Software Alternatives, Accelerators & Startups

Codex by OpenAI VS Tabnine

Compare Codex by OpenAI VS Tabnine and see what are their differences

Codex by OpenAI logo Codex by OpenAI

AI that writes the code for you

Tabnine logo Tabnine

TabNine is the all-language autocompleter. We use deep learning to help you write code faster.
  • Codex by OpenAI Landing page
    Landing page //
    2023-05-19
  • Tabnine Landing page
    Landing page //
    2025-02-16

Codex by OpenAI features and specs

  • Code Generation
    OpenAI Codex can generate code snippets based on natural language prompts, saving time for developers and enhancing productivity.
  • Language Versatility
    It supports multiple programming languages, allowing developers to work in a variety of coding environments.
  • Learning Tool
    Codex serves as an educational tool, helping new programmers understand coding concepts by providing instant code examples.
  • Debugging Assistance
    Codex can assist in debugging by providing possible corrections and optimizations for existing code.
  • Integration Friendly
    It can be integrated into various IDEs and development tools, making it accessible directly within a developer’s workflow.

Possible disadvantages of Codex by OpenAI

  • Accuracy Issues
    The generated code might not always be accurate or optimized, requiring close scrutiny and modifications by the developers.
  • Dependence on Input Quality
    The quality and clarity of the generated code are highly dependent on the quality and specificity of the input prompts.
  • Limited Context Understanding
    Codex may struggle with understanding complex or context-specific requirements, which can lead to inappropriate code suggestions.
  • Security Risks
    There is a potential risk of generating insecure or vulnerable code, which can be a concern for sensitive applications.
  • Cost
    Depending on the usage model, incorporating Codex into development processes may involve significant costs.

Tabnine features and specs

  • Code Autocompletion
    TabNine offers sophisticated AI-powered code autocompletion, which can significantly speed up coding by predicting and suggesting the next bits of code based on the context.
  • Multi-Language Support
    TabNine supports a variety of programming languages, making it a versatile tool for developers who work with multiple languages.
  • Good IDE Integration
    It integrates well with popular Integrated Development Environments (IDEs) such as VSCode, IntelliJ, and Sublime Text, providing a seamless development experience.
  • Context-Aware Suggestions
    TabNine uses machine learning to offer context-aware code suggestions, potentially reducing the likelihood of syntax errors and improving code quality.
  • Productivity Boost
    By reducing the need to type out long code snippets and boilerplate code, TabNine can significantly increase developer productivity.
  • Customizability
    Users can adjust the settings and preferences in TabNine to better fit their coding style and needs, offering a tailored coding assistance experience.

Possible disadvantages of Tabnine

  • Subscription Cost
    TabNine offers premium features that require a subscription, which might be a barrier for some developers or teams with limited budgets.
  • Privacy Concerns
    As an AI-based tool, TabNine may send code snippets to its servers for processing, which can raise privacy and security concerns for some users or organizations.
  • Occasional Irrelevant Suggestions
    Despite advanced algorithms, TabNine can still provide irrelevant or incorrect suggestions, which might interrupt the coding flow.
  • Resource Intensive
    Running an AI-based assistant can be resource-intensive, potentially leading to slowdowns or increased CPU usage, particularly in less powerful machines.
  • Possible Over-Reliance
    Developers might become overly reliant on TabNine for code suggestions, potentially hindering their ability to code effectively without such assistance.
  • Initial Learning Curve
    New users may face an initial learning curve to efficiently utilize all the features and settings of TabNine.

Codex by OpenAI videos

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Tabnine videos

How effective is TabNine? | TabNine Tutorial & Demo

More videos:

  • Review - AI Based Code Auto Completion Tool for SublimeText | VSCode | TabNine
  • Review - Deep TabNine : A Powerful AI Code Autocompleter For Developer || Must Watch
  • Review - Tabnine’s Code Review Agent: Improve your code’s quality, security, and compliance
  • Review - Codeium vs Tabnine | A Full 2025 Comparison

Category Popularity

0-100% (relative to Codex by OpenAI and Tabnine)
Developer Tools
42 42%
58% 58
AI
40 40%
60% 60
Productivity
100 100%
0% 0
Programming
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Codex by OpenAI and Tabnine

Codex by OpenAI Reviews

Top 10 Vercel v0 Open Source Alternatives | Medium
Kicking off our list is OpenAI Codex, a powerful AI model that’s capable of generating code based on natural language descriptions. While not a complete platform like Vercel v0, Codex can be integrated into various development environments to provide AI-assisted coding capabilities.
Source: medium.com

