OpenAI GPT Token Counter
Efficiently count OpenAI tokens for various models including GPT-5 and GPT-4.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is OpenAI GPT Token Counter?
A tool to accurately count the number of tokens in a string for all OpenAI Text models, aiding developers in optimizing their usage and costs. Supports GPT-5, GPT-4, GPT-3.5-turbo, and specialized models.
Key differentiator
“The OpenAI GPT Token Counter provides precise and efficient token counting capabilities specifically tailored for developers working with various OpenAI Text models, ensuring optimal usage and cost management.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
The tool is primarily developed for and optimized in JavaScript, which may limit its accessibility to developers working with other languages.
Token counting accuracy can vary depending on the up-to-date status of model-specific tokenization rules maintained by the community, which may not always be current.
Setting up and integrating the tool in non-standard or less common development environments can require additional configuration steps that are not well-documented.
Fit analysis
Who is it for?
✓ Best for
JavaScript developers who need accurate token counting for optimizing their use of OpenAI Text models.
Teams working on projects with strict budget constraints and need to manage API costs effectively.
✕ Not a fit for
Projects that require real-time token counting in a cloud environment, as this tool is designed for local integration.
Developers who are not using JavaScript or do not have the capability to integrate a library into their projects.
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Integrations
Next step
Get Started with OpenAI GPT Token Counter
Step-by-step setup guide with code examples and common gotchas.