ChatGPT Model Guide
Use the most intelligence your usage limit allows.
In Work, open Power → Advanced below the message box.
The tradeoff: intelligence vs. usage
Your plan includes usage. Stronger settings use it faster, with no extra charge while you stay within that allowance.
Prioritize intelligence. Scale back only when you’re likely to run out.
Two ways to go bigger
GPT-6 Astra
For demanding research, larger searches, and stronger judgment across many sources.
Ultra
Uses AI agents in parallel. Can deliver better answers faster, but uses more of your allowance.
When to go smaller
If your remaining usage needs to last until the reset:
GPT-6 Luna · High
Small, simple tasks. Rewrite a short email, format notes, or extract a few facts.
GPT-6.1 Sol · High
Bigger work. Longer documents, several sources, or tasks with multiple steps.
Return to Sol · Max when usage is comfortable again.
Out of usage? Use a reset if available · Switch to Chat · Buy credits · Wait
See the Advanced Guide for steps →