Tabnine Reviews

Top 10 Vercel v0 Open Source Alternatives | Medium
Tabnine is another fantastic AI-powered code completion tool that deserves a spot on our list. What sets Tabnine apart is its ability to learn from your codebase and provide increasingly accurate suggestions over time.
Source: medium.com
10 Best Github Copilot Alternatives in 2024
TabNine is a popular Copilot alternative that uses AI to predict your code. It supports many programming languages and works with editors like VSCode. TabNine offers both free and paid versions, making it a flexible option compared to GitHub Copilot.
The Best GitHub Copilot Alternatives for Developers
Also, TabNine does not train on your code unless you choose to connect your codebase. When connecting your codebase to TabNine, your code never leaves your environment and remains completely private. Overall, it is designed to boost developer productivity and improve code quality by automating repetitive coding tasks. This is possible due to various features that TabNine...
Source: softteco.com
6 GitHub Copilot Alternatives You Should Know
Tabnine is an AI-powered code completion tool that enhances the efficiency of software development. It integrates with a wide range of Integrated Development Environments (IDEs) such as Visual Studio Code, IntelliJ IDEA, and more. Tabnine’s primary feature is its code completion capabilities, which are powered by machine learning algorithms. It analyzes the code you’re...
Source: swimm.io
Top 31 ChatGPT alternatives that will blow your mind in 2023 (Free & Paid)
Tabnine strictly adheres to open-source licensing and keeps your code from any potential plagiarism or copyright infringement. With Tabnine Pro, you can further customize your experience with a private AI model that can be trained to fit your personal coding style and patterns.
Source: writesonic.com

Social recommendations and mentions

Based on our record, Codex by OpenAI seems to be a lot more popular than Tabnine. While we know about 72 links to Codex by OpenAI, we've tracked only 3 mentions of Tabnine. 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.

Codex by OpenAI mentions (72)

  • OpenAI o3 and o4-mini – OpenAI
    The big step function here seems to be RL on tool calling. Claude 3.7/3.5 are the only models that seem to be able to handle "pure agent" usecases well (agent in a loop, not in an agentic workflow scaffold[0]). OpenAI has made a bet on reasoning models as the core to a purely agentic loop, but it hasn't worked particularly well yet (in my own tests, though folks have hacked a Claude Code workaround[1]). o3-mini... - Source: Hacker News / 17 days ago
  • AI Agents — A Software Engineer’s Overview
    Fine-tuning based learning (pre-trained optimization). For example, a language model (e.g., OpenAI Codex) fine-tuned for the software development tasks. - Source: dev.to / 4 months ago
  • Codestral: Mistral's Code Model
    > there's no CodeGPT, its just GPT4 Codex[1] is OpenAI's CodeGPT. It's what powers GitHub Copilot and it is very good but not publicly accessible. Maybe they don't want something else to outcompete Copilot. [1] https://openai.com/index/openai-codex/. - Source: Hacker News / 11 months ago
  • Klarna AI assistant handles two-thirds of customer service chats in first month
    > it would need some human touch but most of the work will be done already By that very loose standard, the matter of time is 2 years 6 months 18 days ago — August 10, 2021 was OpenAI's blog post about the Codex model, with a chat interface producing functional JavaScript: https://openai.com/blog/openai-codex Right now, what I see coming out of these tools (and what I see in the jobs market) gives me the... - Source: Hacker News / about 1 year ago
  • Seriously How Far Are We Before We Just Prompt An AI In Any OS to Complete Any Task?
    - Then there's this live demo of OpenAI's Codex but it's not an AI OS like the pin. It does something much better... It creates a script based on what you voice command it to do. So it basically translates that whatever you want into the code to execute that what you said. > However... "As of March 2023, the Codex Models are now deprecated. Please check out our newer Chat models which are able to do many... Source: over 1 year ago
View more

Tabnine mentions (3)

  • 5 Free AI Coding Copilots to Help You Fly Out of the Dev Blackhole
    This is the repository for the backend of TabNine, the all-language autocompleter There are no source files here because the backend is closed source. - Source: dev.to / 11 months ago
  • The Complete API Security Checklist
    As applications grow in value to the end user so do they grow in complexity. Developers are pressured to increase productivity. Startups like Tabnine and Raycast have had impressive funding rounds recently, indicating how important developer productivity has become. With this pressure to perform, developers don't have the time to test each API connection for vulnerabilities or perform periodical penetration... - Source: dev.to / over 3 years ago
  • 42 Companies using Rust in production
    We also use rust to build Tabnine! (see https://tabnine.com). Source: about 4 years ago

What are some alternatives?

When comparing Codex by OpenAI and Tabnine, 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.

Kite - Kite helps you write code faster by bringing the web's programming knowledge into your editor.

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

Visual Studio IntelliCode - Visual Studio IntelliCode is an experimental set of AI-assisted development capabilities for next-generation developer productivity.

OpenAI - GPT-3 access without the wait

Fynix.ai - Fynix accelerates your software development with real-time AI assistance, automated code reviews, and tools for documentation, diagram creation, and system reliability.