aislop vs Semgrep: Which is Better in 2026?
Choosing between aislop and Semgrep comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
aislop
Deterministic quality gate for AI-written code
Best for you if:
- • CLI is MIT and free: npx aislop scan, then CI as a quality gate.
- • Deterministic engines, not an LLM reviewer. Works with advanced models.
Semgrep
Static analysis for finding bugs
Best for you if:
- • Semgrep is a code analysis tool for finding bugs and enforcing standards
- • It scans code with lightweight pattern matching for security and quality
| At a Glance |  aislop |  Semgrep |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Developer Tools | Developer Tools |
Rating | - | 4.6/5 |
Free plan | Yes | Yes |
Choose aislop or Semgrep?
Choose aislop if
Deterministic quality gate for AI-written code
- Free local CLI, no account
- Deterministic: same repo, same score
- Hands leftover issues to 14 coding agents
Choose Semgrep if
Static analysis for finding bugs
- Code analysis tool
- Good pattern matching
- Multi-language
| Feature | aislop | Semgrep |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | No ratings yet | ★4.6/5 56 reviews |
| Categories | Developer ToolsTesting & QA | Developer ToolsSecurity |
In-Depth Analysis
aislop
Deterministic quality gate for AI-written code
Run the free CLI first.
Watch out
Threshold rollout on old code.
Strengths
- +Free local CLI, no account
- +Deterministic: same repo, same score
- +Hands leftover issues to 14 coding agents
- +GitHub Action for PR gates
Weaknesses
- -Hosted platform has no public price
- -A low score can be noisy on legacy repos. Roll the threshold in.
- -Not a replacement for a human security review
- -Telemetry is on by default. Opt out with AISLOP_NO_TELEMETRY=1
Key features
Semgrep
Static analysis for finding bugs
Semgrep offers a genuinely useful free tier (10 contributors, 50 repos) that covers most small teams.
Watch out
Modules are priced separately ($30 each for SAST and SCA, $15 for Secrets)
Strengths
- +Code analysis tool
- +Good pattern matching
- +Multi-language
- +Active development
- +Good for security
Weaknesses
- -Learning curve
- -Enterprise features paid
- -False positives
- -Configuration needed
- -Resource usage
Key features
Pricing: aislop vs Semgrep
| Plan | aislop | Semgrep |
|---|---|---|
| Tier 1 | Free CLI (open source) | Free Community |
| Tier 2 | custom Hosted platform | $40 Teams |
| Tier 3 | N/A | Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on aislop pricing and Semgrep pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: aislop
Want the highest-rated option?
Semgrep is rated 4.6/5. aislop has no ratings yet.
Go with: Semgrep
Value user reviews?
aislop: no ratings yet. Semgrep: 56 reviews (4.6/5).
Go with: Semgrep
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are developer tools tools. Compare their specific features to decide.
How important are ratings?
Semgrep is rated 4.6/5; aislop has no ratings yet.
Key Takeaways
Semgrep
- Free tier available
- Our pick for this comparison
aislop
- Choose if you want deterministic quality gate for AI-written code
The Bottom Line
Semgrep is our pick.
Frequently Asked Questions
Is aislop or Semgrep better?
Semgrep is rated in our evaluation. Both are freemium.
What are aislop and Semgrep used for?
aislop: Deterministic quality gate for AI-written code. Semgrep: Static analysis for finding bugs.
What does aislop cost vs Semgrep?
aislop is freemium (free tier + paid plans). Semgrep is freemium (free tier + paid plans). Visit their websites for detailed pricing.