14 free tools · 19 models · 11 providers

Useful AI planning tools, not a collection of empty pages.

Count text privately, compare current model costs, forecast agent loops, check context fit, and translate token budgets into practical numbers.

Cost & capacity

Move from one prompt to a realistic production budget.

Tokens & prompts

Private browser tools for the text you are working on now.

Provider calculators

Dedicated pages for high-intent model and provider planning.

Need the raw numbers?

Audit every model and provider source.

The living registry keeps model IDs, context windows, standard pricing, cached-input references, verification dates, and provider links together.

Open model registry →