head to head · open source
gs-quant vs flashlight
gs-quant has 13,876 GitHub stars, 1,928 forks, 73 open issues and last shipped 6 days ago. flashlight has 1,611 stars, 51 forks, 29 open issues and last shipped 2 days ago. gs-quant leads on adoption by 761% (13,876 vs 1,611 stars). gs-quant is written in Python under Apache-2.0; flashlight is written in TypeScript under MIT. gs-quant has attracted 14% as many forks as stars, flashlight 3%. flashlight 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 | flashlight | |
|---|---|---|
| GitHub stars | ★ 14K | ★ 1.6K |
| License | Apache-2.0 | MIT |
| Written in | Python | TypeScript |
| Last push | 2026-10-28 | 2026-11-01 |
| Forks | ⑂ 1.9K | ⑂ 51 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick gs-quant if
- You weight community size — 14K 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 flashlight if
- You want the flashlight feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and flashlight fits your workflow better
About gs-quant
GS Quant GS Quant is a Python toolkit for quantitative finance, created on top of one of the world’s most powerful risk transfer platforms. Designed to accelerate development of quantitative trading strategies and risk management solutions, crafted over 25 years of experience navigating global markets. It is created and maintained by quantitative developers (quants) at Goldman Sachs to enable the development of trading strategies and analysis of derivative products. GS Quant can be used to facilitate derivative structuring, trading, and risk management, or as a set of statistical packages for data analytics…
read the full gs-quant overview →
About flashlight
Get a performance score for your app 🔦 Flashlight generates a performance score for your Android app, aggregating different metrics. (📱 iOS support is also in the works) 🙅 No setup required in your app 🚀 Measure performance even on production apps ✨ Generates beautiful reports (like this Flatlist/Flashlist comparison) With Flashlight 🔦, you can either: Upload an app and get your performance score on app.flashlight.dev Or use the CLI: flashlight measure : quickly audit your perf with real time measures flashlight test : automate your measures with e2e performance testing over several iterations flashlight…
read the full flashlight overview →
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Frequently asked questions
Is gs-quant or flashlight more popular?
gs-quant has 13,876 GitHub stars and flashlight has 1,611. gs-quant has the larger community by that measure.
Are gs-quant and flashlight free?
Both are open source. gs-quant is licensed under Apache-2.0 and flashlight under MIT. Neither carries a licence fee.
What is the difference between gs-quant and flashlight?
gs-quant is written in Python and flashlight 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 flashlight?
Choose gs-quant if you want the larger community (13,876 stars) or its Apache-2.0 licence terms. Choose flashlight if its feature set, stack or MIT licence fits better. Both are self-hostable.