kitio.aiChecksum vs Shortest
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Checksum starts at See pricing page and Shortest starts at $10/mo. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Generated Playwright tests
- Self-healing tests
- API test agent
- CI integration
- Human-verified delivery
- Plain-English tests
- Playwright-based
- GitHub integration
- Automatic test writing
- Test fixing
| Feature | Checksum | Shortest |
|---|---|---|
| Best for | AI agents that write and repair Playwright and API tests for you | Write end-to-end tests in plain English and let AI run them |
| Category | Coding | Coding |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | $10/mo |
| Free plan | No | Yes |
| Made by | Checksum | Antiwork |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Checksum starts at See pricing page and Shortest starts at $10/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Open source
Free
- Plain-English test framework
- Self-run with your own setup
Standard
$10/mo
- Per user
- 14-day free trial
- Automated test writing and fixing
- Unlimited pull requests
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Checksum
- Tests delivered as reviewable pull requests
- Broken tests are repaired automatically
- No per-seat or per-run fees
- No public price list
- Requires a demo to get started
- Focused on Playwright for UI tests
Shortest
- Tests read like instructions
- Uses Playwright underneath
- Unlimited pull requests on paid plan
- Paid plan is priced per user
- Needs a JavaScript or TypeScript project
- Mainly aimed at GitHub-based teams
Which one should you choose?
Choose Checksum if you want:
- Tests delivered as reviewable pull requests
- Broken tests are repaired automatically
- No per-seat or per-run fees
Watch out: no public price list.
Choose Shortest if you want:
- Tests read like instructions
- Uses Playwright underneath
- Unlimited pull requests on paid plan
Watch out: paid plan is priced per user.
Checksum vs Shortest FAQ
What is the difference between Checksum and Shortest?
Checksum: AI agents that write and repair Playwright and API tests for you. Shortest: Write end-to-end tests in plain English and let AI run them. Both are coding tools.
Is Checksum or Shortest cheaper?
Checksum starts at See pricing page and Shortest starts at $10/mo. Check both pricing pages for current plans.
Do Checksum and Shortest have free plans?
Checksum: No. Shortest: Yes.
Who makes Checksum?
Checksum is made by Checksum.
Who makes Shortest?
Shortest is made by Antiwork.
Which should I choose, Checksum or Shortest?
Choose Checksum if you value tests delivered as reviewable pull requests and broken tests are repaired automatically. Choose Shortest if you value tests read like instructions and uses playwright underneath.