Valibot
A lightweight TypeScript data validation library comparable in functionality to Zod, distinguished by a smaller bundle size and modular design. It is suited for frontend and edge computing scenarios where package size is a constraint.
Core Facts
@ai-sdk/valibot is a Valibot integration module provided by the Vercel AI SDK, allowing developers to use Valibot to define data structures and integrate them into the AI SDK's generation pipeline.
Valibot is a lightweight schema validation library that adopts a functional, tree-composable design and supports tree-shaking.
In certain scenarios, Valibot can keep the compressed bundle size under 1KB, whereas fully importing Zod requires approximately 14KB.
Timeline (last 90 days)
The AI SDK officially maintains both Zod and Valibot schema adapters.
Switching the schema validation library does not affect upper-layer calls such as generateObject.
Zod offers a chained API and broader ecosystem integration; both it and Valibot can perform type inference and runtime validation, with the differences mainly in bundle size, validation performance and API style.
Valibot is a lightweight, tree-shakable schema validation library, often compared with Zod.
Valibot is often compared with Zod.
Common schema validation solutions include Zod, Yup, Joi and Valibot.
Compared with Zod, Valibot has a similar API style but is lighter by default.
In the JavaScript/TypeScript ecosystem, schema usually refers to an object used to describe and validate data structures, with common implementations including Zod, Valibot, and others.
Valibot supports synchronous and asynchronous validation, transform, pipe composition, and automatic derivation of TypeScript types from schemas.
Standard Schema is a common interface specification across validation libraries, designed to let different validation implementations such as Zod, Valibot and ArkType expose a unified ~standard interface.
25 more timeline events
All Facts (20)
@ai-sdk/valibot is a Valibot integration module provided by the Vercel AI SDK, allowing developers to use Valibot to define data structures and integrate them into the AI SDK's generation pipeline.
85%VerifiedValibot is a lightweight schema validation library that adopts a functional, tree-composable design and supports tree-shaking.
75%VerifiedIn certain scenarios, Valibot can keep the compressed bundle size under 1KB, whereas fully importing Zod requires approximately 14KB.
75%VerifiedValibot is a lightweight TypeScript data validation library similar to Zod, but with a smaller bundle size and a modular design.
75%UnverifiedSwitching the schema validation library does not affect upper-layer calls such as generateObject.
50%UnverifiedThe AI SDK officially maintains both Zod and Valibot schema adapters.
50%UnverifiedZod offers a chained API and broader ecosystem integration; both it and Valibot can perform type inference and runtime validation, with the differences mainly in bundle size, validation performance and API style.
50%UnverifiedValibot is a lightweight, tree-shakable schema validation library, often compared with Zod.
50%UnverifiedValibot is often compared with Zod.
50%UnverifiedCompared with Zod, Valibot has a similar API style but is lighter by default.
50%UnverifiedCommon schema validation solutions include Zod, Yup, Joi and Valibot.
50%UnverifiedIn the JavaScript/TypeScript ecosystem, schema usually refers to an object used to describe and validate data structures, with common implementations including Zod, Valibot, and others.
50%UnverifiedValibot supports synchronous and asynchronous validation, transform, pipe composition, and automatic derivation of TypeScript types from schemas.
50%UnverifiedStandard Schema is a common interface specification across validation libraries, designed to let different validation implementations such as Zod, Valibot and ArkType expose a unified ~standard interface.
50%UnverifiedAI SDK allows users to use different schema validation libraries (such as Zod, Valibot, ArkType) to define the input and output structures of tool calls
50%UnverifiedValibot is a lightweight, modular TypeScript schema validation library that, compared with Zod, places more emphasis on tree-shaking friendliness and a smaller bundle size.
50%Unverifiedtree-shaking refers to a bundler removing unreferenced code at build time; Valibot adopts a modular design with per-function imports so that unused validators do not enter the final artifact.
50%UnverifiedIn the AI SDK scenario, developers use Valibot to declare a schema describing the JSON structure the model should return, and the SDK converts it into a JSON Schema the model can understand and uses the same schema for runtime validation after the model returns its result
50%Unverified类型安全封装层在 LLM 应用中的常见做法是用 Zod、Valibot 等运行时校验库定义 schema，再通过 z.infer 等工具自动推导出 TypeScript 类型
50%UnverifiedValibot has a smaller bundle size compared to Zod, by a small multiple.
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