
Muon
SaaS Financial model sandbox for AI Startup/Projects
1 follower
SaaS Financial model sandbox for AI Startup/Projects
1 follower
Free & no login: Comprehensive SaaS financial modeling from LLM API costs to pricing strategies, profit forecasts, and cash flow analysis for AI startups. Perfect for indie developers & CTOs who want to track runway without fighting Excel.








Hi Product Hunt!
I built Muon because we were tired of maintaining Excel sheets just to answer: "If we charge $20/month and allow 500 GPT-5 calls, are we actually profitable?"
Muon is a free, no login financial sandbox designed to simplify this.
It’s not a heavy ERP system. It’s a lightweight simulator that lets you:
💸 Calculate AI Costs: Pick a model (e.g., Claude 4.5 Opus, Gemini 3 Pro), estimate your traffic, and see your monthly bill.
🔮 Simulate Events: What happens to cash flow if you spend $5k on ads next month? Or if you hire two engineers in Q3? Just drop these "discrete events" into the sandbox.
⏳ Watch Your Runway: We calculate your real-time burn rate and show you a "Death Countdown" (in months) based on your current cash.
Why use Muon?
Privacy First: Everything runs locally in your browser. No data is uploaded. Your financial secrets stay yours.
Developer Friendly: Export/Import via JSON to share scenarios with your team.
Free: No login required. Just open and use.
Whether you are an indie hacker, a CTO preparing for a fundraise, or just need a quick LLM cost calculator, we hope Muon saves you some time.