Checkmarx Fusion
Most scanners force a choice: find more vulnerabilities and deal with more noise, or risk missing what matters.
Checkmarx Fusion adds frontier-model reasoning to established security analysis to uncover additional vulnerabilities and deliver higher-fidelity findings.
More Fidelity. Less Noise. Most Comprehensive. Built to Cover Everything.
Checkmarx Fusion pairs established application-security analysis with frontier reasoning to help teams find more real vulnerabilities without losing control of findings quality or cost.
Find the Unfindable
Fusion brings frontier-model reasoning to Checkmarx security analysis to uncover additional vulnerabilities, including complex patterns that rules alone may miss. Fusion SAST applies this approach to source code today.
Choose Your Coverage Level
Turn Checkmarx Fusion on or off at the global level. Teams that need the highest fidelity enable it; teams on standard scanning are unaffected. One setting, no workflow disruption.
Multiple Scanners. One Workflow.
Run Checkmarx Fusion alongside other Checkmarx One scanners including SCA, IaC Security and API Security, in the same scan workflow. Fusion brings frontier AI reasoning to SAST today. Results remain connected in Checkmarx One for investigation and follow up, including triage and remediation.
View Results in ASPM
Fusion findings flow into Checkmarx One, where Risk Orchestration adds application, ownership and policy context. Checkmarx Triage Assist helps assess attackability for eligible findings, while Checkmarx Remediation Assist provides proposed fixes for developer review.
No New Pipeline. No Separate Scanner.
Connect your GitHub, GitLab, Azure, or Bitbucket repository and scan. Frontier analysis fits into the same source-to-scan workflow your team already runs. Add deeper analysis without creating a second security process to deploy, staff, or reconcile.
Checkmarx Fusion SAST is part of the
Claude Marketplace
Checkmarx is a proud member
of Cyber Verification Program
The Scanner Trade-Off Ends Here
More of the risk that’s real. Less of what isn’t. And an architecture that doesn’t make you trade one for the other.
Rules-based analysis can miss vulnerabilities in unfamiliar frameworks and complex code patterns. AI-assisted development makes those gaps harder to manage.
Coverage that keeps pace with AI
Fusion adds frontier-model reasoning alongside established analysis to uncover additional vulnerabilities across the codebase, including code already covered by rules.
The window between disclosure and exploitation has collapsed.
No grace period, no gaps
Anthropic’s own research found a working exploit generated within an hour of a patch shipping. A missed vulnerability isn’t a near-miss anymore. It’s an active risk. Detection has to be faster than attackers.
Standalone AI scanning burns through tokens at enterprise-killing costs and still can’t guarantee the same answer twice.
Consistent results at a predictable cost
Fusion brings selected frontier-model analysis into the established security workflow, with findings evaluated and consolidated. Security teams get consistent results at a predictable and optimized cost, not a token bill that compounds across every commit.
More Signal. Less Noise.
0.74 F1 in Fusion SAST. Three times the query-based baseline.
F1 measures precision and recall in a single score.
What Checkmarx Fusion Gets You
Broader vulnerability detection, less noise to investigate and findings connected to Checkmarx One.
Best of Both Worlds
Deterministic precision and AI coverage, not a compromise between them. Full strength from both, in one verified result.
The Same Answer Every Time
Scan it twice, get the same result. Standalone AI scanning can’t promise that. Checkmarx Fusion can.
Fewer False Positives
The Findings Analysis Engine strips noise before it reaches your team. Real findings, not alert triage.
Built for Enterprise Scale
Run Fusion within Checkmarx One’s existing project and scan workflows, with results managed alongside other application-security findings.
Predictable Cost
A bounded, curated set of Checkmarx-validated models. Higher or lower cost. You choose. Consistent results at a cost that doesn’t compound. The audit trail does.
The Full Platform Picture
Findings flow into Checkmarx One, where Risk Orchestration prioritizes by business risk, Triage Assist routes for action, and Remediation Assist turns findings into merge-ready fixes. One platform, nothing siloed.
Watch how Checkmarx Fusion catches what rules-based scanning and single-model AI miss, in one verified result.
Related Resources
Solution Brief
Checkmarx Fusion: Hybrid SAST for Higher Detection Accuracy
Security teams shouldn’t have to choose between a scanner that finds everything and one they can act on. Checkmarx Fusion™ combines deterministic and AI-based detection in a single architecture, reconciled…
Learn More
Infographic
The AppSec Paradox: Why Organizations That Feel Secure Are Getting Breached
Learn More
Blog
Your Scanner’s Accuracy Claims Are Only Half the Story
Learn More
Solution Brief
Checkmarx SAST: AI-Powered Static Code Security Testing
Learn More
Analyst Report
The Forrester Wave™: Static Application Security Testing Solutions, Q3 2025
Learn More
Analyst Report
The 2025 Gartner® Magic Quadrant™ for Application Security Testing
Learn More
Blog
What Is Checkmarx Fusion?
