Terms of Use

Last reviewed 2026-08-08. By using ClaudeHow's tools, calculators and content, you agree to these terms.

What ClaudeHow provides

ClaudeHow publishes calculators, reference tables and how-to guides for building on Claude and Claude Code. The site is independent and is not affiliated with, endorsed by, or sponsored by Anthropic — see /about/ for the full statement.

Accuracy, and the limits of it

We work to keep every figure on this site current and correctly sourced, and we run an automated freshness check against every fact we publish. That said, Anthropic can change pricing, model availability, rate limits, and API behaviour at any time and without notice to us, and a change can occur between our last verification and your reading of a page. Nothing on this site is a substitute for checking Anthropic's own current documentation before you make a production decision that depends on price, availability or API behaviour. Where we could not confirm a figure, we say so on the page rather than guess — treat any unconfirmed figure as informational only.

The calculators

Every calculator on this site computes from the inputs you provide and from the facts module's published figures at the time of your visit. Results are estimates for planning purposes. Actual billed amounts depend on your account's specific configuration, any negotiated enterprise pricing, regional tax, and exact request-level behaviour that a general calculator cannot model perfectly. We do not guarantee that a calculator's output will match your invoice to the cent.

The usage tracker

The usage tracker tool stores data you enter only in your own browser's local storage. We do not receive, store, or have access to anything you log in it. You are responsible for your own data; clearing your browser storage or switching devices will lose it, and we cannot recover it for you.

The paid product

The Cost Optimisation Workbook is a digital PDF product, delivered on successful payment via Stripe. Because it is a digital product delivered immediately, sales are generally final; if something is wrong with your download or payment, contact us and we will make it right.

Acceptable use

Do not scrape this site's content for republication elsewhere without attribution, attempt to circumvent the paid product's delivery, or use the calculators' output to represent that Anthropic itself has endorsed a figure or comparison you publish elsewhere.

Changes to these terms

We may update these terms as the site or its tools change. The "last reviewed" date at the top reflects the most recent revision. Continued use of the site after a change constitutes acceptance of the updated terms.

Contact

Questions about these terms: see /contact/.