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AI & LLM

LLM API Pricing Comparison Calculator | Free Online Tool

Compare costs of GPT-5, Claude Opus, and Gemini per token with our free LLM API pricing calculator tool. Simple and effective.

LLM API Pricing Comparison

Compare monthly costs across 13 major AI models

Prices last updated: April 2026
1.0M
100K100.0M
500K
100K100.0M
Total input: 1.0M tokens/moTotal output: 500K tokens/mo
Model
Provider
Input $/1M
Output $/1M
Monthly Cost
Context
GPT-4.1 nanoCheapest
OpenAI$0.10$0.40$0.3001M
Gemini 2.5 Flash
Google$0.15$0.60$0.4501M
Llama 4 Maverick
Fireworks$0.22$0.88$0.6601M
DeepSeek V3
DeepSeek$0.27$1.10$0.82064K
GPT-4.1 mini
OpenAI$0.40$1.60$1.201M
DeepSeek R1
DeepSeek$0.55$2.19$1.6564K
Claude Haiku 3.5
Anthropic$0.80$4.00$2.80200K
Mistral Large
Mistral$2.00$6.00$5.00128K
GPT-4.1
OpenAI$2.00$8.00$6.001M
Gemini 2.5 Pro
Google$1.25$10.00$6.251M
GPT-5.4
OpenAI$2.50$10.00$7.50256K
Claude Sonnet 4
Anthropic$3.00$15.00$10.50200K
Claude Opus 4Priciest
Anthropic$15.00$75.00$52.50200K

Most Affordable

GPT-4.1 nano

$0.300/month

Largest Context

Llama 4 Maverick

1M tokens

Cost Spread

175x

difference between cheapest and priciest

Privacy Guarantee

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About This Tool

What is LLM API Pricing Comparison Calculator?

The LLM API Pricing Comparison Calculator is a specialized tool designed to help users quickly determine and compare the costs associated with different Large Language Model (LLM) APIs, specifically GPT-5, Claude Opus, and Gemini. By inputting the number of tokens you plan to use, the tool calculates the estimated cost for each model, providing an easy side-by-side comparison.

Key Features

  • Calculates cost per token for GPT-5, Claude Opus, and Gemini.
  • Instant feedback with a simple, user-friendly interface.
  • Responsive design works well on both mobile and desktop.
  • Real-time error validation for negative inputs.
  • Uses Tailwind CSS for modern, visually appealing design.

Common Use Cases

This tool is particularly useful for developers and businesses looking to integrate language models into their applications. It helps in budgeting and cost analysis by providing a clear comparison of different API costs. Whether you're developing a chatbot, a content generator, or any application utilizing LLMs, knowing the cost implications is crucial.

How to Use LLM API Pricing Comparison Calculator

  1. Enter the number of tokens you expect to use in the provided input field.
  2. Instantly see the calculated costs for GPT-5, Claude Opus, and Gemini displayed in a grid below the input.
  3. Compare the costs to determine which API offers the best value for your needs.

Frequently Asked Questions (FAQ)

What is a token in the context of LLM APIs?
A token generally represents a word or a part of a word. Token counts are used to measure the size of the input or output data processed by the model.
Why does the cost vary between different models?
Costs vary due to differences in model architecture, efficiency, and the computational resources required to run them.
Is this tool accurate for enterprise-level estimations?
This tool provides an estimation based on typical pricing but for enterprise-level usage, consulting with the API provider for accurate pricing is recommended.
Can I use this tool to calculate costs for other models?
This version specifically compares GPT-5, Claude Opus, and Gemini. For other models, you would need to know their pricing structure and adapt the tool accordingly.