priced plainly.
Every tier runs the same system. No marketing list, no drip campaign, no dark patterns at cancellation. Subscriptions are monthly, managed through Stripe, cancelable any time.
free
$0
20 messages / day
The full thinking environment. Mode-adaptive posture, fallacy surfacing, conversation history.
scalar
$40/mo
200 messages / day
For daily use. Priority responses. $400 a year if you'd rather pay once — two months free.
vector
$149/mo
unlimited messages
For people who think for a living. Priority responses, opus synthesis (Q4 2026). $1,490 a year — two months free.
Start free, no card required. Two messages without an account, twenty a day with one. Upgrade when the free tier stops being enough.