Token & Cost Estimator

Estimate tokens for GPT-4 and Claude 3 models before making API calls.

Model

Expected output

Cached input

o200k · exact

Text to Tokenize

Estimates update as you type.0 tokens

Upload .txt/.md

Est. Tokens

0% of context

within window: 0% of GPT-4o window

Characters

Words

Tokens / Word

0.000

Tokens / 100 chars

0.0

o200k encoder approximation; exact billing uses the provider tokenizer.

Input / 1M

$2.5

Output / 1M

$10

Est. Input Cost

$0.000000

at $2.5/M

Est. Output Cost

$0.005120

512 out tokens

Est. Total Cost

$0.005120

input + 512 output tokens