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 launches GPT-5.6 family: Luna price cut 80%, Sol gets Fast mode(67 posts)→
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