Amazon CodeWhisperer Review: AWS's Coding Assistant
TL;DR: CodeWhisperer is a strong coding assistant for teams that live inside AWS. The service integration, built-in security scanning, and free individual tier are the draw. For work outside AWS, GitHub Copilot or Cursor tend to do a better job. One important caveat up front: Amazon retired the CodeWhisperer name in April 2024 and folded it into Amazon Q Developer, so if you go looking for "CodeWhisperer" today, that is where you will land.
A quick note before the review proper. If you are an Australian business shopping for an AI coding tool right now and you type "CodeWhisperer" into Google, you will not find a product page by that name. Amazon renamed the assistant to Amazon Q Developer on 30 April 2024, and the features all moved across with it. So when this review talks about CodeWhisperer, read it as the assistant that now ships under the Amazon Q Developer banner.
With that out of the way, here is the practical question for most teams: is Amazon's coding assistant worth pointing your developers at? The short answer is that it depends almost entirely on how much of your stack runs on AWS. If your engineers spend their days writing Lambda functions, wiring up S3 and DynamoDB, and arguing with IAM policies, this tool was built for exactly that life. If they are mostly writing general-purpose application code, the picture is more even, and the bigger names are competitive or better.
The stakes are simple. AI coding assistants are now a line item, not a novelty. Picking the one that matches your stack saves real hours every week. Picking the wrong one means paying for suggestions your team quietly stops trusting. So the test below is less "which tool is best" and more "which tool is best for what you actually build."
What Is CodeWhisperer?
CodeWhisperer is Amazon's AI coding assistant. Here is what it does:
- Code completion, inline suggestions as you type
- AWS integration, knows the AWS services well
- Security scanning, flags vulnerabilities while you work
- Reference tracking, flags generated code that resembles its open-source training data, with the repo URL and licence
- IDE support, VS Code, JetBrains, and AWS Cloud9
- Free tier, individual developers can use it at no cost
Price: Free (individual) | Professional $19/mo
AWS Integration
This is where the tool earns its keep. Ask it for something AWS-shaped:
"Create a Lambda function that processes S3 events and writes to DynamoDB"
It came back with the right imports, sensible IAM permissions, error handling, and a CloudFormation template, all in one go. That is the kind of boilerplate that normally eats half an hour of tab-switching between docs.
We ran our own check across 20 AWS service combinations. By our count, CodeWhisperer handled 18 of 20 correctly, against 12 for Copilot and 14 for Cursor. To be clear, this was an informal in-house test with no published methodology, so treat the numbers as directional rather than gospel. The pattern matches what you would expect, though: the assistant built by AWS knows AWS best.
Security Scanning
CodeWhisperer scans your code for:
- OWASP Top 10 vulnerabilities
- Hardcoded credentials
- Injection flaws
- Insecure dependencies
- AWS-specific misconfigurations
Test: We planted 10 vulnerabilities on purpose. CodeWhisperer flagged 7 of them. SonarQube flagged 8 but needed its own CI pipeline to do it. This was our own ad-hoc test rather than a benchmarked dataset, so read the catch rates as a rough guide, not a leaderboard. The takeaway holds either way: getting most of your security feedback inside the editor, with nothing extra to stand up, is a genuine convenience.
Pros and Cons
| Pros | Cons |
|---|---|
| Best for AWS development | Weak outside AWS ecosystem |
| Free individual tier | Professional tier is expensive |
| Built-in security scanning | Slower than Cursor/Copilot |
| Reference tracking | Fewer IDE integrations |
| Good documentation | Less accurate for non-cloud code |
Verdict
Score: 7.9/10 (our own editorial rating)
CodeWhisperer is a specialist, and that is meant as a compliment. If your team builds on AWS every day, the service knowledge pays for itself in saved lookups. For general development, Copilot and Cursor give you better completions. The free individual tier means there is almost no reason for an AWS developer not to try it. Just remember to look for it under its current name, Amazon Q Developer.
*Published June 22, 2026 | CodeWhisperer tested with VS Code extension*