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Public story · 2026-02-23 · source-backed
Replaces vector similarity search with hierarchical tree indexing + LLM reasoning. Hit 98.7% accuracy on FinanceBench — significantly outperforming traditional RAG. No chunking, no vector DB needed. Has an MCP server companion repo (pageindex-mcp) for plugging directly into coding agents. The strongest challenge yet to "everything needs a vector DB."
Clone it: github.com/VectifyAI/PageIndex | Python
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VectifyAI released PageIndex / Shared entities / Same source / Shared topic / What happened next
Linked by a graph relationship (VectifyAI released PageIndex); both cover FinanceBench, LLM, PageIndex, RAG; cite the same source (github.com/VectifyAI/PageIndex).
PageIndex partners with OpenAI Agents SDK / Shared entities / Same source / Shared topic / What happened next
Linked by a graph relationship (PageIndex partners with OpenAI Agents SDK); both cover LLM, PageIndex, RAG, VectifyAI; cite the same source (github.com/VectifyAI/PageIndex).
Simon Willison released LLM / Shared entities / Same source domain / What happened next / Tension
Linked by a graph relationship (Simon Willison released LLM); both cover LLM, MCP, RAG; reported by the same outlet (github.com).
Anthropic released MCP / Shared entities / Shared topic / What happened next / Tension
Linked by a graph relationship (Anthropic released MCP); both cover LLM, MCP, RAG; overlapping topics (agent, chunking).
Codex CLI uses MCP / Shared entities / Same source domain / Shared topic / What happened next / Tension
Linked by a graph relationship (Codex CLI uses MCP); both cover LLM, MCP; reported by the same outlet (github.com).
VectifyAI released PageIndex / Shared entities / Same source / What happened next / Tension
Linked by a graph relationship (VectifyAI released PageIndex); both cover PageIndex, VectifyAI; cite the same source (github.com/VectifyAI/PageIndex).
Claude Code uses MCP / Shared entities / Same source domain / What happened next
Linked by a graph relationship (Claude Code uses MCP); both cover LLM, MCP, RAG; reported by the same outlet (github.com).
Linked by a graph relationship (Claude Code uses MCP); both cover LLM, MCP, Python; reported by the same outlet (github.com).