GPT-5.6 Sol Achieves SOTA on ARC-AGI-3 with Context Compaction Tweaks

soumitrashukla9 · x · 2026-07-30

An OpenAI researcher shared recent test results regarding the GPT-5.6 Sol model. By enabling the model to reason and work across multiple context windows using their canonical compaction implementation, the model achieved State-of-the-Art (SOTA) performance on the ARC-AGI-3 benchmark.

Related event: GPT-5.6 Scores Triple on ARC-AGI-3 After Enabling Two API Settings(18 posts)→

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