Software Alternatives, Accelerators & Startups

Codeium VS Mellum

Compare Codeium VS Mellum and see what are their differences

Codeium logo Codeium

Free AI-powered code completion for *everyone*, *everywhere*

Mellum logo Mellum

Mellum-4b-base is JetBrains' first open-source large language model (LLM) optimized for code-related tasks.
  • Codeium Landing page
    Landing page //
    2023-05-10
Not present

Codeium features and specs

  • Free to Use
    Codeium is available for free, making it accessible to a wide range of users, including individuals and businesses with budget constraints.
  • Advanced AI Technology
    Utilizes state-of-the-art AI models to provide smart code completion, error checking, and other features that enhance developer productivity.
  • Multi-language Support
    Supports a variety of programming languages, making it versatile and useful for developers working in different stacks.
  • User-Friendly Interface
    Designed with a user-friendly interface that makes it easy for both beginners and experienced developers to navigate and use its features.
  • Robust Integration
    Can be integrated with popular code editors like Visual Studio Code, providing seamless usability within existing workflows.
  • Continuous Updates
    Regular updates ensure that the tool stays current with the latest programming standards and technologies.

Possible disadvantages of Codeium

  • Data Privacy Concerns
    Since the tool processes raw code, there may be concerns about data privacy and security for sensitive projects.
  • Limited Offline Functionality
    Requires an internet connection for full functionality, which can be a drawback for developers working in offline or remote environments.
  • Learning Curve
    Despite its user-friendly design, there can be a learning curve for new users to fully understand and utilize all the features.
  • Potential Over-reliance
    Developers might become overly reliant on automated code suggestions, which could impact their coding skills in the long term.
  • Variable Performance
    Performance may vary depending on the complexity of the codebase and the specific languages being used.
  • Integration Bugs
    Like any software, there could be occasional bugs or issues during integration with different development environments.

Mellum features and specs

No features have been listed yet.

Analysis of Codeium

Overall verdict

  • Codeium is considered a valuable tool for developers seeking AI-assisted features to streamline their coding process. Its user-friendly interface and effective code suggestions make it a worthwhile addition to a developer's toolkit.

Why this product is good

  • Codeium is a coding assistant tool designed to improve developer productivity by offering features like code completion, suggestions, and error detection. Its strengths include ease of integration with popular IDEs and a focus on enhancing coding efficiency.

Recommended for

    Codeium is particularly recommended for software developers, coding enthusiasts, and teams looking to boost productivity and reduce the time spent on coding and debugging. It is suitable for beginners who need guidance, as well as experienced developers looking for efficiency enhancements.

Analysis of Mellum

Overall verdict

  • Mellum is a solid, purpose-built code completion model from JetBrains, offering strong performance for developer-focused tasks while being open and relatively lightweight compared to general-purpose LLMs.

Why this product is good

  • It is specifically optimized for code completion rather than being a general-purpose model, making it efficient for its intended use case
  • Developed by JetBrains, a company with deep expertise in developer tools and IDEs
  • Openly available on Hugging Face, allowing developers to experiment, fine-tune, and self-host
  • Relatively lightweight and focused, which can mean faster inference and lower resource requirements
  • Trained on a large corpus of code across multiple programming languages

Recommended for

  • Developers looking for a specialized code completion model
  • Teams wanting to self-host or fine-tune an open code model
  • Researchers exploring code-focused language models
  • Integration into IDEs and developer tooling
  • Users who prefer a focused, efficient model over large general-purpose LLMs for coding tasks

Codeium videos

Codeium: Free Copilot Alternative

Mellum videos

Owner of Pike Place Chowder Larry Mellum On King 5 TV

More videos:

  • Review - Jetbrains AI Mellum LLM: 4x schneller entwickeln mit KI-Power

Category Popularity

0-100% (relative to Codeium and Mellum)
Developer Tools
93 93%
7% 7
AI
88 88%
12% 12
Coding
77 77%
23% 23
Code Autocomplete
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Codeium and Mellum

Codeium Reviews

11 Best AI Coding Assistants: Top Tools Every Developer Needs in 2025ย 
Codeium (Windsurf) is a fast, privacy-focused AI coding assistant that supports autocomplete, refactoring, and in-editor chat across multiple programming languages. Often, itโ€™s used by full-stack developers who need instant, context-aware suggestions without compromising code privacy. Itโ€™s particularly well-suited for teams in regulated environments where data logging and...
Source: blog.devart.com
10 Best Github Copilot Alternatives in 2024
Yes, some free alternatives to GitHub Copilot like Codeium offer features that can be suitable for enterprise use. However, for advanced needs, you might consider paid options like TabNine Enterprise or DeepCode (Snyk Code), which provide additional support and security features.
The Best GitHub Copilot Alternatives for Developers
Another notable feature of Codeium is context pinning. It allows developers to pin any scope of code, such as a repository, a file, or a function, so Codeium takes the code in that section more seriously when generating responses. Developers can apply this feature once and save it while they work, enhancing accuracy in coding tasks. Codeium is capable of meeting a variety of...
Source: softteco.com
6 GitHub Copilot Alternatives You Should Know
Codeium is another LLM-driven coding assistant designed to enhance productivity and code quality for developers. It provides smart code completions and refactorings. Codeium supports a variety of programming languages and integrates with popular IDEs.
Source: swimm.io

Mellum Reviews

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

Social recommendations and mentions

Based on our record, Codeium seems to be more popular. It has been mentiond 46 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Codeium mentions (46)

View more

Mellum mentions (0)

We have not tracked any mentions of Mellum yet. Tracking of Mellum recommendations started around May 2025.

What are some alternatives?

When comparing Codeium and Mellum, you can also consider the following products

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

Cursor - The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.

Tabnine - TabNine is the all-language autocompleter. We use deep learning to help you write code faster.

Void Editor - Void is an open source Cursor alternative. Full privacy. Fully-featured.

ChatGPT - ChatGPT is a powerful, open-source language model.

Claude Code - Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebaseโ€”no more context switching, just breakthrough results.