MineBench: GPT-6 Astra Pro costs 20x less than GPT-5.6 Sol, first zero-retry model
ENT_Alam · reddit · 2026-09-06
The MineBench author published a comparison of GPT-6 Astra Pro vs GPT-5.6 Sol on Minecraft builds: total cost $34.71 vs $710.82 for 15 builds, driven by Astra being the first model to produce valid builds with zero retries. Average inference time was 40m12s vs 18m04s. The author calls it the biggest generational jump yet, with near-Blender-quality builds and the most consistent text orientation, while disagreeing with Greg Brockman's AGI characterization. Full report on GitHub release 4.3.0 and minebench.ai.
Related event: MineBench: GPT-6 Astra Builds at 1/20 the Cost of Predecessor(2 posts)→
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