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Official benchmark from Vercel measuring AI model performance on Next.js code generation and migration tasks. Evaluates success rate, execution time, token usage, and quality improvements.

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Results

Last updated: December 2025

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Methodology

CategoryDescription
Code GenerationCreating Next.js components, pages, and API routes
MigrationUpgrading from Pages Router to App Router
Best PracticesFollowing Next.js patterns and conventions
TypeScriptProper type safety and inference
Scoring metrics:
  • Success Rate - Percentage of tasks completed correctly
  • Execution Time - Time to complete tasks
  • Token Usage - Efficiency of model responses
  • Quality Score - Code quality and best practices

Next.js Evals

View live results and methodology