{"slug":"zustand","name":"Zustand","domain":"zustand-demo.pmnd.rs","verdict":"As of 2026-07-14, ChatGPT, Claude, Gemini, Grok collectively rank Zustand first for react state management library (one of 2 leaderboards it appears on). Source: https://modelsagree.com/product/zustand (modelsagree.com, CC BY 4.0).","best_rank":1,"categories":2,"brief":{"category":"best-react-state-management-library","title":"Best React state management library","rank":1,"of":7,"top":null,"day":"2026-07-16","why":[{"t":"Minimal API without boilerplate","m":["ChatGPT","Claude","Gemini","Grok"],"q":"Minimal API, tiny footprint, excellent TypeScript support, selective subscriptions, and enough middleware for most client-state needs without Redux-style ceremony"},{"t":"Tiny bundle","m":["ChatGPT","Claude","Grok"],"q":"tiny bundle (~1KB)"},{"t":"Excellent performance with minimal re-renders","m":["ChatGPT","Gemini","Grok"],"q":"excellent performance with minimal re-renders"},{"t":"Excellent TypeScript support","m":["ChatGPT","Claude"],"q":"excellent TypeScript support"}],"gap":[],"fix":[{"t":"Add first-party server-state","m":["ChatGPT"],"q":"Add a first-party server-state layer comparable to TanStack Query"},{"t":"Stronger conventions and devtools","m":["Claude","Grok"],"q":"Offer stronger built-in conventions and devtools for large teams"},{"t":"Built-in deep nested state updates","m":["Gemini"],"q":"Integrate built-in support for updating deep nested state structures without requiring external helper libraries like Immer."}]},"entries":[{"slug":"best-react-state-management-library","title":"Best React state management library","rank":1,"of":7,"score":20,"appearances":4,"modelRanks":{"ChatGPT":1,"Claude":1,"Gemini":1,"Grok":1},"reason":"Minimal API, tiny footprint, excellent TypeScript support, selective subscriptions, and enough middleware for most client-state needs without Redux-style ceremony","reasons":[{"model":"ChatGPT","reason":"Minimal API, tiny footprint, excellent TypeScript support, selective subscriptions, and enough middleware for most client-state needs without Redux-style ceremony"},{"model":"Claude","reason":"The default choice for new React apps in 2026 — tiny bundle (~1KB), no providers or boilerplate, a simple hook-based API that scales from toy apps to production, first-class TypeScript inference, and huge ecosystem momentum (most-downloaded standalone state library on npm)"},{"model":"Gemini","reason":"Provides an extremely simple, boilerplate-free API using hooks, requires no Context provider wrapping, and features excellent performance with minimal re-renders."},{"model":"Grok","reason":"Minimal API with hooks-first approach, tiny bundle (~1KB), excellent performance via selective subscriptions minimizing re-renders, simple scalable stores without boilerplate or providers, actively maintained with strong middleware ecosystem (persist, devtools, immer), default choice for most new medium apps per 2026 surveys and benchmarks"}],"fixes":[{"model":"ChatGPT","fix":"Add a first-party server-state layer comparable to TanStack Query"},{"model":"Claude","fix":"Offer stronger built-in conventions and devtools for large teams — its unopinionated nature means big codebases drift without self-imposed structure, which is where Redux Toolkit still wins."},{"model":"Gemini","fix":"Integrate built-in support for updating deep nested state structures without requiring external helper libraries like Immer."},{"model":"Grok","fix":"Less built-in structure and devtools depth than Redux, not ideal for massive enterprise teams needing strict patterns and time-travel debugging"}],"updated":"2026-07-14","rank_history":{"days":["2026-06-29","2026-06-30","2026-07-08","2026-07-09","2026-07-10","2026-07-14"],"ranks":[1,1,1,1,1,1]},"reasoning_shift":[{"model":"ChatGPT","from":"2026-07-09","to":"2026-07-10","added":[{"t":"first-party server-state layer","q":"Add a first-party server-state layer comparable to TanStack Query"}],"dropped":[{"t":"easy persistence","q":"easy persistence/middleware"},{"t":"scales to serious production UI state","q":"scales from simple apps to serious production UI state"},{"t":"official large-team and