{"type":"analysis","id":"analysis:research-bdh-cq-is-a-cheap-arc-in-context-latent-solver-not-a-proven-long-horizon-win","slug":"research-bdh-cq-is-a-cheap-arc-in-context-latent-solver-not-a-proven-long-horizon-win","title":"BDH-CQ is a cheap ARC in-context latent solver, not a proven long-horizon win","description":"Pathway's 150-million-parameter BDH-CQ reports 29.5% pass@2 on public ARC-AGI-1 by writing demonstrations into recurrent memory and iterating in a latent workspace instead of verbal chain-of-thought. Builders should treat the in-context latent design as real and the headline Pareto number as not audit-ready: matched recurrent baselines, official leaderboard listing, and internally consistent cost","published_at":"2026-10-26T02:00:00.000Z","updated_at":"2026-10-26T02:00:00.000Z","record_date":"2026-10-26","topics":["memory","architecture","design","research"],"source_urls":["https://arxiv.org/abs/2608.09888","https://pathway.com/research/introducing-bdh-cq","https://github.com/pathwaycom/arc-task-gen","https://arcprize.org/leaderboard","https://arcprize.org/leaderboard/community","https://arcprize.org/results/openai-gpt-5-6-luna","https://arcprize.org/results/openai-gpt-5-6-luna-2026-07-30","https://pathway.com/blog/pathway-150m-model-breaks-arc-agi-1-cost-efficiency-frontier","https://arcprize.org/blog/hrm-analysis","https://arxiv.org/abs/2510.04871","https://arxiv.org/abs/2412.06769","https://github.com/pathwaycom/bdh","https://pathway.com/research/beyond-transformers-sudoku-bench"],"language":"en","routes":{"html":"https://newruntime.com/analysis/research-bdh-cq-is-a-cheap-arc-in-context-latent-solver-not-a-proven-long-horizon-win/","markdown":"https://newruntime.com/analysis/research-bdh-cq-is-a-cheap-arc-in-context-latent-solver-not-a-proven-long-horizon-win.md","json":"https://newruntime.com/analysis/research-bdh-cq-is-a-cheap-arc-in-context-latent-solver-not-a-proven-long-horizon-win.json"},"author":{"role":"author","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"editorial_provenance":{"desk":"authorial","target_ref":"deep_research:3e2d5ac2-4d01-433b-8a0d-23e3afd3963d","authorial_article_id":"3e2d5ac2-4d01-433b-8a0d-23e3afd3963d"},"next_reads":[{"type":"topic","path":"/topics/memory/","url":"https://newruntime.com/topics/memory/","title":"Memory","reason":"Explore the memory topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/memory.md","json_url":"https://newruntime.com/topics/memory.json"},{"type":"topic","path":"/topics/architecture/","url":"https://newruntime.com/topics/architecture/","title":"Architecture","reason":"Explore the architecture topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/architecture.md","json_url":"https://newruntime.com/topics/architecture.json"},{"type":"topic","path":"/topics/design/","url":"https://newruntime.com/topics/design/","title":"Design","reason":"Explore the design topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/design.md","json_url":"https://newruntime.com/topics/design.json"},{"type":"collection","path":"/analysis/","url":"https://newruntime.com/analysis/","title":"Analysis","reason":"Open the latest authorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/analysis.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}