CodeWhisperer Demo

Artificial Intelligence & MLOps

Amazon CodeWhisperer can enhance your productivity as a software engineer by accelerating productivity, improving confidence in your code and enhancing security. Join Caylent’s Randall Hunt and Mark Olson as they guide you through a demo, demonstrating CodeWhisperer’s capability to accelerate a developer’s ability to deliver code.

Amazon CodeWhisperer is an AI coding assistant and code generator. Within a set of languages, you can instruct CodeWhisperer to generate the rest of the method based on the doc string or method header you've provided by leveraging transformers to predict what comes next. This is a significant efficiency gain as a developer because it's like doing a math test with a calculator, you don't have to do the arithmetic anymore. All you need to know is, where things go, similar to putting together pieces of legos.

To show you the capabilities of CodeWhisperer, let’s run through a quick demo where we will upload a file to S3, and create a method around that.

Using Python, first input - import boto3

CodeWhisperer provides completions as it thinks that we might be in a Lambda function, even though we’re not. 

Then we will input - create an S3 client 

CodeWhisperer will complete that for you. In this case, instead of creating a bucket, let’s use an existing bucket instead. So we will input - make a method that uploads a file to S3

Now that the file has been uploaded, we can continue by starting to type and CodeWhisperer will predict and autocomplete the input before we finish typing.

CodeWhisperer will offer you multiple suggestions to choose from. 

And you can even have it do more complicated things, for instance let’s ask it to - make a method that uploads a file to S3 with KMS keys.

While this is a relatively straightforward and common example, a key takeaway for developers and their leadership should be the power CodeWhisperer has to increase the time spent in flow state. Using CodeWhisperer as an assistant allows developers to focus on business logic rather than remembering the precise method signature of an AWS service API that you may only need once or twice, avoiding context switching to Google, Bing, Stack Overflow, or API documentation.

One of the things that separates CodeWhisperer from other AI code generators is that it will point you to different reference materials. So as you cycle through various suggestions, it not only presents objects but also indicates the sources of its material. This feature enhances the security of your code usage by offering clear insights into its origin and references.

CodeWhisperer can also show surprising semantic awareness in its choice of function name. Given a standard Python Inventory class and the request to generate a function to return items costing more than $10 it generated a function called "find_expensive_items". When asked for items less than $10 it generated "find_cheap_items". This is a level of semantic awareness that sets the tool apart.


CodeWhisperer is free by default, but there is a paid professional version that costs $19 per user a month that allows users to set organizational policies. However, the free version also supports various programming languages, allowing users to put together the different sub components of a method, function, or program and CodeWhisperer will generate those on your behalf.


CodeWhisperer will be able to accelerate a developer’s ability to deliver code through the use of shortcuts, but the understanding of what good software design looks like still relies on the practitioner. 

CodeWhisperer is constantly evolving and improving so the CodeWhisperer that we're using today could be 10 times better two years from now.

Next Steps

Are you exploring ways to take advantage of Analytical or Generative AI in your organization? Partnered with AWS, Caylent's data engineers have been implementing AI solutions extensively and are also helping businesses develop AI strategies that will generate real ROI. For some examples, take a look at our Generative AI offerings.

Accelerate your GenAI initiatives

Leveraging our deep experience and patterns

Browse GenAI Offerings

Related Blog Posts

Driving Organizational Evolution with AI: How We Invest in Internal Generative AI Training

GenAI literacy is a key new pillar of modern literacy, and evolution across the organization is strategically important to thriving with AI. Learn how we approach GenAI enablement and innovation at Caylent.

Artificial Intelligence & MLOps

Improving Sales Automation with GenAI: Introducing IRIS

Introducing IRIS: our Integrated Revenue Intelligence System. It revolutionizes daily business operations with GenAI shortcuts, empowering custom automation solutions for enhanced productivity, sales effectiveness, and agility.

Artificial Intelligence & MLOps

Caylent Announces New AI Innovation Engine, Accelerating Customer Generative AI Initiatives into Production

Artificial Intelligence & MLOps