AI Data Tools
Free tools for people who care about the numbers behind AI.
Calculator
LLM Cost Calculator
Calculate API costs across models. Pick a model, enter your token counts, get the price. Covers OpenAI, Anthropic, Google, Meta, Mistral, and more.
Reference
Benchmark Decoder
Search any AI benchmark and get a plain-English explanation of what it measures, why it matters, and which models score highest.
Visual
Model Size Visualizer
See how 1B, 7B, 70B, and 405B parameter models compare visually. Proportional visualization that makes the scale differences click.