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Claude Code Security is in limited research preview, available only via waiting list. Codex Security (formerly Aardvark) launched in research preview in March 2026 for ChatGPT Pro, Enterprise, Business, and Edu customers via Codex web. This comparison is based on each vendor’s published product pages and materials — no independent evaluation has been possible for either tool. Oplane is available to everyone with a free starter trial, today.

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What they find

The fundamental difference is not just how each tool works, but what it looks for. Both Claude Code Security and Codex Security scan code for technical vulnerabilities — Codex additionally generates an editable threat model to contextualise its results. Oplane analyses your application’s use cases to identify abuse cases and threats — a higher level of security thinking.

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AI security scanners

CCS & Codex — find code-level vulnerabilities:
  • Shell command injection in deploy.py
  • JWT validation allows algorithm=none

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Oplane

Finds abuse cases and threats:
  • “An attacker can gain access to another user’s order”
  • “All authenticated users can access admin pages”
Oplane understands your application’s use cases and derives abuse cases and threats from them automatically. Neither CCS nor Codex Security has a concept of use cases — they scan code for vulnerability patterns but cannot reason about what the code is supposed to do or who might misuse it. Codex Security does generate an editable threat model, but it is project-level context rather than use-case driven analysis.

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Side-by-side

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Development workflow

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Compliance & governance

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Enterprise & infrastructure

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OWASP Top 10 (2025)

The OWASP Top 10 2025 draft reflects the latest trends in application security risks. Here’s how each tool addresses these categories — from design-level threats to code-level vulnerabilities.

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Where Oplane excels for security teams

Use-case driven analysis

Goes beyond code-level bugs — models abuse cases, threat scenarios, and business-level risk from your application’s actual behaviour.

Organisation-aware

Understands your architecture, tooling choices, and internal standards so every finding is relevant to your stack.

Security in the dev loop

Reviews your feature PRs inline with development — no context switches, no separate fix PRs to triage.

Built-in change management

Risk assessment per change with a structured, auditable trail — directly supports ISO 27001 A.8.32 and SOC 2 CC8.1.

Compliance-ready output

Audit trails, evidence collection, and proof-of-compliance reporting available when you need them.

Genuinely independent review

Acts as a separate reviewer of your code — never evaluates its own output.

Your infrastructure, your rules

Bring your own model via AWS Bedrock or Azure OpenAI, with full data residency and sovereignty controls.
Both Claude Code Security and Codex Security are useful vulnerability scanners for teams already in the Anthropic or OpenAI ecosystems. Neither is a security platform. For organisations where security is a function with real compliance requirements — change management, remediation planning, audit evidence, independent review, and organisation-aware analysis — Oplane is purpose-built for that job. Security belongs in the development loop. Oplane puts it there.