AI Power User Calculators
Prompt scoring, token and cost estimates, context planning and a prompt library — get more out of any AI tool.
24 tools · Top 6 most used · 100% Free
This hub is for people who already use large language models daily and want tighter control over prompt quality, spend and output reliability rather than another chatbot. The hard part is not writing a prompt but knowing whether it will fit the context window, roughly what it will cost at scale, and whether the model is likely to hallucinate or leak private data — different tools answer each of those questions.
Writing and scoring prompts
Start with the Prompt Score Calculator to grade a draft, use the Version Compare when you are torn between two wordings, and keep winners in the Library Builder so you stop rewriting the same instructions.
Budgeting tokens, cost and context
Reach for the Token & Cost Estimator before running anything at volume, and the Context Window & Chunk Planner when a document is too long to fit in one pass and needs splitting.
Checking output quality and risk
Use the Hallucination Risk Checker and Answer Quality Checklist to sanity-check what came back, the Citation builder when claims must be sourced, and the Privacy Redaction Helper before pasting anything sensitive into a model.
Designing automations and agents
Sketch a multi-step pipeline in the Workflow Simulator, pressure-test it with the Risk Checker before it touches live data, and spec a repeatable agent or Claude Code task once the flow is settled.
Task-specific prompt builders
When the job is well-defined, jump straight to the matching builder — meeting summaries, email replies, data analysis, structured JSON output or SEO briefs — instead of writing the framing from scratch.
Common tasks
- Score and A/B two versions of a prompt
- Estimate token cost before a bulk run
- Split a long document to fit the context window
- Redact sensitive data before pasting into an AI
- Design and risk-check an automation workflow
- Generate a task-specific prompt from a template
Top 6 Calculators for AI power users
Prompt Score Calculator
Prompting
Use Calculator2AI Prompt Version Compare
Prompting
Use Calculator3AI Token & Cost Estimator
Tokens & cost
Use Calculator4AI Context Window & Chunk Planner
Tokens & cost
Use Calculator5AI Model Selector Helper
Learning & education
Use Calculator6AI Prompt Library Builder
Prompting
Use CalculatorMore Useful Calculators (18)
- AI Automation Workflow SimulatorAutomation
- AI Privacy Redaction HelperAI safety
- AI Workflow Risk CheckerAutomation
- AI Resume / CV Prompt BuilderBusiness & marketing
- AI Lesson Plan Prompt BuilderLearning & education
- AI Business Idea Prompt BuilderBusiness & marketing
- AI Citation Requirements Prompt BuilderAI safety
- AI Agent Spec BuilderClaude Code & dev
- AI Email Reply Prompt BuilderBusiness & marketing
- AI Meeting Summary Prompt BuilderBusiness & marketing
- AI Data Analysis Prompt BuilderClaude Code & dev
- AI Structured Output / JSON Prompt BuilderClaude Code & dev
- AI Image Prompt CritiqueImage prompts
- AI Hallucination Risk CheckerAI safety
- AI Answer Quality ChecklistAI safety
- Claude Code Prompt BuilderClaude Code & dev
- AI Image Prompt BuilderImage prompts
- AI SEO Content Brief GeneratorBusiness & marketing
