AI Token Cost Calculator – Compare LLM API Pricing & Token Budgets
Estimate prompt and completion token costs across 50+ LLMs including GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, and DeepSeek. 100% free and client-side.
100% Client-Side Privacy: All calculations, text transformations, and file operations run locally in your browser. No files or personal inputs are uploaded to external servers.
Tool controls
Drop file to count tokens (
.txt, .md, .py, .js, .json, .csv) Estimated Tokens
118
Words
81
Characters
497
Lines
10
+0 tokens
500 tokens
50 (One liner) 500 (Summary) 2,000 (Article) 8k (Long Code)
Models supporting KV prompt caching (Claude 3.5, GPT-4o, DeepSeek) apply massive discounts when prompts exceed cache thresholds (typically 1,024+ tokens).
1 Request
Total Input Tokens
118
Prompt + System Overhead
Expected Output
500
Estimated completion length
Cheapest Provider
$0.00016
Gemini 1.5 Flash
Flagship Benchmark (GPT-4o)
$0.00530
Input: $2.50/M | Out: $10/M
Multi-Model Real-Time API Cost Matrix
Live Pricing SyncedPricing per million tokens based on current live rates. Ranked from lowest to highest total query cost.
| Model & Provider | Input Rate / 1M | Output Rate / 1M | Input Cost | Output Cost | Total Cost |
|---|
* Rates verified against OpenAI, Anthropic, Google Cloud, and DeepSeek official API documentation. 1 Token ≈ 4 characters / 0.75 English words
Informational & Educational Disclaimer
This tool is designed for informational and educational estimation purposes only. Calculations are based on user-provided inputs and standard mathematical formulas. For official tax, legal, or financial decisions, please consult certified professionals or official government publications.