Get the GPT-5.6 Sol Decoder

The companion to the video on GPT-5.6 — the model OpenAI previewed under U.S. government restrictions, gated customer-by-customer to ~20 approved companies over its cyber capabilities. Inside: the 3-tier decision map (Sol the flagship, Terra the everyday workhorse at ~half the cost of GPT-5.5, Luna the cheap-at-scale tier) with exactly when to use each; a guide to the two new reasoning modes (max for deep single-thread thinking, ultra for parallel subagents — the mode that hit 91.91% on Terminal-Bench); a pricing cheat-sheet (Sol $5/$30, Terra $2.50/$15, Luna $1/$6 per 1M tokens) plus the two cost rules that pay for themselves (Sol output costs 5x Luna; cached reads are 90% off); the gov-gate context and the Cyber Critical threshold it was held below; and a launch-day readiness checklist so you move the moment it goes public. Every number is from OpenAI's own announcement and system card.

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