Token Usage Calculator

Calculate ChatGPT API costs and estimate token consumption

Text Input & Analysis

Input Text (Prompt + Context)

Characters: 0 Words: 0 Estimated Tokens: 0

Expected Output Length (tokens)

Average response length: Short (50-150), Medium (150-500), Long (500-2000)

AI Model Selection

OpenAI Model

Model Pricing (per 1K tokens)

Input: $0.0015

Output: $0.002

Context Limit: 4,096

Usage Scenarios

Usage Frequency

Project Type

Response Complexity

Advanced Configuration

Temperature

Max Tokens

Top P

Presence Penalty

Token Usage & Cost Analysis

850

Total Tokens/Call

$0.0025

Cost per Call

210

Calls/Month

$15.75

Monthly Cost

Token Breakdown

Input Tokens: 500

Output Tokens: 350

Total per Call: 850

Input Cost: $0.0008

Output Cost: $0.0007

Total per Call: $0.0015

Cost Projections

$0.52

Daily

$3.64

Weekly

$15.75

Monthly

$189.00

Yearly

Model Cost Comparison (Monthly)

Cost Optimization Tips

Usage Considerations

Understanding Tokens

What are Tokens?

Tokens are pieces of words used for processing. 1 token ≈ 4 characters or ¾ words in English.

Token Calculation

Both input (prompt) and output (response) tokens count toward your usage and costs.

Context Limits

Each model has a maximum context window (tokens for input + output combined).

Pricing Structure

GPT-4 Models

Most capable but expensive. Best for complex reasoning and high-quality outputs.

GPT-3.5 Turbo

Fast and cost-effective. Great for most applications with good quality.

Legacy Models

Older models like Ada, Babbage. Very cheap but limited capabilities.

Pay-per-Use

No subscription fees - pay only for what you use based on token consumption.

OpenAI Model Comparison (2025 Pricing)

Model	Context	Input Cost	Output Cost	Best For
GPT-4	8,192 tokens	$0.03/1K	$0.06/1K	Complex reasoning, high-quality content
GPT-4 Turbo	128,000 tokens	$0.01/1K	$0.03/1K	Large documents, extended context
GPT-3.5 Turbo	4,096 tokens	$0.0015/1K	$0.002/1K	General use, cost-effective
GPT-3.5 16K	16,384 tokens	$0.003/1K	$0.004/1K	Longer conversations, documents
Ada	2,049 tokens	$0.0004/1K	$0.0004/1K	Simple tasks, embeddings