NO. T-0402 · AI Toolkit
AI API Cost Calculator for Apps
- Free · no signup
- Runs in your browser
About this tool
What will the AI feature in my app cost per month? Compare every model.
Planning a chatbot, an AI assistant or an automation? Enter how many people use it, how often, and how long prompts and answers are — and get the monthly API bill on every major model, the cost per user and per 1,000 requests. Share the scenario with your team in one link.
How to use it
- 01Enter monthly users, requests per user and active days.
- 02Set the average input and output tokens per request.
- 03Pick a model and compare the same usage on all models.
Budget before you build
Turn usage assumptions into a monthly bill in seconds.
Per-user economics
See the AI cost per user to price your plans.
Shareable
Every input lives in the link — send it to a co-founder or client.
Frequently asked questions
How many tokens does a chat request use?
Input includes the system prompt, any documents and the chat history, so it grows during a conversation. 1,000–3,000 input tokens and 200–600 output tokens are common for chat features.
How can I lower the bill?
Use a smaller model for simple tasks, keep prompts short, trim chat history, cache repeated context and use batch APIs where possible.
Does it include caching or batch discounts?
No — it uses standard list prices, so real bills with caching or batching can be lower.
Guetix · Custom
Want AI in your app — on budget?
I build AI features with the right model mix, caching and limits so costs stay predictable.
I'm Hamza — a full-stack developer building fast, SEO-first products.
More free tools
View all 26 →- NO. T-02Popular
AI Token & Cost Calculator
How many tokens is my prompt — and what does it cost on GPT, Claude, Gemini and more?
Open tool - NO. T-0302 · AI
AI Context Window Checker
Will my document fit in GPT, Claude or Gemini? See it before you paste.
Open tool - NO. T-0502 · AI
AI Text Cleaner & Chunker
Clean messy text, hide private data and split it into chunks for ChatGPT or RAG.
Open tool
Results are estimates for informational purposes only and are not financial, tax or legal advice.