Support Us

ClaudeHow is free to use and always will be — every calculator, every reference table, every how-to guide. Keeping it accurate takes ongoing work that a one-time build doesn't cover: model generations retire, cache minimums shift, and pricing changes on Anthropic's schedule, not ours, so someone has to keep re-checking the facts module against the source and re-running the freshness gate every week.

If a tool here saved you time working out whether to switch models, whether caching was worth implementing, or what your actual monthly Claude spend would look like on a different plan, a small donation goes directly toward keeping that maintenance running rather than letting the site drift out of date the way most reference sites eventually do.

Donations are processed securely through Stripe; we never see or store your card details. There is no recurring charge unless you explicitly choose one — a one-time contribution is the default.

If a donation isn't the right fit right now, the most useful thing you can do costs nothing: tell us about a wrong figure, a model ID that's changed, or a workflow the guides don't cover yet. Corrections and gaps reported by readers are how this site's error-and-fix catalogue grows, and they're worth more to its accuracy than almost anything else.

You can also support the site by buying the Cost Optimisation Workbook — a paid product built directly from this site's own facts module, rather than a separate donation. Either way, nothing on this site sits behind a paywall: every calculator, every reference table and every how-to guide stays fully free and fully usable whether or not you ever send a dollar our way.