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 | 9,814 | 1,776 | 243 | +42% |
| RAG | 15 | 2,272 | 368 | 93 | +85% |
| Vector Search | 6 | 2,438 | 477 | 143 | +23% |
| AI Agents | 2 | 5,657 | 1,451 | 270 | -3% |
| MCP | 2 | 7,755 | 814 | 203 | -3% |
| Real-time | 2 | 6,790 | 1,736 | 269 | -9% |
| Data Pipeline | 1 | 683 | 260 | 89 | -20% |
| Observability | 1 | 3,670 | 768 | 196 | -25% |
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