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Vercel vs. Harper Benchmark Test

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Comparison

Vercel vs. Harper Benchmark Test

Harper

at Harper

June 25, 2026

Harper

at Harper

June 25, 2026

Harper

at Harper

June 25, 2026

June 25, 2026

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Harper

Benchmark results show Harper delivering 4–14x faster response times than Vercel across live, personalized application workloads. The difference comes from Harper’s unified runtime, which brings data, logic, cache, and messaging together to reduce latency and simplify architecture. View the full Vercel vs. Harper benchmark results →

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Harper Named a Sample Vendor in the Gartner® Hype Cycle™ for Digital Commerce, 2026

Harper was named a 2026 Gartner Hype Cycle for Digital Commerce Sample Vendor, recognized in Front-End Cloud for its unified runtime combining data, application logic, messaging, and agent development together.

Harper Named Winner of Two 2026 Data Breakthrough Awards

Harper has been named the winner of two 2026 Data Breakthrough Awards: Open Source Data Platform of the Year and In-Memory Solution of the Year. Harper is the only company recognized in two categories this year, reflecting its unified runtime for agentic engineering that co-locates database, vector search, cache, and application logic into a single multi-threaded process.

Benchmark results show Harper delivering 4–14x faster response times than Vercel across live, personalized application workloads. The difference comes from Harper’s unified runtime, which brings data, logic, cache, and messaging together to reduce latency and simplify architecture. View the full Vercel vs. Harper benchmark results →

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

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Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Download

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Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Download

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Explore Recent Resources

Vercel vs. Harper Benchmark Test

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Comparison

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Harper

Vercel vs. Harper Benchmark Test

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Vercel vs. Harper Benchmark Test

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Vercel vs. Harper Benchmark Test

Harper runs live, personalized apps 4–14x faster than Vercel by unifying data, logic, cache, and messaging in one runtime.

Agentic Engineering Needs an Opinion: Why Scale Starts with Architecture

AI coding works in a sandbox because the environment is trivially narrow. Real systems have history, constraints, and blast radius. Coding agents make sound decisions only when the architecture is explicit and shared. Opinion isn't a constraint on agentic engineering, it's what makes it possible at scale.

Blog

AI coding works in a sandbox because the environment is trivially narrow. Real systems have history, constraints, and blast radius. Coding agents make sound decisions only when the architecture is explicit and shared. Opinion isn't a constraint on agentic engineering, it's what makes it possible at scale.

Stephen Goldberg

CEO & Co-Founder

Agentic Engineering Needs an Opinion: Why Scale Starts with Architecture

AI coding works in a sandbox because the environment is trivially narrow. Real systems have history, constraints, and blast radius. Coding agents make sound decisions only when the architecture is explicit and shared. Opinion isn't a constraint on agentic engineering, it's what makes it possible at scale.

Stephen Goldberg

Agentic Engineering Needs an Opinion: Why Scale Starts with Architecture

AI coding works in a sandbox because the environment is trivially narrow. Real systems have history, constraints, and blast radius. Coding agents make sound decisions only when the architecture is explicit and shared. Opinion isn't a constraint on agentic engineering, it's what makes it possible at scale.

Stephen Goldberg

Agentic Engineering Needs an Opinion: Why Scale Starts with Architecture

AI coding works in a sandbox because the environment is trivially narrow. Real systems have history, constraints, and blast radius. Coding agents make sound decisions only when the architecture is explicit and shared. Opinion isn't a constraint on agentic engineering, it's what makes it possible at scale.

Stephen Goldberg

Building a Cozy Sandbox Game on Harper

A nature-restoration game with six biomes, 150 animals, and a real food web — built with a single Harper component as the entire backend. One YAML file wires the database, API, content seeder, and static host. The same binary ships offline on itch.io.

Blog

A nature-restoration game with six biomes, 150 animals, and a real food web — built with a single Harper component as the entire backend. One YAML file wires the database, API, content seeder, and static host. The same binary ships offline on itch.io.

Bailey Dunning

Forward Deployed Engineer

Building a Cozy Sandbox Game on Harper

A nature-restoration game with six biomes, 150 animals, and a real food web — built with a single Harper component as the entire backend. One YAML file wires the database, API, content seeder, and static host. The same binary ships offline on itch.io.

Building a Cozy Sandbox Game on Harper

A nature-restoration game with six biomes, 150 animals, and a real food web — built with a single Harper component as the entire backend. One YAML file wires the database, API, content seeder, and static host. The same binary ships offline on itch.io.

