oppi.li
source dump of claude code
1import { isClaudeAISubscriber } from './auth.js'
2import { has1mContext } from './context.js'
3
4export function isBilledAsExtraUsage(
5 model: string | null,
6 isFastMode: boolean,
7 isOpus1mMerged: boolean,
8): boolean {
9 if (!isClaudeAISubscriber()) return false
10 if (isFastMode) return true
11 if (model === null || !has1mContext(model)) return false
12
13 const m = model
14 .toLowerCase()
15 .replace(/\[1m\]$/, '')
16 .trim()
17 const isOpus46 = m === 'opus' || m.includes('opus-4-6')
18 const isSonnet46 = m === 'sonnet' || m.includes('sonnet-4-6')
19
20 if (isOpus46 && isOpus1mMerged) return false
21
22 return isOpus46 || isSonnet46
23}