About LLMomics

An independent reference for Claude API prices, run by hand, checked against Anthropic's own pages.

What this site is

One page that shows what Claude costs, and one page that turns a token count into dollars. Two models are on sale today — Claude Sonnet 5.5 and Claude Opus 5.5 — and those are the two we cover. The wider picture, model specs and how the two compare, is on the home page.

Why only Claude

The large AI price tables cover everything and refresh on their own schedule. We'd rather stay small and current. On this site, if a price is shown, you can click the number and land on the page it was read from. That promise is the product: add a second vendor and the checking doubles, and the checking is the whole thing.

How the numbers are checked

By hand, from Anthropic's own model announcement pages. Each priced row carries the date it was last checked, and the whole table gets a full audit once a month. Where a figure can't be sourced — Haiku 5.5, for now — the cell stays empty rather than carrying a guess.

How it's paid for

Right now, it isn't. There are no ads on this site, no affiliate links, and no payment behind any number shown. If that ever changes, any commercial link will be labelled as one and this page will say so.

Corrections

Found a number that's wrong, or a source that doesn't say what we claim it says? That's the most useful message you can send. Write to support@llmomics.com and it goes to the top of the pile.