I Compared the Real Cost of Claude Code, OpenRouter, and Image APIs

Short summary

Real API costs exceed published pricing due to production realities: retries, caching, failed jobs, and planning buffers can add 15-40% to baseline estimates. This guide provides detailed formulas and methodology for calculating true total-cost-of-ownership across LLM applications, coding-agent tasks, and image generation, with worked examples and an editable calculator.

• •Production API costs include retries, caching, failed jobs, and planning buffers—often 15-40% above listed unit rates
• •Coding-agent tasks cost vastly more than single chat messages due to context window, tool definitions, and conversation history
• •Image generation effective cost doubles when accounting for acceptance rate: 2.4 attempts per accepted image changes per-image pricing

Generated with AI, which can make mistakes.