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GBrain: Garry Tan's Open-Source AI Agent Brain With Self-Wiring Knowledge Graph

GBrain is an open-source AI agent memory system built by Garry Tan, President and CEO of Y Combinator, to power his personal agents in production. It features a self-wiring typed knowledge graph, hybrid vector + graph search with P@5 of 49.1%, and a fully autonomous doctor command that optimizes brain health without human intervention.

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mxbai-rerank-v3-listwise: Mixedbread's New Reranker That Goes Beyond Binary Relevance

Mixedbread's mxbai-rerank-v3-listwise reads the whole candidate set at once to resolve conflicts and rank by directives like recency and source priority — delivering +11% NDCG@10 over previous methods.

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