Static application security testing · October 2026 Edition
Semgrep vs Checkmarx One
Four of fourteen models named Semgrep first on the direct prompt; zero named Checkmarx One. Both were named by all fourteen models and Semgrep carries 63 labels and Checkmarx One 44, so the shares are not directly comparable.
Named in three categories this edition.
Named in four categories this edition.
First-choice share36%2%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate5%45%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#8A position in a field of 10; printed, not drawn.
Labels6344A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Semgrep reading right to left. Rank and label count are printed, not drawn.Snyk Code was named alongside these two in nine of the fourteen direct answers. Semgrep vs SonarQube · Semgrep vs Snyk Code · Semgrep vs Snyk
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the static application security testing page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
SemgrepFirst choices, of fourteen modelsCheckmarx One
Direct403 against Checkmarx One
Paraphrase416 against Checkmarx One
Comparative431 against Checkmarx One
Budget-constrained90
Scale-constrained102 against Checkmarx One
Negative403 against Semgrep · 8 against Checkmarx One
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Across every category in the October 2026 Edition, Semgrep and Checkmarx One were named in the same answer 125 times, of the 208 answers naming Semgrep and the 270 naming Checkmarx One. In those answers Checkmarx One took the first choice nineteen times and Semgrep forty-two.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Semgrep and Checkmarx One stood in it.
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | ||||
| GPT-5.4 mini | | | ||||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | |||
| Grok 4.1 Fast | | | | | | |
| Mistral Small | | | | | ||
| DeepSeek V4 Flash | | | | | | |
| Llama 4 Maverick | | |||||
| Qwen 3.7 Flash | | | | | | |
| Kimi K2 | | | | | | |
| GLM 4.7 FlashX | | | | | ||
| MiniMax M2.5 | | | | | ||
| GPT-6 Luna | | | | | | |
| Muse Glimmer 30B | | | | | |
Semgrep Checkmarx One first choice named as an alternative argued againstblank: not namedEach cell is one answer, Semgrep on the left and Checkmarx One on the right.The direct prompt
The plain question, one answer per model, grouped by where Semgrep and Checkmarx One stood in it.
Semgrep first, Checkmarx One an alternative
4 of 14 modelsCheckmarx One was named in the answer but not as the choice, or not at all.GPT-5.4 miniSemgrep alternatives: Checkmarx One, Snyk Code, Veracode Static Analysis
Perplexity SonarSemgrep alternatives: Checkmarx One, Snyk Code
Kimi K2Semgrep, Snyk Code alternatives: SonarQube
GPT-6 LunaSemgrep alternatives: GitHub Advanced Security, Snyk
Neither was the first choice, one was named
8 of 14 modelsThe answer put something else first and named one of the two as an alternative.Gemini 3.5 FlashAikido Security alternatives: GitHub Advanced Security, GitLab SAST, Semgrep, Snyk Code
Grok 4.1 FastSnyk Code alternatives: Semgrep, SonarQube
Mistral SmallSnyk alternatives: Aikido Security, Semgrep
DeepSeek V4 FlashSnyk Code alternatives: CodeAnt.ai, Semgrep, SonarQube
Qwen 3.7 FlashSonarQube alternatives: Semgrep, Snyk Code
GLM 4.7 FlashXSonarQube alternatives: Checkmarx One, Codacy, DeepSource, GitHub Advanced Security, OpenText Fortify, Semgrep, Snyk Code, Veracode Static Analysis
MiniMax M2.5Snyk alternatives: Semgrep, Veracode Static Analysis
Muse Glimmer 30BSonarQube alternatives: Semgrep
Neither was named
2 of 14 modelsThe answer made no first choice from these two in this category.Claude Haiku 4.5no first choice
Llama 4 MaverickSnyk Code
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Semgrep leads by fifty-three points.
Semgrep53%#1 of 13Checkmarx One0%#13 of 13Mid-marketThe figures above
Semgrep leads by thirty-four points.
Semgrep36%#1 of 10Checkmarx One2%#8 of 10Enterprise
The order flips: Checkmarx One leads at enterprise.
Checkmarx One54%#1 of 10Semgrep4%#5 of 10What the models said about Semgrep
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Semgrep OSS and Bandit are fast and low false-positive for obvious patterns, but miss vulnerabilities that span multiple functions... insufficient as sole nightly security scanners” Muse Glimmer 30B · negative prompt · soft negative
“Semgrep Community Edition as your only deep security scanner: It can be useful for fast checks and custom rules, but its analysis is limited to a file/function context” GPT-6 Luna · negative prompt · soft negative
“Checkmarx, Veracode, and Semgrep have all struggled with this because their rule-based engines flag anything that could be a vulnerability” Claude Haiku 4.5 · negative prompt · soft negative
“Semgrep as the primary scanner across all languages... For most budget-constrained companies, Semgrep OSS + SonarQube Community Edition... is the most commonly recommended starting point” Muse Glimmer 30B · budget prompt · first choice
“Tools like Semgrep are generally preferred for modern CI/CD because they are lightweight, customizable, and run significantly faster.” GLM 4.7 FlashX · negative prompt · first choice
“look for developer-friendly alternatives like Semgrep, where rules are written in YAML and read like standard code” Gemini 3.5 Flash · negative prompt · first choice
What the models said about Checkmarx One
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of six in this category shown.
“What I'd Avoid for Mid-Market: Checkmarx and Veracode are powerful but typically start at $60K–$100K+/year” Kimi K2 · paraphrase prompt · hard negative
“be especially cautious with legacy configurations of Checkmarx, Fortify/OpenText, and SonarQube for security use cases unless they are heavily tuned” Muse Glimmer 30B · negative prompt · soft negative
“Legacy enterprise | Checkmarx, Veracode, Fortify | Deep compliance... unless you have specific compliance requirements that mandate legacy tools” Kimi K2 · scale prompt · soft negative
“Checkmarx One (Gartner/Forrester Leader): Enterprise-grade with deep dataflow/taint analysis... Checkmarx for banks” Grok 4.1 Fast · comparative prompt · first choice
“an enterprise-grade scanner (like Checkmarx or Fortify) for nightly full-scan reports and compliance auditing.” Qwen 3.7 Flash · comparative prompt · first choice
“Gartner Magic Quadrant Leader for 7 consecutive years... Best For: Large enterprises, portfolio-level governance” Kimi K2 · comparative prompt · first choice
Also compared
Semgrep vs SonarQubeSemgrep vs Snyk CodeSemgrep vs SnykSemgrep vs CodeQLSemgrep vs GitHub Advanced SecuritySemgrep vs Veracode Static AnalysisSonarQube vs Checkmarx OneSnyk Code vs Checkmarx OneSnyk vs Checkmarx OneCodeQL vs Checkmarx OneGitHub Advanced Security vs Checkmarx OneVeracode Static Analysis vs Checkmarx OneAll twenty-eight head-to-head pages and the full SAST standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.