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title: "Beyond RAG: How Test-Time Compute & Reasoning Models Rewrite AI Search — WebFlur"
meta_title: "Beyond RAG: How Test-Time Compute & Reasoning Models Rewrite AI Search — WebFlur"
meta_description: "How OpenAI o3 and DeepSeek-R1 use test-time compute and Monte Carlo Tree Search to rewrite AI search. Why classical RAG vector matching fails in 2026."
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author: "WebFlur"
writer_name: "Pankaj Raghav"
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writer_bio_line: "10+ years engineering SEO infrastructure for B2B. Specialises in Technical AI SEO, Generative Engine Optimization (GEO), and Agent-to-Agent (A2A) protocols."
date_published: "2026-11-12"
last_updated: "2026-11-12"
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# Beyond RAG: How Test-Time Compute & Reasoning Models Rewrite AI Search — WebFlur

Test-time compute search, as demonstrated in WebFlur research on OpenAI o3 and DeepSeek-R1, replaces classical vector-similarity RAG with Monte Carlo Tree Search (MCTS) verification loops that spend inference compute validating factual premises.