Jarred Sumner

Bun

@jarredsumner

building @bunjavascript at @anthropicai. formerly: @stripe (twice) @thielfellowship. high school dropout. npm i -g bun

San Francisco, CA bun.com Joined May 2014

647 Following 199K Followers 27K Posts

Latest posts 5

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Jarred Sumner @jarredsumner Dec 2, 2025

People frequently ask:

> How is Bun sustainable? If I bet my company’s tech stack on Bun, will Bun still be around in a few years?

We didn’t have a great answer to this question, until today

Bun @bunjavascript Dec 2, 2025

Bun is joining Anthropic!

bun.com/blog/bun-joins…
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Jarred Sumner @jarredsumner 1d

we filmed the bun v1.5 video today

Jarred Sumner @jarredsumner 1d

wonder if the reason I always sound like a robot in bun videos is I sleep like 4 hrs the night before, for various reasons each time

Jarred Sumner @jarredsumner 3d

assume every dependency has security vulnerabilities, including stable & fuzzed software used by millions of people daily

last couple weeks of security incidents are likely the new normal for awhile - not a crazy couple of weeks

so, making exploits more expensive is worthwhile

Jarred Sumner Verified account @jarredsumner 3d

> Won’t this lead to the same vulnerability appearing elsewhere?

Similar, yes. Same, no. And similar is a whole lot more expensive to validate and reproduce than same. The same exploit wouldn’t just work for every project using the dependency. Today, it often does.
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Jarred Sumner @jarredsumner 3d

Filming Bun v1.5 video on Friday

Bun v1.5 will include the ahead of time compiler