Tools Category
Free AI Tools — Calculators, Planners and Developer Utilities
20 free AI tools for developers, product managers and business leaders. Compare costs, count tokens, benchmark models and plan infrastructure.
AI API pricing changes rapidly and varies across providers. These calculators help you compare costs, estimate token usage and forecast spending before committing to any platform. Furthermore, all tools use June 2026 published rates from official documentation.
Nothing is sent to any server. All calculations happen locally in your browser. Moreover, no API keys are needed and no data is stored anywhere.
The collection covers four areas — cost calculators, planning and strategy, developer utilities, and content and education tools. Additionally, use the search box or dropdown to find any tool in seconds.
AI Cost Calculators
Compare API pricing, estimate token costs and forecast AI spending across providers.
Cost & Pricing Tools
AI Credit & Cost Calculator
Compare API costs across 20+ models from OpenAI, Anthropic, Google and more. Furthermore, the recommendation engine identifies the best-value option for your use case.
AI Token Counter
Count tokens in real time with cost estimates for GPT, Claude and Gemini models. Furthermore, colour-coded bars show context window fit.
AI Fine-Tuning Cost Calculator
Compare training and inference costs across OpenAI, Google, Together AI and Mistral. Furthermore, includes LoRA vs full fine-tuning comparison.
AI Agent Cost Simulator
Estimate multi-step agentic workflow costs with per-step breakdown. Furthermore, calculate daily, monthly and annual projections.
AI Subscription vs API Calculator
Compare ChatGPT Plus, Claude Pro and Gemini subscriptions against pay-per-token API pricing. Furthermore, find the exact break-even usage point.
AI Embedding Cost Calculator
Calculate embedding generation and vector database storage costs. Furthermore, compare five models with Pinecone storage estimates.
AI Image Token Calculator
Estimate tokens and cost for sending images to GPT-4o, Claude and Gemini vision APIs. Furthermore, uses resolution-based tile calculation.
AI GPU Cost Calculator
Compare H100, A100, L4 and T4 GPU pricing across AWS, GCP, Azure and Lambda Labs. Furthermore, the cheapest provider is highlighted per GPU type.
AI Chatbot Conversation Cost
Calculate AI cost per customer conversation across six models. Furthermore, compare against human agent costs with savings percentage.
AI Spending Forecast Calculator
Project AI spend over 24 months with usage growth and price deflation curves. Furthermore, see cumulative savings from falling API prices.
No matching tools found.
AI Planning & Strategy
Plan context windows, compare benchmarks, calculate ROI and check rate limits.
Planning & Analysis Tools
AI ROI Calculator
Calculate return on investment for AI automation projects. Furthermore, includes payback period and three-year cumulative projections.
AI Context Window Planner
Plan token budgets for system prompts, RAG chunks and output headroom. Furthermore, see which models fit your context requirements.
AI Model Benchmark Comparator
Compare MMLU, HumanEval, GSM8K and instruction-following scores for 12 models. Furthermore, highlights category leaders at a glance.
AI Rate Limit Calculator
Check if your usage fits within OpenAI, Anthropic and Google rate limits. Furthermore, shows TPM and RPM against seven provider tiers.
AI Dataset Size Calculator
Estimate ideal dataset size for fine-tuning by task type and quality target. Furthermore, includes epoch and training cost estimates.
No matching tools found.
AI Developer Tools
Generate JSON schemas for function calling and build production-ready prompt templates.
Developer Utilities
JSON Schema Generator for AI
Paste example JSON and generate a schema for OpenAI function calling and Anthropic tool use. Furthermore, supports nested objects and arrays.
AI Prompt Template Builder
Generate production-ready system prompts for eight template categories. Furthermore, includes token count and cost estimate per prompt.
No matching tools found.
AI Content & Education
Check readability scores, explore AI terminology and calculate meeting costs.
Content & Learning Tools
AI Readability Score Checker
Check Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog and SMOG scores. Furthermore, real-time analysis with grade-level recommendations.
AI Glossary & Term Explainer
Search 100+ AI and machine learning terms explained in plain English. Furthermore, covers LLMs, RAG, embeddings, tokens and transformers.
AI Meeting Cost Calculator
Calculate the true cost of meetings from salaries and duration. Furthermore, estimate AI alternative savings as a percentage.
No matching tools found.
AI Tools for Everyone
AI adoption requires clear cost visibility. Whether you are evaluating models for a new project, forecasting annual API spend or building a business case for automation, these tools provide the numbers you need. Furthermore, each calculator handles multiple providers and models in a single comparison view.
The developer tools are particularly useful for teams integrating AI APIs. Similarly, the benchmark comparator helps product managers choose models based on capability rather than marketing claims. Moreover, all calculations use precise, officially published pricing and performance figures.
Nothing is stored and nothing is uploaded. Your inputs stay entirely on your device. Additionally, all tools are responsive and work on phones and tablets without any installation.