Wanwei He

Wanwei He

AI developer & long-term value investor
#92592933 followers0 following

About

Hey! šŸ‘‹ I'm Wanwei. I sit at the intersection of Software Engineering and Value Investing. My philosophy is simple: Technology should be innovative, but the business model must be sustainable. I build tools that help founders and developers bring transparency to their tech stack. Currently building AI API Cost Calculator to help you stop overpaying for LLMs. Let's chat about React, AI, or financial statements!

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Tastemaker
Tastemaker
Gone streaking
Gone streaking

Maker History

  • AI API Cost Calculator
    AI API Cost CalculatorStop overpaying. Calculate AI Unit Economics in 1-click.
    Dec 2025
    • šŸŽ‰
    Joined Product HuntDecember 9th, 2025

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Wanwei Heā€¢

2mo ago

AI API Cost Calculator - Stop overpaying. Calculate AI Unit Economics in 1-click.

Stop counting tokens. Translate Monthly Active Users (MAU) into accurate cost forecasts for OpenAI, Anthropic & Gemini. KEY FEATURES: šŸ“‰ UNIT ECONOMICS Real-time Cost Per User analysis & Daily Burn Rate. šŸ¤– 2025 MODELS Live data for GPT-5, Gemini 3 & Claude 4.5. āš” SMART PRESETS One-click setups for RAG & Agents. šŸ“Š VISUAL COMPARISON Find the highest ROI model instantly. Open Source & Free. Know your margins before you write a single line of code.
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