GPT-5.6 Settings Cheat-Sheet
Use the best model of the year without torching your usage limits
For: Anyone on a paid ChatGPT plan who keeps hitting usage limits.
GPT-5.6 is the strongest model OpenAI has shipped, and on the wrong settings it will chew through a week of usage in an afternoon. Most of that burn comes from three settings that look like upgrades and bill like luxuries.
This sheet is the fix, on one page:
- The four rules — which mode to default to, and the two toggles to leave alone.
- Which model, which job — Sol, Terra, and Luna each have a lane. The table shows you the lane.
- The three money-killers — the settings that multiply your cost with little to show for it, with the real numbers.
- The routing pattern — how to stretch the same quota 3–4× by letting the expensive model delegate to the cheap ones.
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