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I was looking at all their speed metrics, and can you explain to me where the speed makes a difference?

We only use zod to validate forms, so I keep thinking "how does this matter?" Are people maybe using it to validate high throughput API input messages or something like that, where performance may matter more?

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Yes, we use it to validate the API responses from the backend (as well as type validation on the backend itself from any frontend POST requests), and especially on the client side, speed and bundle size is very important.

Does arktype not come with a larger bundle size than zod? That was the reason I was shying away from it at the moment, especially with the bundle size reductions with zod 4 as well

[1] https://www.reddit.com/r/typescript/comments/1i3ogwi/announc...

Yeah, I can't see zod really adding that much overhead in the critical latency path for all but extremely large responses. Sometimes people pick "the fastest" library without considering whether the performance is relevant for a given code path.

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