Calculadora de Custos OpenAI

Ferramenta online gratuita calculate openai api costs instantly. estimate gpt-4 and gpt-3.5 pricing for prompts and completions. free online tool for developers and businesses managing openai budgets.

O que é Calculadora de Custos OpenAI?

A powerful developer tool designed to help you work more efficiently. OpenAI Cost Calculator provides accurate results instantly with a clean, intuitive interface. Perfect for developers, engineers, and IT professionals.

Fórmula

custo = (entradatokens × entradaPricePer1K ÷ 1000) + (saídatokens × saídaPricePer1K ÷ 1000)

Como calcular

Enter your input in the field above.
Configure any available options to customize the output.
View the results instantly with real-time updates.
Copy or export your results for use in your projects.
Compare diferentes modelos da OpenAI para encontrar o melhor valor.

Exemplo

A chatbot sends 1,500 input tokens to GPT-4o and generates 300 output tokens. Cost: (1500/1000 × $0.0025) + (300/1000 × $0.01) = $0.00375 + $0.003 = $0.00675.

Benefícios Principais

Get accurate results instantly in your browser.
Save time with real-time calculations as you type.
No data leaves your device - complete privacy.
Free to use on any device, no sign-up required.

Erros Comuns a Evitar

Not accounting for system prompt tokens
Using wrong model tier pricing assumptions
Esquecer que os tokens de raciocínio da série o se somam ao custo total
Assumir que todos os modelos têm a mesma janela de contexto

Dicas Profissionais

Use GPT-4o Mini for simple classification tasks
Reserve GPT-4o for complex reasoning and analysis
Optimize prompts to reduce token counts
Use o GPT-4.1 para tarefas de contexto longo que exigem até 1M de tokens

Termos Chave Explicados

GPT-4o: OpenAI flagship multimodal model
GPT-4o Mini: Lightweight cost-effective model
Token: Text unit processed by the model
Context window: Maximum tokens per request
o4-mini/o3: Modelos otimizados para raciocínio
Tokens de raciocínio: tokens internos de cadeia de pensamento na série o

Casos de uso comuns

Estimating chatbot operating costs
Budgeting for IA-powered features
Comparing GPT-4o vs GPT-4o Mini costs
Planning API usage at scale
Escolher entre modelos padrão e de raciocínio

Perguntas Frequentes

What is the difference between GPT-4o and GPT-4o Mini?

GPT-4o is the flagship model with full capabilities at $0.0025/$0.01 per 1K tokens. GPT-4o Mini is a smaller, faster model at $0.00015/$0.0006 per 1K tokens — ideal for simpler tasks.

How accurate are these cost estimates?

Costs are calculated using OpenAI's published API pricing as of 2026. Actual costs may vary based on caching, batching, and special pricing agreements.

Does OpenAI charge for both input and output tokens?

Yes, OpenAI charges separately for input (prompt) tokens and output (completion) tokens. Output tokens are typically more expensive.

A OpenAI cobra tanto por tokens de entrada quanto de saída?

Sim, a OpenAI cobra separadamente por tokens de entrada (prompt) e saída (completamento). Tokens de saída são geralmente mais caros. Os modelos da série o também cobram por tokens de raciocínio internos.

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