Baidu Translate Open Platform general text translation API monthly free characters (unverified 50000 / individual 1000000 / enterprise 2000000)

Monthly free characters for the general text translation API: 50000 for unverified accounts (Standard), 1000000 for individual verification (Advanced) and 2000000 for enterprise verification (Premium); beyond that it is billed at 49 yuan per million characters

The official "General text translation pricing" page shows the fee table: unverified (Standard) gets 50000 free characters/month, 1 QPS, 1000 characters per request and 28 common languages; individual verification (Advanced) gets 1000000 characters/month, 10 QPS, 6000 characters per request, 28 common languages and terminology glossary support; enterprise verification (Premium) gets 2000000 characters/month, 100 QPS, 6000 characters per request, 200+ languages and glossary support. Beyond the free characters it is 49 yuan per million characters. Characters are counted on the source text, and every Chinese character, letter, space, punctuation mark and html tag counts as 1; failed calls are not charged.

⚠️The unverified tier only needs registration and activation (50000 characters/month); for 1000000 characters per month, complete individual verification and switch to Advanced under Console > Overview > My services, effective immediately. The official page does not explicitly say the free characters reset on the natural month (the wording is "per month"). Baidu warns that a balance of 0 does not stop service immediately: usage updates every 5 minutes and is settled the next day, so overage will be charged; enable the balance alert. Classic machine translation, not an LLM.