Free AI tools
Small, sharp calculators for AI-native teams. Size the number before you build.
AI Cost Diagnostic
Estimate your monthly LLM bill from your workload, then see which of the five cost levers saves the most, applied in order.
Open toolAI Agent Cost Estimator
What one agent run costs, how many single API calls that equals, and which step the tokens disappear into.
Open toolRAG Cost Calculator
Retrieval cost per query and per month, split across embedding, vector storage and generation, versus long context.
Open toolSelf-Host Break-even
The monthly volume where running your own model beats an API, with utilisation, redundancy and engineering time included.
Open toolSmall Model Break-even
The success rate a cheap model needs before routing beats a frontier model on cost per completed task.
Open toolLLM Pricing Comparison
Anthropic, OpenAI, Google and DeepSeek ranked by effective monthly cost at your input/output mix and cache hit rate, not sticker price.
Open toolAI Unit Economics
Cost per completed task, margin per task and AI cost per customer, with retries and human review priced in.
Open toolPrompt Caching Calculator
See how much prompt caching saves per month and the break-even point, across Anthropic, OpenAI, Gemini and DeepSeek.
Open toolToken Counter
Paste any text, see the token count, then what it actually costs per model at your volume. Runs entirely in your browser.
Open tool