Show HN: CostPerPrompt – Live AI API pricing and real-workload cost calculators

CostPerPrompt is a tool that tracks live pricing for 232+ AI models and provides calculators to estimate real-world costs for different AI workloads like chatbots, agents, and RAG systems. The platform automatically updates pricing data and accounts for cost-saving mechanisms like prompt caching and batch processing, which most cost estimates overlook. Prices range from DeepSeek's $0.09/$0.18 per million tokens to premium models like GPT-5.6 at $5/$30 per million tokens.