Token Counter Extension

A VSCode extension that displays token counts for your files with cost estimates across popular LLM models.

Features

• Real-time token counting - Updates as you type
• Cost analysis - Shows input/output costs for:
  • Claude 4 Opus
  • Claude 4 Sonnet
  • Gemini 2.5 Flash
  • OpenAI o3
• Clean UI - Minimal sidebar panel with costs
• Status bar integration - Always visible token count

Usage

1. Install the extension
2. Open any text file
3. Token count appears in the status bar (bottom right)
4. Click the token count to open cost analysis panel

Configuration

• tokenCounter.showInStatusBar: Toggle status bar visibility (default: true)

Development

# Install dependencies
npm install

# Compile TypeScript
npm run compile

# Open in VSCode (press F5)
code .

Requirements

• VSCode 1.74.0 or higher
• Uses GPT tokenization for all models (approximation)