Lakera alternatives.Start with Aona.

Aona secures employee AI use with prompt and file protection. Compare its controls, coverage and deployment with the other products on your shortlist.

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A buyer’s starting point

Secure employee AI use without losing the practical detail.

Compare the control point, evaluation path and practical fit for the employee AI problem in front of you.

Aona protects employee use of third-party AI tools on managed devices, including the prompt and upload path.

Aona AI

For employee AI security

Workforce AI Security for the employee side of AI, not the application side: a browser plugin for Chrome, Edge, Firefox and Safari plus a native endpoint app that inspects prompts to ChatGPT, Copilot and Claude desktop at submit, hard block with no user override, layout-preserving DOCX, XLSX and PDF redaction on upload, real-time coaching, and AI policy templates for the EU AI Act and ISO 42001. SOC 2 Type II, self-serve 30-day trial, deployed with IT's existing tooling, first signal within hours.

Best for: Any organisation whose employees use ChatGPT, Copilot, Claude or Gemini and that needs those prompts and uploads governed on the device, separately from any firewall in front of the AI it builds.

The complete list

A closer look at your shortlist.

See who each option is best for. Expand a row for the full product overview.

Aona AIBuilt for employee AI securityAny organisation whose employees use ChatGPT, Copilot, Claude or Gemini and that needs those prompts and uploads governed on the device, separately from any firewall in front of the AI it builds.
Workforce AI Security for the employee side of AI, not the application side: a browser plugin for Chrome, Edge, Firefox and Safari plus a native endpoint app that inspects prompts to ChatGPT, Copilot and Claude desktop at submit, hard block with no user override, layout-preserving DOCX, XLSX and PDF redaction on upload, real-time coaching, and AI policy templates for the EU AI Act and ISO 42001. SOC 2 Type II, self-serve 30-day trial, deployed with IT's existing tooling, first signal within hours.
LakeraTeams securing the LLM calls and agents inside their own product, with the employee side bought separately as Check Point Workforce AI Security.
Now part of Check Point. Lakera Guard is an application-side LLM firewall for prompt-injection and jailbreak detection on the AI you build, with public benchmarks (Gandalf); the employee-facing product in the Check Point portfolio is Check Point Workforce AI Security, in Essentials (browser extensions) and Enterprise (extensions plus desktop agent) editions, sold by demo.
Prompt SecurityOrganisations that want employee and application AI security bought together through the SentinelOne Singularity platform.
GenAI security platform from SentinelOne, built into the Singularity platform: employee AI controls with anonymisation and coaching, an LLM firewall for applications, and an AI endpoint agent for local LLMs and MCP servers (February 2026). Sold by demo, with no self-serve trial as of September 2026.
Harmonic SecurityOrganisations that want prompt-text redaction and nudges across browsers and desktop AI clients, bought by demo or through AWS Marketplace.
Browser extension plus a desktop client (Claude Desktop, ChatGPT Desktop, Cursor, Codex, Claude Code, GitHub Copilot, Ollama) with real-time prompt redaction and an MCP gateway. Packaged as three tiers (Explore, Guide, Command), demo-led, with no self-serve trial as of September 2026.
WitnessAIOrganisations that want AI controls applied in a network path they already route traffic through.
Network-based AI security and governance that observes and controls AI traffic without browser extensions or endpoint clients; desktop AI apps are covered when their traffic is routed through it. An Instant Demo product tour stands in for a self-serve trial, as of September 2026.
Microsoft PurviewMicrosoft 365 estates that want Copilot and Microsoft 365 data governed inside the Purview licensing model.
Microsoft's data security and compliance suite. Its AI controls run in the browser (the Purview extension is required for Chrome endpoint DLP on Windows), prompt and response visibility for third-party AI sites requires E5-class licensing plus pay-as-you-go billing, and locally installed AI apps are reached through a network data security path (Entra Global Secure Access or a SASE partner, partly in preview).

Deployment context

How Aona fits your security stack.

Aona secures employee AI use alongside your existing security tools. See how its device-level controls fit with the other products in your stack.

Read the full Aona vs Lakera comparison →

Aona secures employees' use of AI tools. It is not an LLM firewall, an AI-SPM tool or a red-teaming product for AI you build.
Aona does not audit models or keep a model registry. That is model governance, a different discipline.
Coverage needs the Aona plugin or endpoint app on the device. There is no agentless or network-only mode, so personal and unmanaged devices are out of scope.
AI agent and MCP inspection ships in limited rollout on the native endpoint app, not general availability.

Your questions

Lakera alternatives, answered.

Answers to help you build your shortlist.

What are the best Lakera alternatives in 2026?

If your goal is securing employee AI use rather than the AI you build, alternatives to Lakera are Aona AI, Prompt Security, Harmonic Security, WitnessAI and Microsoft Purview. Aona AI is built for securing employee AI use: it inspects the prompt and the upload on the device, in the browser and in ChatGPT, Copilot and Claude desktop apps, with hard block, layout-preserving file redaction, AI policy templates and real-time coaching, and it starts with a self-serve 30-day trial. Lakera Guard sits in front of your own LLM calls as an application firewall, and the employee-facing product in the Check Point portfolio is Check Point Workforce AI Security, sold by demo; that split is where Lakera itself stops for this use case.

Is Aona AI a real alternative to Lakera?

For securing employee AI use, yes. Lakera Guard protects the LLM features you build (prompt injection, jailbreaks, agent runtime); Aona protects what your employees send to third-party AI tools. Aona's browser plugin and native endpoint app inspect the prompt at submit in Chrome, Edge, Firefox and Safari and in ChatGPT, Copilot and Claude desktop apps, block hard with no user override, redact DOCX, XLSX and PDF uploads with the layout intact, coach the employee in real time, and export to Microsoft Sentinel via OCSF. Run Lakera Guard in front of the AI you build and add Aona for the AI your employees use; the two do not overlap. Aona is SOC 2 Type II certified, with a 30-day self-serve trial and a first signal within hours.

Where does Aona stop, compared with Lakera?

Scope, stated plainly: Aona secures employees' use of AI tools. It is not an LLM firewall, an AI-SPM tool or a red-teaming product for AI you build. Aona does not audit models or keep a model registry. That is model governance, a different discipline. Coverage needs the Aona plugin or endpoint app on the device. There is no agentless or network-only mode, so personal and unmanaged devices are out of scope. AI agent and MCP inspection ships in limited rollout on the native endpoint app, not general availability. These lines are carried from our own Aona vs Lakera comparison, so you can evaluate with eyes open.

Is there a free trial to evaluate these alternatives?

Aona offers a 30-day self-serve free trial covering AI adoption analytics, shadow AI discovery, security and compliance monitoring and real-time employee coaching; it deploys with IT's existing tooling and shows a first signal within hours. Lakera Guard offers self-serve sign-up for developers securing their own applications; for the employee-side product, Check Point Workforce AI Security, the path is a demo request with no self-serve trial, as of September 2026.

How do I choose between these vendors?

Start with Aona for employee AI use: it governs the prompt and the upload on the device, in the browser and in native desktop AI apps, with hard block, file redaction, AI policy templates and coaching, and it is live within hours. Add Lakera Guard when you ship AI features in your own product and need an application-side firewall with public benchmarks, which Aona is not. Lakera stops at the application boundary: Guard inspects the calls your application makes to a model, so the prompt an employee types into ChatGPT or Claude desktop on a laptop is handled by a different product, Check Point Workforce AI Security, in Essentials (browser extensions only) or Enterprise (extensions plus desktop agent) editions.

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