gpt-tokenizer
A pure JavaScript BPE tokenizer with model metadata and pricing for GPT-5, GPT-4o, o-series, and other OpenAI models
1.3M weekly downloads · 996.1 KB gzip · Health 79/100
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Comparison guide
Gpt-tokenizer vs Js-tiktoken
Side-by-side NPM package comparison
Quick Verdict
Smallest Bundle
Gpt-tokenizer
996.1 KB gzipped
Most Popular
Js-tiktoken
5.8M weekly downloads
Best Maintained
Gpt-tokenizer
80/100 maintenance score
Highest Quality
Gpt-tokenizer
50/100 quality score
Overall Pick
Gpt-tokenizer
Best all-around based on popularity, size, maintenance & quality
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Choosing between Gpt-tokenizer and Js-tiktoken? Here's a data-driven comparison based on real npm data — downloads, bundle size, health scores, and more — to help you decide which package fits your project best.
Downloads & Popularity
Js-tiktoken leads with 5.8M weekly downloads — roughly 4.3x more. Gpt-tokenizer has 1.3M weekly downloads. Higher download counts generally indicate broader community adoption and a larger ecosystem of tutorials, plugins, and support.
Bundle Size
Gpt-tokenizer has the smallest gzipped bundle at 996.1 KB. Js-tiktoken comes in at 2.5 MB. A smaller bundle size means faster page loads, which improves user experience and Core Web Vitals scores.
Health Score Comparison
Gpt-tokenizer has an overall health score of 79/100 (very good), with strong maintenance, security, popularity scores. Js-tiktoken has an overall health score of 61/100 (good), with strong security, popularity scores. Health scores are calculated from maintenance activity, code quality, security posture, popularity, and stability metrics.
When to Choose Each
Choose Gpt-tokenizer if you value large community support, strong security track record. Choose Js-tiktoken if you value large community support, strong security track record.
Our Verdict
Both Gpt-tokenizer and Js-tiktoken are solid choices for JavaScript development. Gpt-tokenizer has the edge in overall health score (79/100), while each package brings unique strengths to the table. Evaluate them based on your project's priorities — whether that's community size, bundle efficiency, or maintenance activity — and choose the one that aligns best with your requirements.
Frequently Asked Questions
- Is gpt-tokenizer better than js-tiktoken?
- It depends on your needs. Gpt-tokenizer has a health score of 79/100 while Js-tiktoken scores 61/100. Js-tiktoken has more recorded weekly downloads (5.8M). Consider your specific requirements — bundle size, community support, and feature set — to decide which is the better fit.
- Which has a smaller bundle size, gpt-tokenizer or js-tiktoken?
- Gpt-tokenizer has the smaller gzipped bundle at 996.1 KB. A smaller bundle means faster load times for your users, which can positively impact SEO and user experience.
- How many developers use gpt-tokenizer vs js-tiktoken?
- Js-tiktoken has more recorded weekly downloads (5.8M). Download counts reflect package installations, not unique developers.
- Which is better maintained, gpt-tokenizer or js-tiktoken?
- Gpt-tokenizer has a maintenance score of 80/100. Gpt-tokenizer scores 80/100 and Js-tiktoken scores 20/100 on maintenance.
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