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Benchmark: Replacing Vector RAG with Context Trees to Fix Gemini Hallucinations

https://www.byterover.dev/blog/why-vector-rag-fails-for-code-we-tested-it-on-1-300-files
2•lanchiii•16h ago

Comments

lanchiii•16h ago
I've been benchmarking Byterover CLI's Context Tree against standard Vector RAG, specifically using Gemini Flash on a ~1,300 file codebase.

The consensus is usually that Gemini is chaotic or lazy compared to Claude. My theory was that "context stuffing" was the main cause, causing context dilution.

Byterover moves the retrieval logic client-side: it builds a dependency tree locally (AST-based) and prunes irrelevant files before sending the prompt. This contrasts with Vector RAG, which often retrieves the wrong Auth implementation files in my tests.

The Result: With the Context Tree cleaning the window, Gemini Flash stopped hallucinating imports and outperformed Claude 3.5 Sonnet on the "Refactor Auth Controller" task.

The post includes the full benchmarks and reproduction steps.

Dating in the Age of the Algorithm

https://jacobin.com/2025/12/dating-apps-men-women-capital/
1•PaulHoule•43s ago•0 comments

Thariq Comments on Anthropic/Claude Code Prohibited OAuth

https://twitter.com/trq212/status/2009689809875591565
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How we made Python's packaging library 3x faster

https://iscinumpy.dev/post/packaging-faster/
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Hacker News User Data Exporter

https://github.com/poisonborz/hackernews-userdata-exporter
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https://www.youtube.com/watch?v=MzKEsZLCwlk
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Impacts [pdf]

https://impacts.to/downloads/lowres/impacts.pdf
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https://www.kjmagnetics.com/blog/testing-magnet-strength
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https://github.com/laphilosophia/atrion
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https://artificesecurity.com/how-i-got-in-bypassing-bank-security-part-1/
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JavaScript Demos in 140 Characters

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Hot Take: You are all to blame for Tailwind

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https://finance.yahoo.com/news/musk-xai-burns-almost-8-001211671.html
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Former Biden Disinformation Czar Backs Foreign Penalties Against US Platforms

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Apple-1 Computer Prototype Board #0 – The

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Exercise can be nearly as effective as therapy for depression

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3•mustaphah•25m ago•0 comments