Captcha Solving Platform Cost Comparison: Beyond the 'Price per 1,000' Trap, a Total Cost of Ownership (TCO) Guide for Enterprise Procurement and Migr

When comparing captcha platform costs, many teams only focus on the published price per 1,000 calls, only to find their actual monthly bills far exceed the budget after going live. This article, from the perspective of enterprise procurement and technical architecture, goes beyond simple price comparisons and breaks down five hidden costs: idle monthly subscriptions, polling overhead, proxy and session misalignment, multi-platform order splitting, and code migration and refactoring. It also provides a practical dual-run stress testing and TCO calculation framework.