A credit is the unit your usage is billed in, and you are charged per action, not per word.
That is the whole model, and it is chosen so your bill does not move when we change a model behind the scenes. A faster or cheaper model shifts our margin, never your price.
Each kind of action has its own fixed price in credits, and those prices differ a lot between them. They are not one credit each.
What costs credits
These are the prices in effect today. They are set per workspace and can change; your invoice always carries the ones you were actually charged.
| action | credits | what it is |
|---|---|---|
| Chat turn | 120 | one answer from Nisa in Slack or chat |
| Voice message | 150 | one spoken message she listened to and transcribed — see Voice messages |
| Skill run | 36 | one scheduled or manual run of a Skill |
| Heavy run | 36 | a run that needed a sandbox — building something, rendering, publishing |
| Web search | not charged yet | one search against the live web |
| Building a Skill | not charged yet | one Skill created from a description |
| Contact lookup | not charged yet | one enriched contact from a people database |
| Contact search | not charged yet | one search of a people database, before any contact is opened |
| Outbound email | not charged yet | one email sent to somebody outside your workspace |
| Outbound campaign | not charged yet | one outreach campaign started |
A spoken message costs both lines. The 150 pays for listening; the answer she gives you is a chat turn on top, so a voice message you get a reply to is 270, against 120 for typing the same thing. That is not a surcharge for speaking — transcription is a second model call, and it is billed as its own action so you can see it rather than find it buried in a bigger number.
Why a chat turn costs more than a Skill run, and the reason is worth knowing: when you talk to Nisa she reads your company Brain to answer you. A Skill already knows what it is looking at.
The rows marked "not charged yet" are exactly that — the meter runs and records them, the price is simply not set. When one is switched on it appears here first.
What does not cost anything
Reading your own Brain in the web app. Opening a report she already produced. Correcting a fact. Rejecting a card.
How long credits last
Two rules, and the difference between them is who paid for what.
Credits included in your plan arrive each billing period and are good for two months from the day they arrive. Unused ones roll over — there is no cap on how many, only on how long. A quiet month therefore carries into the next one instead of vanishing, and at a steady pace you will never be holding more than two periods' worth anyway.
Credits you buy on top of your plan do not expire. That is money you already paid, and we do not take it back. It also survives cancelling: if you stop your plan, the plan's credits go with the plan, and anything you bought separately stays where it is.
We always spend whichever credits expire soonest. So your plan's allotment is used before anything you bought, and a lapsing month can never burn through credits you paid extra for.
Where you can see what is left
In the app, bottom left. The sidebar carries your balance under your profile, and under it the line that actually answers the question: roughly how many more questions it buys, or — on the free plan — how many of today's actions you have left. It refreshes on its own.
By asking. "How many credits do I have left?" is a question Nisa answers from the ledger, not from memory. She can also tell you what is about to expire and what you have been spending it on.
If we cannot read it, we say so. A balance we could not load shows as nothing at all, never as a zero — a zero would read as "top up now", and we are not going to tell you that because our database hiccuped.
On the free plan, the day is the limit
The free plan is bounded by a daily allowance, not by your balance. You get a set number of actions each day, and it refills every day — so running out is never permanent, and you are never asked to pay to get today's work finished tomorrow. Nisa tells you what is left when it matters, and you can always ask her.
Your credits still tick down and the counter still shows them; they are simply not what stops you. The balance becomes the limit when you are on a paid plan.
When you run out
Nothing is charged for an action that did not happen. A Skill that failed to start because a connection was missing costs nothing, and a card you rejected costs nothing. That is not a rare case either: about one run in seven ends in a failure, and not one of them is on your invoice.
If your balance reaches zero, scheduled Skills stop and Nisa tells you — she does not silently skip a morning and let you assume it ran.