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Inspect

UK AISI’s open-source framework for frontier AI evals

Agents and toolsFrontier model safetyOpen source

Inspect is the UK AI Security Institute’s framework for frontier AI evaluations, with built-in agents, MCP and tool support, sandboxing in Docker or Kubernetes, and 200+ ready-made evals in Inspect Evals. AISI open-sourced it in May 2024, and it has 240+ contributors. NIST CAISI ported AgentDojo to it for agent hijacking evaluations.

Best for: Model builders and evaluators running agentic, cyber and harm evals.

Open source (MIT), maintained by the UK AI Security Institute with Meridian Labs

  • – Maps to OWASP
  • – Maps to MITRE ATLAS
  • – Maps to the EU AI Act
  • – SOC 2 or ISO 27001
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Facts checked November 9, 2026 against the sources listed below. Inspect does not pay to appear here.

1 Legal nameInspect (inspect_ai)
2 HeadquartersLondon, United Kingdom
3 Founded2024
4 TeamNot disclosed
5 What they testFoundation models, Agents and tool use, Frontier safety (CBRN, cyber), Prompt injection and jailbreaks, Multimodal
6 FrameworksNot disclosed
7 CertificationsNot disclosed
8 Published pricesFree (MIT)
9 Customers and partnersUK AISI says METR and Apollo Research build their evaluations on it.

Worth knowing before you sign

  • Not a turnkey red teaming product: no attack library mapped to OWASP or ATLAS, and it needs eval engineering.
  • Still on 0.x versions.

Go to Inspect's site

Sources

  1. GitHub: UKGovernmentBEIS/inspect_ai
  2. Inspect docs
  3. GOV.UK: open-source release
  4. UK AISI: engineering playbook

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