Amazon CodeWhisperer vs What the Diff
A detailed comparison to help you choose between Amazon CodeWhisperer and What the Diff.
 Amazon CodeWhisperer AI coding companion by AWS | What the Diff AI code review summaries for GitHub PRs | |
|---|---|---|
| Rating | 3.6 (330 reviews) | 4.9 (186 reviews) |
| Pricing Model | freemium | freemium |
| Starting Price | Free tier available | Free tier available |
| Best For | AWS developers wanting free AI code assistance with security scanning | Engineering teams wanting AI to summarize PRs for faster code review |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tierapi access | free tierteam features |
| Visit Amazon CodeWhisperer → | Visit What the Diff → |
Amazon CodeWhisperer
Pros
- + Free individual tier
- + AWS service awareness
- + Security vulnerability scanning
Cons
- - Best for AWS users only
- - Less capable than Cursor for general code
What the Diff
Pros
- + Automatic PR summaries
- + Saves review context-setting time
- + Easy GitHub integration
Cons
- - Summary only — no deep review
- - Limited to GitHub
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