Zero Spreadsheet Math

Exact LLM Costs. Instant.

Stop guessing your API spend. Compare 100+ models and get real-world token burn projections before you deploy.

Your Prototype, Your Budget

Predict Your Token Burn

Email Your Results

Receive a detailed line-item cost breakdown and save your custom projections for later.

LLM Cost Estimator

Select your model, adjust context window, and define prompt/completion ratios. See real-time projections.

By the Numbers

Precision for Vibe Coders

100+

LLM Models

Zero

Spreadsheet Math

Daily

API Syncs

Core Functionality

Built for Builders

TokenBurn simplifies complex LLM pricing into actionable insights, helping you optimize your architecture and avoid unexpected bills.

Context Window Pricing

Dynamic Scaling

Batch Request Projections

Accurately project costs based on your specific input and output token lengths.

Simulate how costs change with varying prompt and completion token volumes.

Estimate total spend for multiple API calls and concurrent user loads.

Get Your Full Cost Breakdown

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