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TokenSave｜AI Token Count and API Pricing Calculator - Business Tools | Tsukutta

Top > Business Tools > TokenSave｜AI Token Count and API Pricing Calculator

TokenSave｜AI Token Count and API Pricing Calculator - Screenshot 1

TokenSave｜AI Token Count and API Pricing Calculator - Screenshot 1

TokenSave｜AI Token Count and API Pricing Calculator

Original name: TokenSave｜AIトークン数・API料金計算

Free token count and API pricing calculator in browser. Confirm with numbers that Japanese has approximately 1.8x higher "token tax" compared to English

Business Tools

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PublishedOct 2, 2026

UpdatedOct 14, 2026

Works onBrowser

CategoryBusiness Tools

Uses4

About this appAbout this app

Automatically translated from Japanese by AI

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1 published · 4 uses

A free web tool that lets you calculate the token count and API pricing for text you send to ChatGPT, Claude, Gemini, and more, right on the spot. Independently developed by an individual in South Korea.

No registration required · completely free
Text you input is not sent to servers; processing happens only in your browser
Supports UI in 41 languages including Japanese

Why I made it

Token count varies by language even for the same content. Using English as 1.00, with GPT's latest tokenizer (o200k), Japanese is approximately 1.79x. When using APIs with Japanese, the same task costs about 1.8x more than in English. I made this tool so you can see this difference numerically across different models.

Main features

"Save Tokens" button: Automatically translates Japanese prompts to English with one click to reduce tokens. You can save the full ~1.8x difference mentioned above. Translation happens on-device in Chrome/Edge (no server transmission), and pressing again reverts to the original text (Chrome 138+ / Edge 148+ on desktop)
Token count & API pricing calculation: Paste text and compare pricing across models at a glance. Token boundaries are color-coded for visibility
Subscription vs API comparison: Compare whether ChatGPT Plus/Pro, Claude Pro/Max, or paying the same usage via API is cheaper (/ja/plans)
Coding agent cost estimation: Estimate monthly API costs for Claude Code, Codex, Gemini CLI, etc. based on task count, scale, and cache usage, then compare against plans (/ja/agents)

Feel free to send feedback or requests like "please add this model too"!

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