Learn More
Why the World’s Top Teams Choose Checkmarx
“Checkmarx identified false positives and also gave developers the opportunity for human review. It was exactly what we wanted.”Read Full Case Study
“Traditional SAST has always carried a tradeoff: deep analysis, but high false positives. With massive amounts of code now being generated by AI, AppSec professionals need efficiency at scale and high-fidelity results. A hybrid approach that combines rules-based precision with AI-powered reasoning could change the game for teams where alert fatigue and AI costs have become bottlenecks.”
“With AI generating unprecedented amounts of code, security has to be an enabler, not a bottleneck. This hybrid approach combining rules-based precision with AI-powered reasoning gives AppSec teams a way to scale while delivering high-fidelity performance. The industry finally has an approach built for what AI demands.”
“By far the best AppSec tooling decision we have made”
“Checkmarx gave us a 90% reduction in vulnerabilities in just a few months.”
“Unifying our AppSec tools with Checkmarx gave us a single source of truth.”
“With 2.1B lines of code scanned monthly, Checkmarx gives us the scale and speed we need.”
“Checkmarx fits seamlessly into our DevOps pipelines—it’s a truly scalable solution.”
“From a buyer perspective, Checkmarx’s approach offers a structured and role-aware entry point into agentic security. ”
“Incorporating Checkmarx’s technology has revolutionized our development culture.”
“Checkmarx One made our security team and developers life easier.”
“The success of our AppSec program can be directly attributed to the tooling, processes and support provided by the Checkmarx managed services.”
“Bringing ASPM context directly into the IDE reflects a forward-looking approach to prioritizing security efforts based on risk earlier in the development process.”
Frequently Asked Questions
Checkmarx Fusion is Checkmarx’s highest-fidelity scanning architecture. Depending on the language, either a rules-based engine or an AI-based engine runs first. Checkmarx Fusion then adds several curated frontier AI models on top. The Findings Analysis Engine combines all of those results and removes false positives. Findings are then deduplicated into one clean, verified output. This results in the most comprehensive and highest-fidelity dataset available from any scanning approach.
Fusion adds frontier-model reasoning alongside established detection to uncover vulnerabilities that existing analysis may miss. Findings are evaluated and consolidated in Checkmarx One.
Fusion SAST is available today. The architecture is designed to extend to additional scan types. Availability will be announced as those capabilities launch.
F1 combines precision (how many reported findings are real) and recall (how many actual vulnerabilities are detected) into one measure. Checkmarx Fusion SAST achieved 0.74 F1, finding what matters without burying teams in noise. The industry average for query-based SAST is around 0.20.
No. Checkmarx Fusion runs in CI/CD and pull request workflows. Developer Assist handles real-time, in-IDE security feedback separately.
Configure Fusion in the Checkmarx One scan workflow. Select a supported frontier model and review the available Checkmarx Credits balance and model rate before scanning.
Checkmarx Fusion is available on Checkmarx One. It is not available on on-premises SAST tools.
Frontier models can help identify vulnerabilities that established analysis may miss, but using them alone leaves teams to manage results, costs and integration. Fusion combines frontier reasoning with Checkmarx security analysis and findings management in Checkmarx One.
Yes. Fusion SAST analyzes source code whether written by developers or AI coding assistants. Frontier reasoning complements the established security analysis to help uncover additional vulnerabilities.
Fusion uses findings evaluation and deduplication to reduce false-positive noise and overlapping results. Triage Assist is a separate Checkmarx capability that can evaluate attackability for eligible findings.
Find What Your Current Scanner Is Missing
See it running on real code. Find the vulnerabilities your current tool doesn’t catch.
Thank You!
Your Custom Checkmarx Demo Request was Successfully Sent!
Personalized Demo
Find Critical Vulnerabilities in Your Code
Best of Both Worlds
Deterministic precision and AI coverage, not a compromise between them. Full strength from both approaches.
One Result Set
No manual correlation across tools or scan types. One clean verified result, scored in Checkmarx One ASPM.
0.74 F1 in SAST
More than three times the query-based SAST average: more of the risk that matters, fewer false alarms to chase.
Predictable Cost
Choose a supported model and see its Checkmarx Credits rate before scanning.