Billing

One flat monthly subscription per tier. No per-credit charges, no top-up lines, no surprises indexed to estimate size. Pricing is deliberately thin: a small line item next to your AI bill, with at least half of subscription revenue to date spent on the certificates themselves.

Checkout is not yet open; these are the planned launch tiers and they may change before launch.

Tiers

Billable tokens

Tier caps count billable tokens, not raw tokens:

billable = fresh input + output + 10% x cached input

Cache reads cost providers about a tenth of the compute, and counting them like fresh tokens would overcharge exactly the teams that engineered their usage well. The 10 percent rate is a fixed billing rule, deliberately separate from the estimation methodology: revising a methodology coefficient can change an estimate, never your bill.

Cache-heavy example: 4,000M tokens tracked, 93 percent cache reads. Billable = 280M fresh and output + 372M (10 percent of 3,720M cached) = 652M, which fits the Business tier despite four billion raw tokens.

Reasoning-heavy example: 60M input + 30M output (of which 25M are reasoning tokens), no caching. Billable = 90M, which fits the Team tier. Reasoning tokens are a reported subset of output tokens, so they are already inside the output count and are never added again; they matter to the footprint estimate, not to the bill.

Why tokens, never footprint

Your bill depends only on token counts you can audit from your provider's own reporting. No coefficient in the methodology can influence revenue, so the estimates stay honest and so does the price.

The certificate-share floor

At least 50 percent of your subscription revenue to date must have been spent acquiring environmental certificates: retired for your benefit, or purchased into retirement buffer inventory when your usage needed less than the floor. The share is measured cumulatively on a cash basis at actual supplier cost (never a price table), and any shortfall is trued up with an additional purchase at each monthly close, rounding up to whole units so the floor is met rather than approached. The cumulative achieved share is recorded at every close and printed on your certificate. It is a spending commitment on the subscription price, not a representation about footprint coverage, which is governed by the estimate basis stated on the certificate.

At the cap

Estimation continues past the cap; nothing is gated or interrupted. Retirements accrue up to the cap, and sustained billable usage above it moves you to the next tier at the following billing period, with notice. The certificate always states the token volume the period's retirements were accrued against.

Managing the subscription

The Manage billing button in the console opens the Stripe customer portal: card changes, invoice history, and cancellation. If service lapses, your AI tools are unaffected (the platform never touches your traffic); the ledger simply stops accruing retirements, and your history and certificates remain accessible.

Annual billing

Annual billing with two months free is available on Team and Business; write to info@tahosasystems.com.