Originally published on AI Tech Connect.
What changed Luna fell 80%. From $1 / $6 to $0.20 / $1.20 per million input and output tokens. In both directions, a fifth of what it cost the day before. Terra fell 20%. From $2.50 / $15 to $2 / $12 per million tokens. A real reduction, but a modest one next to Luna's. Sol did not move. The flagship stays at $5 / $30 per million tokens. No cut, no restructuring, no introductory window. The timing is unusually tight. The GPT-5.6 family reached general availability on 9 July 2026. The cut landed roughly three weeks later, on a lineup that had barely settled into production stacks. The stated reason is efficiency. OpenAI attributed the reductions to improvements in its models, inference infrastructure, production software and context-management systems — a supply-side explanation for a…
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