iFixAi (site) is an independent auditor that runs 250 inspections across 69 categories to find misalignment in AI agents, combining red teaming, operational checks, and ethical review. It's freemium: a free open-source tier (60 inspections, self-hosted), with paid Startup, Growth, and Enterprise tiers whose USD pricing isn't stated.
Comparison table
| Product | Free tier | Starts at | Best for |
|---|---|---|---|
| Hlido | No | Not stated | Teams wanting a consulting-led, evidence-backed audit |
| TAB Platform | Yes | $0.03/test | Pay-per-use verification without subscriptions |
| AuditAI | No | Not stated | Enterprises needing EU AI Act and shadow IT audits |
| Evidently AI | Yes | Free | Teams wanting open-source evals and observability |
| Skeptick AI | Yes | Not stated | One-time agent certification with a free pilot |
| InspectModular | Yes | $18/mo | Dev teams wanting ongoing agent activity logging |
| ArgusAI | Yes | Not stated | Blocking risky LLM/MCP calls in real time |
Hlido
Hlido (site) is a consulting and implementation firm offering evidence-backed trust checks for AI agents, with its AI Review Desk having tested 840+ agents. It suits companies that want a human-led audit rather than a self-serve tool. The Review Desk is free with no sign-up, but no pricing is disclosed for the firm's core consulting work, which makes cost planning harder upfront.
TAB Platform
TAB Platform (site) positions itself as a verification layer for AI agents, billing per test rather than by subscription: $0.03 per text test, $0.10 per tool-use test, $0.25 per browser test. The first agent gets free security screening. It suits teams that want granular, usage-based costs instead of tiered plans, though per-test pricing can be harder to forecast at scale than a flat subscription.
AuditAI
AuditAI (site) targets enterprise AI security, shadow IT detection, and EU AI Act compliance audits, including white-labeled offerings for crypto compliance. It suits larger, regulated organizations needing a compliance-first angle rather than a philosophical/ethical audit lens. No pricing information is published, so buyers must contact the vendor directly to know what it costs.
Evidently AI
Evidently AI (site) is a fully open-source, Apache 2.0-licensed framework for evaluations and observability of LLM apps, free to download and self-host. It suits engineering teams that want to build their own evaluation and monitoring pipeline rather than buy an external audit. Its limitation: it's a DIY framework, not an independent third-party audit like iFixAi, so you do the assessment work yourself.
Skeptick AI
Skeptick AI (site) offers an Agent Integrity Layer to monitor, govern, and certify AI agent decisions, with a 14-day free pilot and no commitment. Paid certification costs $4,900 per agent, one-time. It suits companies wanting a fixed-cost certification rather than ongoing subscription pricing. Core platform pricing beyond the pilot and certification fee isn't disclosed.
InspectModular
InspectModular (site) logs everything AI agents do, including AI call logging and local secret detection, with a free tier for one developer. Paid Team plans start at $18/developer/month (billed annually) for 10–100 developers, with a higher tier also mentioned. It suits dev teams wanting continuous visibility rather than a periodic audit report, though it's newly launched (September 2026) with limited track record.
ArgusAI
ArgusAI (site) acts as an AI firewall, screening LLM calls, MCP tools, and agentic workflows in real time rather than auditing after the fact. It's in public beta with a free interactive playground and waitlist; paid Starter, Growth, Pro+, and Enterprise plans are coming but pricing isn't published yet. It suits teams wanting active blocking rather than a diagnostic report, though the paid product isn't fully available yet.
How to choose
If you want a deep, independent misalignment audit like iFixAi, Hlido or AuditAI are the closest matches, though both keep pricing private. If you'd rather build your own evaluation pipeline, Evidently AI is free and open source. If you want ongoing monitoring or real-time blocking instead of a one-off audit, look at InspectModular or ArgusAI. If usage-based or fixed one-time pricing matters more than a subscription, consider TAB Platform or Skeptick AI.
FAQ
Is iFixAi free? It has a free open-source tier (60 inspections, self-hosted); paid tiers exist but pricing isn't stated. Which alternative has the clearest pricing? TAB Platform, with published per-test rates starting at $0.03. Which alternative is fully open source? Evidently AI, under an Apache 2.0 license.