积分定价Credits and pricing

统一积分，所有产品通用，永久有效。没有订阅，没有月费。文献侦探每条参考文献 1 积分；未登录每天可试用 5 条。One AILatest balance for every product. Credits never expire. There is no subscription and no monthly fee. RefCheck costs 1 credit per reference. Signed out, you can try 5 a day.

积分包Credit packs

价格为美元。支付由 Creem 完成（支付宝、Apple Pay、Google Pay 或银行卡，以结账页为准）。支付成功后积分立即进入同一个 AILatest 余额。Prices in USD. Creem handles checkout (Alipay, Apple Pay, Google Pay, or cards, as shown there). Credits land in the same AILatest balance right after payment.

$1.99

200 积分200 credits

$4.99

最热门Popular 600 积分600 credits

$9.99

最划算Best value 1,500 积分1,500 credits

文献侦探怎么扣积分What RefCheck spends

未登录：每天 5 条免费试用（北京时间零点重置）。Signed out: 5 references a day (resets at midnight Beijing time).
登录后：每条参考文献 1 积分，一次粘贴多条会按条扣除。Signed in: 1 credit per reference. A batch deducts one credit for each reference checked.
核查失败的条目自动退回积分。Failed checks are refunded.
新注册送 100 积分。余额与 Journal、Grant 等产品共用。New accounts get 100 credits. The balance is shared with Journal, Grant, and the other AILatest products.