async conventions","q":"Provide more official conventions for large-team architecture and async workflows"}]},{"model":"Gemini","from":"2026-07-08","to":"2026-07-09","added":[{"t":"minimal re-renders","q":"excellent performance with minimal re-renders"},{"t":"deep nested state updates","q":"updating deep nested state structures"},{"t":"no external Immer dependency","q":"without requiring external helper libraries like Immer"}],"dropped":[{"t":"tiny bundle size","q":"a tiny bundle size"},{"t":"auto-generated selector hooks","q":"auto-generating selector hooks"},{"t":"selector performance boilerplate","q":"manual selector boilerplate for performance tuning"}]},{"model":"Claude","from":"2026-07-08","to":"2026-07-09","added":[{"t":"simple hook-based API","q":"a simple hook-based API that scales from toy apps to production"},{"t":"most-downloaded standalone state library","q":"most-downloaded standalone state library on npm"},{"t":"Redux Toolkit still wins","q":"its unopinionated nature means big codebases drift without self-imposed structure, which is where Redux Toolkit still wins"}],"dropped":[{"t":"selector-based subscriptions","q":"selector-based subscriptions that avoid unnecessary re-renders"},{"t":"huge middleware ecosystem","q":"a huge middleware ecosystem (persist, immer, devtools)"},{"t":"server-side per-request stores","q":"store composition, dependency injection, and server-side per-request stores in RSC/Next.js"}]}],"api":"https://modelsagree.com/api/v1/best/best-react-state-management-library.json"},{"slug":"best-state-management-libraries-for-large-react-applications","title":"Best state management libraries for large React applications","rank":1,"of":6,"score":18,"appearances":4,"modelRanks":{"ChatGPT":2,"Claude":2,"Gemini":1,"Grok":1},"reason":"Features a minimal, hook-based API with a selector-driven subscription model that scales easily without context provider wrapper bloat.","reasons":[{"model":"Gemini","reason":"Features a minimal, hook-based API with a selector-driven subscription model that scales easily without context provider wrapper bloat."},{"model":"Grok","reason":"Minimal boilerplate, tiny bundle (~1-2KB), excellent performance with selective re-renders via selectors/subscriptions, simple API that scales naturally for global/shared client state, pairs perfectly with TanStack Query for server state separation, strong real-world adoption and maintenance in 2026 for medium-to-large apps."},{"model":"ChatGPT","reason":"Near-tie for teams valuing simplicity: a small API, selective subscriptions, store access outside React, middleware, and minimal boilerplate deliver strong performance without dictating application architecture."},{"model":"Claude","reason":"The default client-state pick for new large apps: tiny API, no providers, selector-based subscriptions that scale to thousands of components without re-render pathology, middleware for persistence/devtools/immer, and stores usable outside React (event handlers, workers); pairs naturally with TanStack Query — this and Redux Toolkit are a near-tie, split by greenfield vs. brownfield"}],"fixes":[{"model":"ChatGPT","fix":"Its flexibility supplies fewer guardrails, so large teams must establish their own conventions to prevent inconsistent or tangled stores."},{"model":"Claude","fix":"Its minimalism pushes structure onto your team — no enforced patterns for actions, entities, or module boundaries, so very large codebases with many contributors can accrete inconsistent store design that Redux's conventions would have prevented"},{"model":"Gemini","fix":"It offers zero architectural prescription, placing the entire burden of code organization and store splitting on the development team."},{"model":"Grok","fix":"Less rigid structure/enforcement than Redux (can lead to inconsistent patterns in very large multi-team codebases without discipline)."}],"updated":"2026-07-16","api":"https://modelsagree.com/api/v1/best/best-state-management-libraries-for-large-react-applications.json"}],"page":"https://modelsagree.com/product/zustand","check":"https://modelsagree.com/check?q=Zustand","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}