Frontier models' 'idea basins' compared: GPT-5.6 Sol explores widest, Qwen3.8 Max gets stuck most

teortaxesTex · x · 2026-11-13

Researchers including AlexGDimakis describe "idea basins": autonomous agents get trapped in previously tried methods, with Fork-and-Flush and "Scaling Discovery requires forgetting" reducing fixation by periodically deleting session context.

Benchmark charts compare frontier models: GPT-5.6 Sol visits the most basins per run (2.00) and has only 34% of runs never leaving their first basin — tied lowest with Gemini 3.8 Flash. Qwen3.8 Max is most prone to fixation at 62%. DimitrisPapail argues this makes Sol 5.6 the most creative R&D model OpenAI has released, exploring more idea basins and rarely getting stuck.

Related event: Multiple Labs Find 'Idea Basins' Trap AI Agents in Old Approaches(3 posts)→

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