Microsoft's OEO Framework Empowers Frontier Models to Self-Evolve Skills

TheTuringPost · x · 2026-08-13

A recent paper from Microsoft Research introduces Open-Ended Optimization (OEO). Moving away from traditional prescribed optimization pipelines, OEO allows frontier models like GPT-5.5 to act as optimizers, autonomously deciding how to gather evidence, rewrite persistent skills, and select candidates online.

Experiments show that across 14 head-to-head comparisons over 8 benchmarks, GPT-5.5-driven OEO achieved 12 wins, 1 tie, and 1 narrow loss, while using only a median of 34.3% of the token budget required by staged pipelines. However, the research highlights a capability boundary for this delegation: prescribed pipelines still outperform OEO when using a medium-capability optimizer. This suggests that prescribed workflows act as scaffolding to compensate for model limitations.

Related event: New Papers Explore the Boundaries of AI Self-Evolution(3 posts)→

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