Cost Estimation Sandbox

Format: Given an application scenario, estimate the operational costs.

Scenario 1: AI Customer Service Bot

- 1,000 customer conversations per day, average 8 rounds each
- About 500 input tokens + 300 output tokens per round
- Using Claude Sonnet
Estimate: Daily token consumption? Monthly cost? What if it grows 10x?

Scenario 2: Image Sharing Community

- 10,000 MAU, each uploading 20 images per month (3MB/image)
- 3 sizes generated per image
Estimate: Monthly storage growth? Bandwidth consumption? Storage cost after 1 year?

Scenario 3: Real-Time Collaborative Documents

- 500 teams, 10 people per team, 4 hours per person per day
- WebSocket persistent connections, 2 syncs per second
Estimate: Concurrent connections? Monthly traffic? Database QPS?