https://odysseus-lxcq.onrender.com/static/js/model/matchKey.js

1// static/js/model/matchKey.js
2//
3// Pure helper for matching a model name against a set of known keys. No DOM —
4// safe to import anywhere and to unit-test under node.
5
6// Return the most specific (longest) key that is a substring of `name`, or null.
7// Returning the first match instead made "gpt-4o-mini" match the shorter
8// "gpt-4o" key — billing it at gpt-4o rates (~16x) and showing the wrong
9// context window.
10export function matchModelKey(name, keys) {
11  const n = (name || '').toLowerCase();
12  let best = null;
13  for (const key of keys) {
14    if (n.includes(key) && (best === null || key.length > best.length)) {
15      best = key;
16    }
17  }
18  return best;
19}