Structured AI with Neo4j

Neo4j 2026.02.0 introduces a new `ai.text.structuredCompletion` Cypher procedure that returns AI-generated output conforming to a user-defined JSON schema. The post demonstrates this with a practical dinner planner app: a structured recipe is generated via OpenAI using user preferences, allergies, and recent meals, then stored as a graph with ingredient nodes, vector embeddings, and relationships. The resulting graph enables weekly dinner planning, shopping list generation, and even vector-similarity-based user matching. The post also covers the new CYPHER 25 vector search syntax and notes limitations like unit normalization in shopping lists.