Compare the Top AI Coding Agents as of September 2025

What are AI Coding Agents?

AI coding agents are software tools powered by artificial intelligence designed to assist or fully automate the process of writing, reviewing, and optimizing code. These tools can generate code snippets, suggest improvements, debug errors, and even refactor entire codebases based on user input or project requirements. By leveraging machine learning and natural language processing, AI coding agents can understand and interpret programming languages, offering context-aware code suggestions that speed up development and reduce errors. They often integrate with popular Integrated Development Environments (IDEs) or version control systems, making them a seamless part of the developer's workflow. AI coding agents are especially useful in boosting productivity, assisting with repetitive tasks, and providing coding solutions for developers at all skill levels. Compare and read user reviews of the best AI Coding Agents currently available using the table below. This list is updated regularly.

  • 1
    Windsurf Editor
    The Windsurf Editor is a free AI-powered IDE and AI coding assistant that accelerates development by providing intelligent code generation and agents in over 70 programming languages and more than 40 IDEs, including VSCode, JetBrains, and Jupyter Notebooks. With Windsurf, developers can write code faster, eliminate repetitive tasks, and stay in the flow state—whether they're working with Python, JavaScript, C++, or any other language. Built on billions of lines of open-source code, Windsurf Editor understands and anticipates your coding needs, offering multiline suggestions, automated unit tests, and even natural language explanations for complex functions. It’s perfect for streamlining code writing, reducing boilerplate, and cutting down the time spent on documentation searches. Trusted by individual developers and Fortune 500 companies alike, Windsurf Editor is your go-to solution for boosting productivity and writing better code. Try Windsurf for free today!
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    Starting Price: Free
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  • 2
    CodeGPT

    CodeGPT

    CodeGPT

    Discover the AI Pair Programming extension for VSCode, Create your own AI Copilots with the Playground and Unleash new AI Apps with the API. Unlock the Power of Your Own AI Agents: Integrate Personalized Context and Knowledge Across all Coding Languages. Easily Train Your AI Copilot with Your Own Files on the Playground. Create and Share a Copilot in Just 5 Minutes, or Achieve Custom AI Copilot Solutions Seamlessly Through the API A always free extension for VS Code that boost coding abilities using chat assistant and code completion. Simply download the extension, add your own API key and start AI-coding for free. Enhanced solution that allows AI agents creation with specific context information, so you can design your own AI copilots and integrate it wherever you want! API connection to develop AI-powered apps effortlessly handling all the complexities of fine-tuning LLMs so you can focus on creating without the technical issues.
    Starting Price: Free
  • 3
    GitHub Copilot
    Your AI pair programmer. With GitHub Copilot, get suggestions for whole lines or entire functions right inside your editor. 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. GitHub Copilot is available today as a Visual Studio Code extension. It works wherever Visual Studio Code works — on your machine or in the cloud on GitHub Codespaces. And it’s fast enough to use as you type. GitHub Copilot works with a broad set of frameworks and languages. The technical preview does especially well for Python, JavaScript, TypeScript, Ruby, and Go, but it understands dozens of languages and can help you find your way around almost anything. With GitHub Copilot, you’re always in charge. You can cycle through alternative suggestions. The GitHub Copilot coding agent streamlines development by automating repetitive and time-consuming tasks, allowing developers to focus on more complex coding.
    Starting Price: $10 per month
  • 4
    Cursor

    Cursor

    Anysphere

    The AI-first Code Editor. Cursor is a next-generation AI-powered code editor designed to accelerate software development with powerful, real-time code assistance. The platform integrates seamlessly with your development workflow, offering advanced features such as natural language code editing, auto-completion, and context-aware suggestions. Cursor predicts your next move and adapts to your coding style, making it an indispensable tool for developers. It also supports a wide range of extensions and themes, ensuring familiarity while introducing cutting-edge AI capabilities. Designed to boost productivity, Cursor simplifies debugging and enhances coding efficiency, empowering developers to work smarter, not harder.
    Starting Price: $20 per month
  • 5
    Gemini Code Assist
    Increase software development and delivery velocity using generative AI assistance, with enterprise security and privacy protection. Gemini Code Assist completes your code as you write, and generates whole code blocks or functions on demand. Code assistance is available in many popular IDEs, such as Visual Studio Code, JetBrains IDEs (IntelliJ, PyCharm, GoLand, WebStorm, and more), Cloud Workstations, Cloud Shell Editor, and supports 20+ programming languages, including Java, JavaScript, Python, C, C++, Go, PHP, and SQL. Through a natural language chat interface, you can quickly chat with Gemini Code Assist to get answers to your coding questions, or receive guidance on coding best practices. Chat is available in all supported IDEs. Enterprises can customize Gemini Code Assist using their organization’s private codebases and knowledge sources so that Gemini Code Assist can offer more tailored assistance. Gemini Code Assist enables large-scale changes to entire codebases.
    Starting Price: Free
  • 6
    Cody

    Cody

    Sourcegraph

    Cody, Sourcegraph’s AI code assistant goes beyond individual dev productivity, helping enterprises achieve consistency and quality at scale with AI. Unlike traditional coding assistants, Cody understands the entire codebase, enabling deeper contextual awareness for smarter autocompletions, refactoring, and AI-driven code suggestions. It integrates with IDEs like VS Code, Visual Studio, Eclipse, and JetBrains, providing inline editing and chat without disrupting workflows. Cody also connects with tools like Notion, Linear, and Prometheus to enhance development context. Powered by advanced LLMs like Claude Sonnet 4 and GPT-4o, it optimizes speed and performance based on enterprise needs, and is always adding the latest AI models. Developers report significant efficiency gains, with some saving up to six hours per week and doubling their coding speed.
    Starting Price: $59
  • 7
    Cosine Genie
    Whether it’s high-level or nuanced, Cosine can understand and provide superhuman level answers. We're not just an LLM wrapper – we combine multiple heuristics including static analysis, semantic search and others. Simply ask Cosine how to add a new feature or modify existing code and we’ll generate a step by step guide. Cosine indexes and understands your codebase on multiple levels. From a graph relationship between files and functions to a deep semantic understanding of the code, Cosine can answer any question you have about your codebase. Genie is the best AI software engineer in the world by far - achieving a 30% eval score on the industry standard benchmark SWE-Bench. Genie is able to solve bugs, build features, refactor code, and everything in between either fully autonomously or paired with the user, like working with a colleague, not just a copilot.
    Starting Price: $20/month
  • 8
    Replit Agent
    Create beautiful, modern web applications at the speed of thought. Describe what you need and Replit's AI Agent builds it for you. Meet Replit Agent, an advanced AI making programming accessible to everyone. Build at the speed of thought and launch in minutes. Prompt Replit Agent by describing the app or site you want to create. Replit AI can even help you enhance your prompt for the best results. Replit Agent generates a plan for bringing your idea to life. Start with a prototype, and add extra features as you go by writing simple prompts. Refine your creation through an easy-to-use chat interface. After every step of your build plan, the agent will ask for feedback and integrate your requests into the next batch of work. Deployment your site or app to to a live URL in minutes. Backed by Google Cloud, Replit Deployments let you build your startup, automate your job, grow your following, and more — faster than ever before.
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