{}Best AI Code Security

Legit Security vs Semgrep for AI code security

ANSWER FIRST

Legit Security scores 4.4 and Semgrep 3.5 on our AI code security criteria, so Legit Security ranks higher on the published weights. Legit leads on AI code and assistant coverage, endpoint deployment and tamper resistance, governance and policy control and remediation and ASPM depth; Semgrep leads on developer experience and pricing and buying clarity. The widest gap is endpoint deployment and tamper resistance, where Legit scores 5.0 against 3.0.

Editorial assessment · Compiled from vendor product, docs, pricing and marketplace pages · Rated October 2026

How do Legit Security and Semgrep score side by side?

Legit Security and Semgrep: editorial assessment, 0-5. Last reviewed October 2026.
CriterionWeightLegit SecuritySemgrepEdge
Coverage of AI-generated code and AI coding assistants25%5.03.5Legit
Endpoint deployment and tamper resistance20%5.03.0Legit
Governance and policy control for the CISO20%4.52.5Legit
Developer experience and low friction15%3.54.5Semgrep
Pricing and buying clarity10%2.54.0Semgrep
Remediation and ASPM depth10%5.04.0Legit
Weighted total4.43.5

Legit Security leads on 4 criteria, Semgrep leads on 2, and 0 are tied.

Legit Security

Verdict for Legit Security: strengths and limitations

diff --verdict legit-security · reviewed 2026-09

@@ strengths @@

  • Strength:VibeGuard 2.0 (3 Aug 2026) discovers coding agents on the developer endpoint, blocks dangerous operations, secures MCP use and resists tampering. [source]
  • Strength:Named support for Claude Code, Cursor, GitHub Copilot, Windsurf and MCP-based assistants. Codex: supported (per Legit). [source]
  • Strength:Runs SAST and SCA inside the IDE and keeps secrets from being shared with AI systems during generation. [source]
  • Strength:Secrets scanning covers Git history, Jira, Confluence, Slack and developers' personal GitHub accounts. [source]
  • Strength:ASPM core pulls in existing scanners and de-duplicates findings, scored by business and exposure context. [source]

@@ limitations @@

  • Limitation:No prices, pricing unit or free tier published. [source]
  • Limitation:No self-serve start for a single developer or a small team. [source]
  • Limitation:Reachability is not the headline prioritization method on the pages reviewed. [source]

Semgrep

Verdict for Semgrep: strengths and limitations

diff --verdict semgrep · reviewed 2026-09

@@ strengths @@

  • Strength:Free for up to 10 contributors and 10 private repositories. [source]
  • Strength:Teams priced at $30 per contributor per month (Code or Supply Chain) and $15 for Secrets. [source]
  • Strength:Semgrep Guardian runs an MCP server and hooks that fire on every file write in Claude Code, Cursor and Windsurf. [source]
  • Strength:Guardian blocks malicious dependencies and hardcoded credentials at generation time. [source]

@@ limitations @@

  • Limitation:No org-wide discovery of assistants or MCP servers on the pages reviewed. [source]
  • Limitation:GitHub Copilot is not listed for Guardian; Guardian pricing not stated. [source]

How do Legit Security and Semgrep cover AI code and coding assistants?

Legit Security: VibeGuard discovers every AI model, code assistant, MCP server and skill on developer endpoints and runs SAST and SCA in the IDE. Legit names Claude Code, Cursor, GitHub Copilot, Windsurf and Amazon Q Developer. Codex: supported (per Legit).

Semgrep: Semgrep Guardian scans inside Claude Code, Cursor and Windsurf as code is written; org-wide discovery of assistants or MCP servers is not described and Copilot is not listed.

Assistants named on their public pages: Legit Security: Claude Code, Cursor, GitHub Copilot, Windsurf and OpenAI Codex (Codex: supported (per Legit)); Semgrep: Claude Code, Cursor and Windsurf.

Where do their controls run on the developer machine?

Legit Security: VibeGuard 2.0 is built "as a full desktop app, and not as a plugin", and its anti-tampering stops agents or threat actors "from disabling VibeGuard". A secrets MCP backed by the OS keychain scopes credentials to the session and keeps them out of agent history and memory.

Semgrep: Guardian runs on the developer machine as an MCP server, hooks on every file write and skills; tamper resistance is not described.

How much control does the security team get?

Legit Security: A central management console lets security teams approve, block or flag assistants, models and MCP servers and enforce custom or built-in command policies. Audit-log detail specific to VibeGuard is not covered on the public pages reviewed; the platform states an audit trail for policy compliance. Ask Legit for specifics during evaluation.

Semgrep: Guardian enforces checks per agent, but the pages reviewed show no central inventory or policy over which agents and MCP servers may run.

How do they fit the developer's workflow?

Legit Security: Reaches developers through the IDE, a CLI and MCP, and surfaces dangerous operations for the developer to decide rather than blocking them silently, but there is no free or self-serve tier.

Semgrep: Free for up to 10 contributors and 10 private repos, with VS Code and JetBrains support.

How do they fix and prioritize findings?

Legit Security: Agentic remediation fixes first-party SAST and dependency (SCA) findings and opens pull requests; risk is ranked by business context and reachability, and findings from existing scanners are consolidated.

Semgrep: Semgrep Assistant auto-triages findings, and remediation guidance appears in pull requests and IDEs.

How do they compare on price?

Legit Security: free tier: No (free trial on request); lowest published paid option: AWS Marketplace: $60,000 for 12 months, all modules, 100 users (marketplace price); pricing unit: Users (marketplace bundle).

Semgrep: free tier: Yes: up to 10 contributors; lowest published paid option: $30 per contributor per month (Code or Supply Chain); $15 (Secrets); pricing unit: Contributor.

Source: Legit Security pricing · Reviewed Sep 2026

Source: Semgrep pricing · Reviewed Sep 2026

Which should you choose?

Choose Legit Security if AI code and assistant coverage and endpoint deployment and tamper resistance matter most: Legit scores 5.0 and 5.0 there, against 3.5 and 3.0 for Semgrep. Choose Semgrep if developer experience and pricing and buying clarity matter most: Semgrep scores 4.5 and 4.0 there, against 3.5 and 2.5 for Legit.

Frequently asked questions

Is Legit Security or Semgrep better for AI code security?

Legit Security scores 4.4 and Semgrep 3.5 on our AI code security criteria, so Legit Security ranks higher on the published weights. Legit leads on 4 of 6 criteria and Semgrep on 2; 0 are tied. Which is better depends on which criteria matter most to you; the calculator on this site re-weights them.

How do Legit Security and Semgrep price their plans?

Legit Security: free tier: No (free trial on request); lowest published paid option: AWS Marketplace: $60,000 for 12 months, all modules, 100 users (marketplace price). Semgrep: free tier: Yes: up to 10 contributors; lowest published paid option: $30 per contributor per month (Code or Supply Chain); $15 (Secrets). Prices as published on vendor pages and marketplace listings, reviewed 2026-10-11.

Which AI coding assistants do Legit Security and Semgrep name?

On the pages we reviewed, Legit Security names Claude Code, Cursor, GitHub Copilot, Windsurf and OpenAI Codex (Codex: supported (per Legit)) and Semgrep names Claude Code, Cursor and Windsurf. 'Not named' means we did not find the assistant on the vendor's pages; it does not prove the tool cannot work with it.

Read the full reviews

Where next?

More head-to-heads

Sources reviewed

Legit Security

Semgrep

Last reviewed October 2026. Editorial assessment from public vendor material; no hands-on testing.