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Jay @ Designly
Jay @ Designly

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GitHub Copilot vs CodeWhisperer: The Verdict

In the rapidly evolving world of software development, staying up-to-date with the latest tools and technologies is not just an advantage - it's a necessity. One of the most groundbreaking advancements in recent years is the introduction of AI-powered code generators that offer real-time coding assistance, aiming to enhance developers' productivity and workflow. Two heavyweights in this arena are AWS's CodeWhisperer and GitHub's Copilot.

However, the burning question for every developer is, "Which tool is better suited for my coding needs?" For the past two months, I've extensively used both these tools, immersing myself in their features, evaluating their effectiveness, and noting down their quirks and nuances. Now, after this intensive period of hands-on experience, I believe I have a clear answer to that question.

In this blog post, I'll take you through my journey, share my insights, and finally, reveal the winner in the showdown between GitHub Copilot and AWS CodeWhisperer. Whether you're a seasoned developer or a novice, my hope is that this comparison will guide you in selecting the tool that will boost your productivity and transform your coding experience. Let's dive in.


AWS CodeWhisperer, like other AWS services, offers a Free Tier, which could lead one to believe that the service is entirely free. This perception is often propagated by some blog articles and YouTube videos. However, it's critical to understand that "Free Tier" does not translate to "completely free."

The Free Tier from AWS is essentially a limited package that allows users to use certain services up to a specified usage limit. Once you exceed this limit, the cost starts to accumulate, and it does so quite rapidly.

I experienced this first-hand when, half-way through my Free Tier month, I found myself with an unexpected bill of over $12. The cost that seemed non-existent at first quickly turned into an unexpected expense, catching me off-guard.

Monthly cost of AWS CodeWhisperer

On the other hand, GitHub Copilot presents a more straightforward pricing model. For individual users, it costs $10 per month - a flat fee. There are no hidden charges or unexpected fees that kick in once you cross a certain usage limit.

This pricing model brings with it a sense of assurance and predictability. You know right from the start how much you'll be paying at the end of the month, and there are no unpleasant surprises.

Key Differences

Pricing aside, what are the AI capabilities of these two powerful tools. Both CodeWhisperer and Copilot employ sophisticated AI algorithms that help generate code based on your requirements and existing code context. The common goal is to streamline and expedite the development process.

However, the two systems differ in their nuances and specialized capabilities.

CodeWhisperer integrates seamlessly into popular IDEs, and it goes the extra mile in terms of security. It does not only offer real-time code suggestions for 15 popular languages but also flags and filters code resembling open-source training data. This additional layer of transparency aids in avoiding licensing issues. Furthermore, CodeWhisperer scans your code for potential security vulnerabilities - a feature that can be invaluable in today's cybersecurity landscape.

Conversely, GitHub Copilot, powered by OpenAI Codex, also delivers real-time coding assistance, and is capable of understanding a wide range of languages due to its training on publicly accessible code. It integrates into several editors, making it a versatile tool for developers. However, its security features and open-source code reference capabilities do not match those of CodeWhisperer.

Why I Chose Copilot

In the final analysis, the utility and value derived from any tool, be it in software development or otherwise, can often be measured by its impact on efficiency and productivity. If AWS CodeWhisperer had been able to significantly supercharge my daily workflow, enabling me to code faster and more accurately, I would have been more than willing to allocate a higher budget to it. I would've seen it as an investment that pays off in saved time and heightened productivity. A cost of $50, $100, or even more per month would have been justifiable in the face of a sizable return on investment. However, in my personal experience, that level of efficiency enhancement simply did not materialize with CodeWhisperer.

One of the primary factors that influenced my preference for GitHub Copilot was its superior predictive capabilities. It exhibited an uncanny knack for comprehending my coding intentions, outperforming CodeWhisperer in this regard. This was evident in the way it provided code suggestions that aligned more closely with my objectives.

This predictive excellence was particularly noticeable when I led my coding with a detailed comment or created a descriptive function or method name. In such instances, Copilot would generate code that was almost always in sync with what I intended to write. This degree of accuracy reduced the amount of time I spent coding and debugging, boosting my overall productivity.

Moreover, the intuitive nature of Copilot was a big plus, requiring less time to 'train' the AI to understand my coding style and requirements. This intuitive grasp of the programmer's intent is one of the defining features of a superior coding assistant, and it's an area where Copilot truly shone.

The Verdict

The landscape of software development is constantly changing, and tools like AWS CodeWhisperer and GitHub Copilot are leading the way in this evolution. Both offer a revolutionary approach to coding, providing real-time, AI-powered coding assistance that can potentially transform your workflow and boost your productivity.

However, as my journey with these tools revealed, not all coding assistants are created equal. While both services have their unique strengths and offer significant benefits, my experience has shown that GitHub Copilot comes out on top for its pricing transparency, superior predictive abilities, and a wider range of language support.

But remember, every developer's needs are unique, and what works best for one might not be the ideal choice for another. So, I'd recommend giving both tools a try to see which one resonates more with your coding style and requirements.

The most important takeaway from this comparison is the immense potential of AI-powered coding assistance. Regardless of whether you choose AWS CodeWhisperer or GitHub Copilot, embracing this advanced technology is a step towards more efficient, enjoyable, and future-ready coding.

The future of software development is here. It's time to embrace it and let AI revolutionize the way you code.

Thank you for taking the time to read my article and I hope you found it useful (or at the very least, mildly entertaining). For more great information about web dev, systems administration and cloud computing, please read the Designly Blog. Also, please leave your comments! I love to hear thoughts from my readers.

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