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GitHub Copilot VS HHVM

Compare GitHub Copilot VS HHVM and see what are their differences

GitHub Copilot

Your AI pair programmer. With GitHub Copilot, get suggestions for whole lines or entire functions right inside your editor.

Rating
5.0 · 1 review
Alternatives Is it good?
HHVM

HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
CallFlow.dev
AI role-play training for sales and call center teams: 700+ realistic scenarios, six caller temperaments, instant five-dimension scoring and coaching. Cut ramp time up to 40% without practicing on real customers. sponsored

Which is more popular?

Based on our record, GitHub Copilot seems to be a lot more popular than HHVM. While we know about 389 links to GitHub Copilot, we've tracked only 7 mentions of HHVM.

social mentions
389 vs 7
Developer Tools popularity
98% vs 2%
alternatives listed
240+ vs 55

Base details

Website, pricing, platforms and company facts side by side.

GitHub Copilot
HHVM
Website github.com hhvm.com
Pricing —
Open source
Company Startup from the United States —
Listed in
Developer Tools Coding Code Autocomplete GitHub AI Assistant AI +3
DevOps Tools Developer Tools Continuous Integration And Delivery Cloud Computing +1

About GitHub Copilot and HHVM

In their own words, as submitted to SaaSHub.

GitHub Copilot
HHVM

Trained on billions of lines of public code, GitHub Copilot puts the knowledge you need at your fingertips, saving you time and helping you stay focused.

Read more about GitHub Copilot

No description of HHVM yet.

Features and specs

What each product offers, as listed by its team.

GitHub Copilot 5 features
HHVM 4 features
  • Productivity Boost
    GitHub Copilot helps developers write code faster by providing intelligent suggestions and automating repetitive tasks. This can save significant time and reduce the cognitive load on developers.
  • Learning Tool
    For less experienced developers, Copilot can serve as a learning tool by suggesting best practices and introducing them to new coding patterns and techniques.
  • Support for Multiple Languages
    Copilot supports a wide range of programming languages, making it a versatile tool for developers working in different tech stacks.
  • Context-Aware Suggestions
    Copilot offers context-aware suggestions based on the code that has been written so far, making its recommendations relevant to the current development task.
  • Integration with GitHub
    Seamless integration with GitHub simplifies the development workflow, enabling smoother transitions from coding to version control and collaboration.

Possible disadvantages

  • Code Quality Concerns
    The quality of the code generated by Copilot may vary, and it might introduce suboptimal code or practices that could lead to maintenance challenges.
  • Security Risks
    Copilot might suggest insecure code patterns or snippets, potentially introducing vulnerabilities into the project if not carefully reviewed by the developer.
  • Dependence on AI
    Over-reliance on Copilot's suggestions can lead to a lack of deep understanding of the code, which may hinder a developer's growth and problem-solving skills.
  • Licensing and Code Reuse Issues
    There are concerns about the legality and ethics of using AI-generated code snippets that might be derived from copyrighted sources, which can lead to licensing issues.
  • Limited Customizability
    Copilot may not always align with specific coding standards or preferences of a development team, and the ability to customize its behavior to enforce such standards is limited.
  • Performance
    HHVM uses Just-In-Time (JIT) compilation to convert PHP code into machine code, which can significantly improve execution speed compared to traditional PHP interpreters.
  • Hack Language Support
    HHVM supports the Hack programming language, which offers additional features like static type checking, generics, and asynchronous code execution, allowing developers to write safer and more efficient code.
  • Scalability
    HHVM is designed to handle high-traffic environments, making it suitable for large-scale applications and websites with high concurrency demands.
  • Open Source
    HHVM is open-source software, allowing developers to contribute to its development and benefit from community-driven improvements and support.

Possible disadvantages

  • Compatibility
    HHVM is not fully compatible with all PHP extensions and libraries. This can create issues when migrating existing PHP applications to HHVM, requiring additional refactoring.
  • Resource Intensive
    HHVM can consume more memory and CPU resources than traditional PHP interpreters, which might be a concern for applications running on limited hardware.
  • Linux Focused
    HHVM primarily supports Linux-based systems. While there is some support for other operating systems, it may not be as robust, limiting its use in heterogeneous environments.
  • Evolving Technology
    HHVM and the Hack language are continuously evolving, which can lead to breaking changes and the need to keep development teams updated with the latest features and fixes.

Analysis

An editorial look at what each product does well and who it suits.

GitHub Copilot
HHVM

Overall verdict

  • Overall, GitHub Copilot is a beneficial tool for many developers, especially those looking to increase their productivity and experiment with new coding styles. It can be seen as an intelligent coding assistant that complements a developer's workflow rather than replaces it.

