Next.js 16 vs Nuxt 4

Real-world performance comparison based on identical SaaS dashboard implementations.

Next.js 16

Next.js 16

VPS (Bun)

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The React meta-framework running on Bun runtime. Built by Vercel, Next.js supports SSR, SSG, ISR, and streaming—all configured per-route. This variant uses Bun runtime for potentially faster startup times and request handling. The App Router architecture brings React Server Components, nested layouts, and Server Actions. While Bun support for Next.js is unofficial, it works in practice and offers a comparison point for runtime performance. Ideal for teams wanting to benchmark Node.js vs Bun performance with their Next.js applications.

Nuxt 4

Nuxt 4

VPS

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The intuitive Vue framework for building full-stack web applications. Nuxt extends Vue with file-based routing, auto-imports, and a powerful module ecosystem that handles everything from authentication to SEO. Nuxt 4 brings improved TypeScript support, faster dev server, and enhanced hybrid rendering with per-route SSR/SSG/ISR configuration. The Nitro server engine deploys anywhere—Node, Deno, Cloudflare Workers, or static hosting. If you're in the Vue ecosystem, Nuxt is the obvious choice. Its convention-over-configuration approach and rich module library (Nuxt Content, Nuxt Image, Nuxt Auth) accelerate development significantly.

Performance Metrics

Lower is better for all metrics. Green indicates the faster framework.

Metric Next.js 16 Nuxt 4 Winner
TTFB (p50) 0ms 47.9ms ◀
TTFB (p95) 0ms 53.15ms ◀
LCP (p50) 0ms 72ms ◀
LCP (p95) 0ms 80ms ◀
CLS 0 0 =
TBT N/A 0 ms -
LCP → TTFB N/A N/A -
LCP → Load Delay N/A N/A -
LCP → Load Duration N/A N/A -
LCP → Render Delay N/A N/A -
Performance Score N/A 99 -
SEO Score N/A 92 -
Accessibility Score N/A 80 -
Best Practices Score N/A 100 -

LLM Understanding (Claude Opus 4.5)

How efficiently Claude Opus 4.5 understands the codebase. Based on exploration + validation tests.

Metric Next.js 16 Nuxt 4 Winner
Exploration Time N/A 3958ms -
Exploration Tokens N/A 5681 -
Files Examined N/A 11 -
Validation Accuracy N/A 86% -
Time Per File N/A 360ms -
Tokens Per File N/A 3488 -
Efficiency Score N/A 24.39 -

LLM Understanding (Claude Haiku 4.5)

How efficiently Claude Haiku 4.5 understands the codebase. Based on exploration + validation tests.

Metric Next.js 16 Nuxt 4 Winner
Exploration Time N/A 2493ms -
Exploration Tokens N/A 5707 -
Files Examined N/A 11 -
Validation Accuracy N/A 82% -
Time Per File N/A 227ms -
Tokens Per File N/A 3482 -
Efficiency Score N/A 32.06 -

Build Metrics

Metric Next.js 16 Nuxt 4 Winner
Bundle Size (JS) 642.6KB 252.2KB ▶
Bundle Size (CSS) 23.4KB 5.3KB ▶
Build Time 0s 0s =
Dependencies 19 10 ▶

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