LLM Cost Calculator

Estimate token cost for OpenAI GPT-4, Claude, and other LLM APIs. Input vs output tokens, pricing per model.

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  • ✓ Execução 100% no Navegador: Seus dados nunca saem do seu dispositivo nem tocam servidores remotos.
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  • ✓ Gratuito e Ilimitado para Sempre: Sem cadastro, sem planos pagos e sem limites de uso.
  • ✓ Em Conformidade com Padrões: Construído estritamente segundo padrões web RFC, ISO e W3C.

Free Online LLM Cost Calculator

The LLM Cost Calculator is a high-speed, privacy-first web utility in the LLM Tools suite designed to estimate token cost for openai gpt-4, claude, and other llm apis. input vs output tokens, pricing per model directly in your browser without requiring software installations, browser extensions, or account registrations.

Especificações Técnicas e Arquitetura

Execution Environment:
100% Client-Side Browser Sandbox
Data Privacy:
Zero Server Storage / No Tracking
Processing Speed:
Real-time local CPU execution
Cross-Platform:
Works on Windows, macOS, Linux, iOS & Android

Prompt Engineering & Token Estimation Engine

LLM utilities evaluate prompt lengths, structure system instructions, and calculate approximate token counts based on byte-pair encoding (BPE) algorithms used by OpenAI, Anthropic, and Google models. This helps prevent token budget overflows and optimizes monthly API expenditure.

1

Provide Input

Enter, paste, or upload your data into the input field above.

2

Configure & Process

The tool immediately processes your input in real time according to your chosen settings.

3

Copy or Save

Use the Copy button to copy the output to your clipboard, or download the result to your device.

Nota para desenvolvedores: Counting tokens before calling expensive LLM APIs prevents unexpected bill spikes and truncated model responses.
LLM Cost Calculator – Free Online Tool Screenshot
LLM Cost Calculator pré-visualização da interface

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