-making and ensuring it has access to fresh, relevant data at every iteration.
| Trend | Post Mentions | Total Month Mentions | Posts | Companies | MoM |
|---|---|---|---|---|---|
| LLM | 15 | 9,074 | 1,640 | 224 | +53% |
| RAG | 15 | 2,105 | 333 | 83 | +124% |
| Vector Search | 6 | 2,268 | 422 | 128 | +30% |
| AI Agents | 2 | 4,942 | 1,264 | 250 | +12% |
| MCP | 2 | 7,098 | 726 | 186 | +16% |
| Real-time | 2 | 5,735 | 1,391 | 247 | -9% |
| Data Pipeline | 1 | 624 | 230 | 79 | -19% |
| Observability | 1 | 3,421 | 707 | 180 | -24% |
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