Dev Shares How He Caps AI Product Daily Cost at $500 with Multi-Layer Abuse Prevention

tdhopper · x · 2026-07-30

Developer @nicoleclash shares the cost and security strategy for his AI tool: using Gemini 3.5 Flash Lite at $0.3/M input and $2.5/M output, each request costs 0.2-0.5 cents, $200-$500 per 100k requests. He implements multi-layer rate limits: 100/IP/hour at Vercel, 500/min globally at Google, 100k/day hard stop, plus cloud monitoring. Max daily cost is $500 even under attack. He believes social exposure and tips can offset costs.

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