AI Budget Burn Predictor
Predict when your API budget runs out — month by month
📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
AI budget burn predictor
Forecast your AI API spend. See when compound growth hits your budget wall.
How to use this tool
- 1
Enter current monthly AI spend
What you paid last month across all LLM APIs.
- 2
Estimate growth rate
Month-over-month % — startups often see 20-40%.
- 3
Set budget ceiling
When you want to be warned.
- 4
See projection
Month-by-month spend + when you hit the wall.
Frequently Asked Questions
Typical growth rates by company stage?
Early startup (pre-PMF): 30-50% MoM compound. Growth-stage: 15-25%. Mature SaaS: 5-10%. AI-first products: often 40%+ in first 6 months.
What drives AI spend growth?
User count × average tokens/user × model mix. All three grow simultaneously in early stages. Context window expansion (4K → 200K) alone can 10x a request's cost.
How to slow the burn?
Cache system prompts (Anthropic: 90% off reads). Batch API (50% off, 24h delay). Route simple queries to Haiku/GPT-4o-mini (20-40x cheaper). RAG instead of long context. Quantized local models for easy tasks.
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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.