Building a Cozy Sandbox Game on Harper

A nature-restoration game with six biomes, 150 animals, and a real food web — built with a single Harper component as the entire backend. One YAML file wires the database, API, content seeder, and static host. The same binary ships offline on itch.io.

Your Website was Built for Humans. AI Needs Something Cleaner.

The web spent a decade optimizing for browsers. JavaScript-heavy rendering, dynamic CMS templates, and client-side hydration made pages beautiful and machines blind. AI answer engines retrieve, parse, and cite content directly. If your best content is trapped behind a render cycle, a cleaner source wins.

Blog

The web spent a decade optimizing for browsers. JavaScript-heavy rendering, dynamic CMS templates, and client-side hydration made pages beautiful and machines blind. AI answer engines retrieve, parse, and cite content directly. If your best content is trapped behind a render cycle, a cleaner source wins.

Aleks Haugom

Senior Manager of GTM

Your Website was Built for Humans. AI Needs Something Cleaner.

The web spent a decade optimizing for browsers. JavaScript-heavy rendering, dynamic CMS templates, and client-side hydration made pages beautiful and machines blind. AI answer engines retrieve, parse, and cite content directly. If your best content is trapped behind a render cycle, a cleaner source wins.

Your Website was Built for Humans. AI Needs Something Cleaner.

The web spent a decade optimizing for browsers. JavaScript-heavy rendering, dynamic CMS templates, and client-side hydration made pages beautiful and machines blind. AI answer engines retrieve, parse, and cite content directly. If your best content is trapped behind a render cycle, a cleaner source wins.

Your Website was Built for Humans. AI Needs Something Cleaner.

The web spent a decade optimizing for browsers. JavaScript-heavy rendering, dynamic CMS templates, and client-side hydration made pages beautiful and machines blind. AI answer engines retrieve, parse, and cite content directly. If your best content is trapped behind a render cycle, a cleaner source wins.

Markdown Prerender Template

A high-performance content optimization system that serves pre-rendered markdown versions of web page content to LLM bots.

Repo

A high-performance content optimization system that serves pre-rendered markdown versions of web page content to LLM bots.

Marianne Dillard

Forward Deployed Engineer

Markdown Prerender Template

A high-performance content optimization system that serves pre-rendered markdown versions of web page content to LLM bots.

Marianne Dillard

Markdown Prerender Template

A high-performance content optimization system that serves pre-rendered markdown versions of web page content to LLM bots.

Marianne Dillard

Markdown Prerender Template

A high-performance content optimization system that serves pre-rendered markdown versions of web page content to LLM bots.

Marianne Dillard

Harper's AI Stack: Models API, Agent Loop, and Built-in Agent

Harper 5.1 ships three layered AI capabilities: a provider-agnostic Models API supporting OpenAI, Anthropic, Bedrock, and Ollama; a built-in agentic loop via toolMode: 'auto' with hard budget controls; and an opt-in Harper Agent component. Switching providers is a config change, not a code change.

Tutorial

Harper 5.1 ships three layered AI capabilities: a provider-agnostic Models API supporting OpenAI, Anthropic, Bedrock, and Ollama; a built-in agentic loop via toolMode: 'auto' with hard budget controls; and an opt-in Harper Agent component. Switching providers is a config change, not a code change.

Kris Zyp

SVP of Engineering

Harper's AI Stack: Models API, Agent Loop, and Built-in Agent

Harper 5.1 ships three layered AI capabilities: a provider-agnostic Models API supporting OpenAI, Anthropic, Bedrock, and Ollama; a built-in agentic loop via toolMode: 'auto' with hard budget controls; and an opt-in Harper Agent component. Switching providers is a config change, not a code change.

Harper's AI Stack: Models API, Agent Loop, and Built-in Agent

Harper 5.1 ships three layered AI capabilities: a provider-agnostic Models API supporting OpenAI, Anthropic, Bedrock, and Ollama; a built-in agentic loop via toolMode: 'auto' with hard budget controls; and an opt-in Harper Agent component. Switching providers is a config change, not a code change.

Harper's AI Stack: Models API, Agent Loop, and Built-in Agent

Harper 5.1 ships three layered AI capabilities: a provider-agnostic Models API supporting OpenAI, Anthropic, Bedrock, and Ollama; a built-in agentic loop via toolMode: 'auto' with hard budget controls; and an opt-in Harper Agent component. Switching providers is a config change, not a code change.

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