Why this product is good

  • GitHub Copilot is considered good by many because it provides AI-assisted code completion and suggestions, which can significantly speed up coding tasks and improve productivity. It leverages OpenAI's advanced language models to offer context-aware snippets and solutions that can help developers write code more efficiently, reduce errors, and explore new coding approaches.

Recommended for

  • Software developers seeking to increase productivity
  • Beginner programmers looking for contextual code suggestions
  • Experienced developers interested in exploring and discovering alternative coding solutions
  • Teams aiming to standardize code quality and reduce time spent on routine coding tasks

Overall verdict

  • In recent years, HHVM has shifted focus more towards supporting Hack rather than full PHP compatibility. While it was once a popular option for running PHP applications efficiently, many projects now recommend sticking to PHP 7.x or later, which has seen significant performance improvements. Therefore, HHVM is considered good if you're specifically using Hack, but might not be the best choice for standard PHP applications.

Why this product is good

  • HHVM (HipHop Virtual Machine) was originally developed by Facebook to provide improved performance for PHP applications. It offers features like a just-in-time (JIT) compiler and compatibility with Hack, Facebook's PHP dialect. It has been praised for enhancing the speed of PHP execution, particularly for large-scale applications.

Recommended for

    HHVM is recommended for organizations or projects that primarily use Hack or have legacy systems built around it. It can also be beneficial for enterprises looking to leverage its performance benefits in a Hack environment. However, for new projects or those focused solely on PHP, sticking with the latest PHP versions is advisable.

Videos

Walkthroughs and reviews on video.

GitHub Copilot 5 videos + Add
HHVM 3 videos + Add

Game over… GitHub Copilot X announced

More videos

  • - The New GitHub Copilot X Powered by GPT-4 is Here!
  • - GitHub Copilot X -- AI Programming Gets Better... and Scary.
  • - GitHub Copilot Review 2023: I Love It, But It's Not For Everyone
  • - Is Github Copilot Worth Paying For??

HHVM GLIMPSE MEME REVIEW||HARI HARA VEERA MALLU MEME REVIEW||POWER STAR..!

More videos

  • - HHVM Performance Status - Hack Dev Day
  • - Scaling PHP-based Development with HHVM and Hack

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
GitHub Copilot
HHVM
98% 98%
Developer Tools
2% 2%
0% 0%
DevOps Tools
100% 100%
100% 100%
AI
0% 0%
0% 0%
Continuous Integration And Delivery
100% 100%

User comments

Share your experience with using GitHub Copilot and HHVM. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

GitHub Copilot 5.0 · 1 review
HHVM no reviews yet

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We have no reviews of HHVM yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

GitHub Copilot 389 mentions
HHVM 7 mentions
  • Every $20 AI subscription costs about $100 to serve. The bill is coming.
    I build Browy, an open-source AI agent that lives In a Chrome side panel and a DevTools REPL. It drives the real browser Tabs you have open. The thing it does not have is its own subscription. It uses your existing GitHub Copilot... - Source: dev.to / 21 days ago
  • Test smarter with Snagly: 30 open-source QA skills for AI coding agents
    Snagly is a free, MIT-licensed set of 30 skills for AI coding agents — GitHub Copilot, Claude Code, Cursor, Codex and 70+ others — that turn "an AI that can drive a browser" into "an AI that tests like a QA professional." A skill, if you... - Source: dev.to / 2 months ago
  • I almost credited llms.txt for a Google AI Mode win. Then I read what Google actually says.
    Where llms.txt genuinely gets read is a different layer: coding and agent tooling — Cursor, Claude Code, GitHub Copilot, Windsurf — pulling a documentation site's pages with less token waste, plus emerging agent protocols like OpenAI's... - Source: dev.to / 4 months ago

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  • GraphQL vs REST: 18 Claims Fact-Checked with Primary Sources (2026)
    Facebook ran a massive PHP codebase, scaled through HipHop (a PHP-to-C++ transpiler) and later HHVM (a just-in-time compiler for PHP). Keith Adams , Facebook's Chief Architect and HHVM team lead, describes how Facebook scaled a large,... - Source: dev.to / 6 months ago
  • THT v0.8.1 – A modern re-design of PHP
    $hayStack.contains('needle') This looks more or less like a new language ? It must be amazing amount of time and energy to rewrite PHP in to this. I don't see the benefits. I understand the Facebook's HHVM had some. (https://hhvm.com/)... - Source: Hacker News / almost 2 years ago
  • I know that's the name of the language, I'm asking about the first P
    PHP is nearly as old as the web. Change the conversation and say: I use Hack on the Hip Hop Virtual Machine. Source: over 4 years ago

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When comparing GitHub Copilot and HHVM, you can also consider the following products.

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