GPT-5.6 Models Offer Better Efficiency and Power
TheZachMueller · x · 2026-07-11
Citing an Artificial Analysis chart, GPT-5.6's Sol and Luna outperform Terra in "intelligence vs. cost per task."
Luna is highlighted as being particularly cost-efficient. Across different reasoning efforts, both models consistently sit in a better position beyond the Pareto frontier. This means that for any effort level of Terra, you can find a Luna/Sol setting that is either smarter at the same cost, or equally smart but cheaper.
Related event: GPT-5.6 Value Showdown: Luna and Sol Beat Terra(9 posts)→
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