AI Prompt Token Counter by Rico Daniel Catacutan

AI Token Counter & Cost Calculator lets you check estimated token usage and input costs across all major AI models in real-time. Paste your prompt, pick your model, and see exactly how many tokens you're using.

Supported Models:
- GPT-5.4 (OpenAI) — $2.50 / 1M tokens
- Claude Sonnet 4.6 (Anthropic) — $3.00 / 1M tokens
- Gemini 3.1 Pro Preview (Google) — $1.25 / 1M tokens
- DeepSeek V3.2 (DeepSeek) — $0.28 / 1M tokens

Features:
- Real-time token count as you type
- Estimated input cost per model
- Character count
- Lightweight popup — no account required