CENTURION

Choose a thinking service manually

Pick one specific model so your Centurion always uses your preferred choice.

Updated July 13, 20261 min read

Steps

  1. Link your iPhone first — see Find and link your Centurion
  2. You → Choose Thinking Service
  3. Under Text models, tap one (e.g. Claude Sonnet 5, GPT-5.6 Terra)
  4. If it shows Needs key, add an API key on the brain — see Add API keys
  5. Active confirms your selection

Turn off Auto-select model if you want a fixed model.

Tip

If you're just starting out, Auto-select is fine. Switch to manual when you know which model you prefer.

Warning

Some thinking services are provided by outside companies. When your brain uses one, your question is sent to that company to be answered. See Where your data lives.

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