💰 LLM Cost Calculator

Compare AI API costs across providers instantly - A free, open-source web tool to estimate and compare LLM costs from OpenAI, Anthropic, Google, Azure, Mistral, and local models.

✨ Features

• 🚀 Instant Calculations - Real-time cost estimates as you adjust parameters
• 🏢 Multiple Providers - Compare OpenAI, Anthropic, Google, Azure, Mistral, and local models
• 📊 Use Case Templates - Quick-start templates for common scenarios
• 💸 Savings Analysis - See potential savings by switching providers
• 📈 Detailed Breakdown - Input, output, and total costs
• 🎯 No Installation - Runs entirely in your browser
• 📱 Mobile Friendly - Works on all devices
• 🔒 Privacy First - All calculations happen client-side

🎯 Supported Providers

Provider	Models Included	Notes
OpenAI	GPT-4o, GPT-4o Mini, GPT-4 Turbo, GPT-4, GPT-3.5 Turbo	Industry standard
Anthropic	Claude 3.5 Sonnet, Claude 3 Opus/Sonnet/Haiku	Best for long context
Google	Gemini 1.5 Pro/Flash, Gemini Pro	2M token context!
Azure OpenAI	GPT-4o, GPT-4 Turbo, GPT-3.5 Turbo	Enterprise features
Mistral AI	Large, Medium, Small, Tiny	European provider
Local/Self-Hosted	Llama 3, Mixtral, Custom	$0 API costs

🚀 Quick Start

Option 1: Use Online (Recommended)

Visit the live demo: https://turtles-ai-lab.github.io/llm-cost-calculator

Option 2: Run Locally

# Clone the repository
git clone https://github.com/Turtles-AI-Lab/llm-cost-calculator.git
cd llm-cost-calculator

# Open in browser
open index.html
# or double-click index.html

No dependencies, no build step, no servers - just open and use!

📖 How to Use

1. Choose a Use Case Template (Optional)

Select from pre-configured scenarios:

• Customer Support Chatbot - 500 input / 200 output tokens
• Document Analysis - 3000 input / 500 output tokens
• Code Generation - 800 input / 600 output tokens
• Ticket Classification - 300 input / 100 output tokens
• Content Generation - 500 input / 1000 output tokens

2. Configure Your Parameters

• Input Tokens: Average tokens sent to the LLM per request (~100 tokens ≈ 75 words)
• Output Tokens: Average tokens generated by the LLM per request
• Requests per Day: How many API calls you'll make daily
• Time Period: Calculate costs for 1 day, 1 week, 1 month, 3 months, or 1 year

3. Select Providers

Check/uncheck providers to customize your comparison

4. View Results

• Cost Summary: Best value, price range, potential savings, annual cost
• Detailed Table: Full breakdown sorted by cost (cheapest first)
• Per-Request Cost: See exactly what each API call costs you

💡 Use Cases

For Startups

• Evaluate provider costs before building your product
• Find the most cost-effective model for your use case
• Budget for API costs in your financial projections

For Developers

• Compare costs when integrating LLMs
• Decide between cloud APIs vs. local hosting
• Optimize token usage to reduce costs

For Enterprises

• Estimate annual LLM infrastructure costs
• Compare Azure vs. other providers for enterprise features
• Calculate ROI on local LLM deployment

For MSPs/Agencies

• Price AI services for clients
• Calculate margin on LLM-powered offerings
• Compare multi-tenant costs

📊 Example Calculations

Customer Support Bot

• Input: 500 tokens (customer inquiry)
• Output: 200 tokens (AI response)
• Volume: 1,000 requests/day
• Result: GPT-4o Mini costs $45/month vs. GPT-4 at $18,000/month

Document Analysis

• Input: 3,000 tokens (document)
• Output: 500 tokens (summary)
• Volume: 100 requests/day
• Result: Claude 3 Haiku costs $11.25/month vs. Claude 3 Opus at $562.50/month

🔧 Customization

Add Your Own Models

Edit js/providers.js:

const LLM_PROVIDERS = {
    // Add your provider
    myProvider: {
        name: "My Provider",
        models: {
            "my-model": {
                name: "My Model",
                inputPrice: 1.00,  // per 1M tokens
                outputPrice: 3.00, // per 1M tokens
                contextWindow: 8192
            }
        }
    }
};

Add Use Case Templates

Edit js/providers.js:

const USE_CASE_TEMPLATES = {
    myUseCase: {
        name: "My Use Case",
        avgInputTokens: 500,
        avgOutputTokens: 500,
        requestsPerDay: 1000
    }
};

🎨 Screenshots

🤝 Contributing

Contributions welcome! Ways to help:

• 🔄 Update pricing data
• ➕ Add new providers or models
• 🐛 Report bugs or issues
• 💡 Suggest features
• 📖 Improve documentation
• 🌍 Add translations

See CONTRIBUTING.md for guidelines.

📊 Pricing Data Sources

Pricing updated September 2025 from official sources:

• OpenAI Pricing
• Anthropic Pricing
• Google AI Pricing
• Azure OpenAI Pricing
• Mistral AI Pricing

Note: Pricing may change. Always verify with official provider documentation before making decisions.

📄 License

MIT License - see LICENSE file

Free to use, modify, and distribute. Attribution appreciated!

🏢 About

Built by Turtles AI Lab - We build AI-powered business solutions.

Related Projects

• TicketZero AI - Atera Edition - AI ticket resolution for Atera
• TicketZero AI - Zoho Edition - AI ticket resolution for Zoho Desk
• AI Ticket Classifier - Open-source ticket classification library

Commercial Services

Need help with AI integration?

• Custom LLM solution development
• Cost optimization consulting
• Integration support

📧 Contact: jgreenia@jandraisolutions.com

⭐ Support

If you find this tool useful:

• ⭐ Star this repository
• 🐛 Report bugs or request features
• 💬 Share with your network
• 📖 Improve documentation

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Made with ❤️ by Turtles AI Lab

Helping businesses make informed decisions about AI costs.