OpenAI Launches GPT-5.6: Luna Costs 80% Less, Terra 20% Less

kiki-le-koala · reddit · 2026-07-31

OpenAI has officially announced the GPT-5.6 series to advance the price-performance frontier. The GPT-5.6 Luna model comes with an 80% cost reduction, while the GPT-5.6 Terra model is 20% cheaper.

Related event: OpenAI Slashes GPT-5.6 Prices, Luna Down 80%(27 posts)→

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