Free AI tools
Practical calculators and inspectors for people building with AI. They run in your browser.
- Token InspectorCount tokens, compare models, estimate cost and export API payloads. New.
- LLM cost calculatorEstimate monthly API spend from request volume and prompt size.
- Business case builderTurn an AI idea into a costed, defensible business case.
- Model finderShortlist models by task, budget and constraints.
- Local AI plannerCheck what models your own hardware can run.
- API vs localCompare paying per token with running models yourself.
- AI ROI calculatorEstimate the return on an AI project from time and cost saved.
- Build my AI stackGet a starter stack of models and tools for your use case.
- Find the right AIMatch a task to the type of AI tool that suits it.