AnalysisAI ModelsSeptember 5, 2026

GPT-6 Astra Pro vs GPT-5.6 Sol Pro compared on MineBench.ai

Reddit comparison of 15 builds on MineBench.ai: GPT-6 Astra Pro averaged 40m 12s inference and cost $34.71 total, versus 18m 04s and $710.82 for GPT-5.6 Sol. Every Astra build was valid on its first attempt with zero retries in the harness.

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