LLM Cost Comparison Calculator

Compare the cost of different models

Language models are priced per token, and costs vary widely between models and providers. This calculator compares total cost across models by your input and output token counts and each model’s per-million-token prices, so you can choose on cost with real numbers.

Why token pricing needs comparing

Models charge separately for input tokens (your prompt) and output tokens (the response), often at different rates, and prices between models can differ by an order of magnitude. So the cheapest model for a task depends on the ratio of input to output and the volume, not just a headline price. A task with long prompts and short answers costs differently from one with short prompts and long answers. Comparing the total cost across models for your actual token usage is the only way to choose sensibly, and at scale the difference between models can be very large.

Choose on real cost

The tool runs entirely in your browser, so nothing you paste, prompts, outputs or documents, is uploaded, which matters when the input is sensitive AI data or your own content.

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