How Vex usage is metered
On the free plan, each organization gets 100 free AI answers per month. Once those are used up, Vex keeps answering pay-as-you-go as long as you have credits in your wallet — and hands off to a human if you don't. Paid plans have no free monthly allotment: every AI answer is billed pay-as-you-go from the first answer, but at a lower per-answer rate than the free plan, so credits go further. AI answers cost roughly $0.002 each (about 2 credits), priced on the AI token consumption of the reply, so the exact cost varies by model and by how long the conversation context and Vex's reply are.
AI assist actions in the inbox (draft, summarize, rephrase) also draw from the same credit balance.
Credits are a prepaid balance held in your organization's Yaplet wallet. They are spent automatically as Vex generates replies, and they never expire. Credits are not applied to or deducted from a Stripe invoice — your prepaid wallet is the source of truth.
What does not use credits
- Chatbot workflow conversations — workflows are deterministic and don't call the LLM.
- Reading or searching your knowledge base — the knowledge source itself doesn't cost credits, only the AI reply generation does.
- Viewing reports, managing sources, or editing settings.
Voice vs. chat credits
Voice calls (AI phone) are billed separately at a per-minute rate, not per-reply — and as metered usage on your subscription invoice, not drawn from your prepaid credit balance (that balance is for AI chat answers). See the AI phone section for voice billing details.
Where to check usage
- Go to Automation → AI and open your Vex chatbot.
- The AI Conversation Reports tab shows conversation counts and AI response breakdowns for a date range you choose.
- For credit balance and purchase history, go to Settings → Billing and look for the Yaplet Credits section.
Topping up credits
When your prepaid balance runs low, Yaplet sends a low-balance email and shows an in-app alert so you can top up before credits run out. If credits do reach zero (and your free answers for the month are used up), Vex stops auto-replying and conversations fall back to live human agents — no data is lost, visitors just don't get an AI reply. The minimum top-up is $5 USD / 2,000 HUF and the maximum is $10,000 / 4,000,000 HUF. You can top up any time from the billing page. Topping up and balance management are owner-only.
Full details on buying credits and setting up auto top-up: Buy Yaplet credits for AI and voice usage.
Next step
Now that you understand usage, consider setting up the voice surface: Vex on voice — same brain, voice surface.