LLM Token Counter & Optimizer

Calculate tokens for Claude Opus 4.5, GPT-5.2, Gemini 3, and 9+ LLMs. Optimize your prompts to reduce API costs, fit context windows, and streamline AI workflows.

1. Enter Your Text: Paste your prompt, document, or code into the text area. You can also click Upload to import .txt, .md, or .json files.

2. View Token Counts: Instantly see estimated token counts for 9 popular LLMs including Claude Opus 4.5, Claude Sonnet 4.5, Gemini 3 Flash, Gemini 3 Pro, GPT-5.2, GPT-4o, DeepSeek-V3.2, Llama 3.3, and Qwen3.

3. Check Context Fit: Monitor how much of your context window is used across different sizes (4k to 200k tokens).

4. Optimize (Optional): Expand the optimization panel to strip whitespace, comments, markdown, emojis, and more to reduce token count and save on API costs.

5. Export: Copy to clipboard or download as .txt or .md for use in your AI projects and workflows.

🔒 Privacy: All processing happens locally in your browser. Your text never leaves your device.

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📊 Analysis

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Context Window Usage