head to head · open source
gs-quant vs c15t
gs-quant has 12,974 GitHub stars, 1,752 forks, 73 open issues and last shipped 2 days ago. c15t has 1,897 stars, 218 forks, 27 open issues and last shipped yesterday. gs-quant leads on adoption by 584% (12,974 vs 1,897 stars). gs-quant is written in Python under Apache-2.0; c15t is written in TypeScript under Apache-2.0. gs-quant has attracted 14% as many forks as stars, c15t 11%. c15t was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| gs-quant | c15t | |
|---|---|---|
| GitHub stars | ★ 13K | ★ 1.9K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-16 | 2026-09-17 |
| Forks | ⑂ 1.8K | ⑂ 218 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick gs-quant if
- You weight community size — 13K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick c15t if
- You want the c15t feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and c15t fits your workflow better
About gs-quant
GS Quant is an Apache 2.0 Python toolkit for quantitative finance, maintained by quantitative developers at Goldman Sachs, and it is intended for quants and institutional clients of the bank who build derivative pricing, trading strategy and risk management workflows on top of Goldman Sachs' risk transfer platform.
read the full gs-quant overview →
About c15t
c15t is a TypeScript consent management platform, or CMP, released under Apache 2.0. It helps JavaScript, React, and Next.js teams build cookie banners, preference centers, privacy preferences, and headless consent flows inside their application stack instead of using a black box third party snippet.
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Frequently asked questions
Is gs-quant or c15t more popular?
gs-quant has 12,974 GitHub stars and c15t has 1,897. gs-quant has the larger community by that measure.
Are gs-quant and c15t free?
Both are open source. gs-quant is licensed under Apache-2.0 and c15t under Apache-2.0. Neither carries a licence fee.
What is the difference between gs-quant and c15t?
gs-quant is written in Python and c15t in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, gs-quant or c15t?
Choose gs-quant if you want the larger community (12,974 stars) or its Apache-2.0 licence terms. Choose c15t if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.