$ c token optimize --mode=aggressive

CuToken
Multi-Pass Token Optimizer

Cut 40–60% of prompt tokens — free to try, Pro when you want deeper AI savings.

3 PASSES
16 TEMPLATES
16 MODELS
0 TRACKING
TRY FREE DEMO GET PRO

TRUSTED BY DEVELOPERS AT

$ cutoken run --live

LIVE OPTIMIZER

Paste a prompt on the left — get a tighter, cheaper version on the right. Free, no login required.

Free live optimizer · no signup
READY
STDIN raw prompt
$
0 / 4000 chars
STDOUT optimized

AWAITING INPUT...

Enter a prompt and press OPTIMIZE

PRO

Get Pro for better optimization

Free is great to try. Pro unlocks deeper AI refinement, credit-based runs, and history — so you save more on every prompt you send to your models.

Get Pro version

Free

  • Live multi-pass optimizer
  • No account required
  • Great for quick tests

Pro

  • Stronger AI refinement
  • Credits & run history
  • Built for regular use

KEY CAPABILITIES

NORMALIZE PASS

Unicode normalization, smart quote conversion, em-dash handling, punctuation cleanup, whitespace normalization.

LEXICAL PASS

Stutter removal, filler/hedge/command stripping, greeting removal, phrase compression, synonym swap, number→digit conversion.

STRUCTURAL PASS

Semantic clause deduplication (Jaccard similarity), exact n-gram deduplication, newline collapse.

GRAMMAR GUARDS

Dangling preposition/conjunction detection, doubled determiner/preposition check, modal+to validation, balanced quotes/parens.

RISK-WEIGHTED CONFIDENCE

Confidence scored by pass risk (not change count): normalize=0.01, phrase=0.08, structural=0.15 per change.

16 MODELS SUPPORTED

GPT-4o, GPT-4 Turbo, Claude 3.5 Sonnet, Llama 3, Mistral Large, Gemini Pro, Grok-1, and more.

VIEW ALL FEATURES EXPLORE TERMINAL CLI →
$ pip install cutoken

CUTOKEN IN YOUR TERMINAL

Like Claude Code, but built to strip prompt bloat, save tokens, and sync to clipboard.

DEVELOPER TOOL

Fast. Scriptable. Zero context switching.

Optimize prompts directly from your shell. Pipe text files, paste multi-paragraph system instructions with smart paste buffering, or launch an interactive session.

⚡

Smart Multi-Paragraph Paste

Seamlessly paste 5+ paragraph prompts without early triggers or line breaks ruining your prompt.

📋

Auto-Sync Clipboard

Compressed output copies to your clipboard instantly — press Ctrl+V straight into ChatGPT or Cursor.

🔑

Unified Pro Credits

Runs on the same API key and shares credits seamlessly across CLI, Chrome Extension, and Web.

$ cutoken "Optimize this prompt..." 
✔ Optimized in 240ms
─────────────────────────────────────────────────────────────
 Original: 120 tok   Optimized: 54 tok   Saved: -66 (55.0%)
─────────────────────────────────────────────────────────────
📋 Copied to clipboard!

# Quick Install:
$ pip install cutoken
$ cutoken login

READY TO OPTIMIZE?

Drop in your prompt above or check out the full feature list to see what CuToken can do for your token budget.

TRY NOW SEE THE PROBLEM

Why use a token optimizer?

Large language models bill by tokens. Longer prompts cost more on every API call to ChatGPT, Claude, Gemini, and similar models. A token optimizer (also called a prompt optimizer) shortens your text while keeping the same meaning — so you pay less and fit more into the context window.

CuToken is a free online prompt compression tool with multi-pass cleanup: filler removal, phrase tightening, and optional AI refinement. Use it when you want to save API costs, reduce latency, or ship cleaner system prompts.

How to save tokens on LLM APIs

  1. Paste your raw prompt into the live optimizer above.
  2. Choose Safe, Balanced, or Aggressive mode.
  3. Copy the optimized output into your app or playground.
  4. For heavier daily use, upgrade to Pro for deeper AI optimization and credits.

Frequently asked questions

What is a token optimizer?

A token optimizer reduces the number of tokens in a prompt or system message without changing the intent, lowering cost and context usage for models like GPT-4o and Claude.

Is CuToken free?

Yes. The live prompt optimizer on the homepage is free and does not require an account. Pro adds deeper AI refinement, history, and character-based credits.

How can I reduce ChatGPT or Claude API costs?

Shorten prompts with a token optimizer, remove redundant instructions, cache stable system prompts, and only send the minimum context each request needs.