Nullify AI vs RunSybil (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: RunSybil does not list a price
Free plan
Tie
Neither has one
Higher rating
RunSybil
4.0 against 4.1
Same job?
Yes
Both are Security & Compliance AI tools

Side by side

Compared on	Nullify AI	RunSybil
Our rating	4.0	4.1Better
Starts at	$67/mo	Not listed
Free plan	No	No
Category	Security & Compliance AI	Security & Compliance AI
Plans	From $67/mo	See pricing
Key features	Autonomous vulnerability detection, triage, and merge-ready autofix pull requests Direct GitHub and Slack integration for repository assessment Unlimited repositories and users on the Pro tier rather than seat-based limits Pull-request-level review built into existing developer workflows Enterprise tier with SSO and advanced integration support	Autonomous offensive testing rather than passive scanning Establishes exploitability rather than listing theoretical findings Noise elimination so teams triage less Runs continuously at development pace Remediation support at enterprise scale
Pros	Moves past detection-only scanning by opening autofix pull requests directly Unlimited repositories and users on Pro avoids per-seat cost creep as teams grow Backed by recognized security and deep-tech investors (Two Sigma Ventures, Root Ventures)	Exploitability turns a backlog into an actionable priority list Continuous testing fits how software actually ships Directly reduces triage burden on security teams
Cons	No free tier, so evaluating the product means committing to the $800/year Pro plan Autonomous autofix still needs review before merge on higher-risk codebases Founded in 2022, with a shorter track record than legacy AppSec vendors	Offensive testing requires careful scoping and authorisation Enterprise pricing not published
Company	Nullify, founded 2022

Prices come from each vendor's pricing page, last checked 20260731. Check the vendor before you buy.

FAQ

Questions people ask

Is Nullify AI better than RunSybil?

In our reviews Nullify AI scores 4.0 and RunSybil scores 4.1. The better pick depends on the job. Nullify AI: Autonomous AI agent that finds, prioritizes, and fixes code vulnerabilities. RunSybil: Autonomous offensive security that finds exploitable vulnerabilities at development speed.

Which is cheaper, Nullify AI or RunSybil?

Nullify AI: from $67/mo. RunSybil: see pricing.

Do Nullify AI and RunSybil have free plans?

Neither lists a free plan.

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