Paste any text and instantly see token counts and API costs for every major LLM — side by side, updating as you type.
| Model | Input /1M | Output /1M | Context |
|---|---|---|---|
| GPT-4o | $2.50 | $10.00 | 128K |
| GPT-4o mini | $0.15 | $0.60 | 128K |
| Claude 3.5 Sonnet | $3.00 | $15.00 | 200K |
| Claude 3.5 Haiku | $0.80 | $4.00 | 200K |
| Claude 3 Opus | $15.00 | $75.00 | 200K |
| Gemini 1.5 Pro | $1.25 | $5.00 | 1M |
| Gemini 1.5 Flash | $0.075 | $0.30 | 1M |
| Llama 3.1 70B (Groq) | $0.59 | $0.79 | 131K |
No — this uses the ~4 chars/token heuristic. For exact counts, use tiktoken (OpenAI), the Anthropic tokenizer API, or the Google tokenizer client.
Input tokens are processed in parallel. Output tokens must be generated sequentially, one at a time, using more GPU compute. Most models price output at 3–5× the input rate.
No. All processing is in JavaScript in your browser. Your text never leaves your device.
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