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Comp AI vs Vanta vs Drata: which compliance-automation platform for SOC 2 and ISO 27001?
Drafted May 24, 2026 by Pondero Editorial.
The trap with compliance automation is treating the three big names as interchangeable dashboards that all pull the same integrations and spit out the same evidence. They do overlap on the mechanics. Where they split is the bet you are making: an open, self-hostable platform you can read the source of, or an incumbent with a long track record and an auditor network, sold the way enterprise software is sold. That bet, not the feature checklist, is what you are actually choosing between.
The short answer. Look at Comp AI when cost and transparency matter and you are comfortable with a newer, open-source platform you can self-host. Reach for Vanta when you want the most-recognized incumbent and the widest framework and integration coverage. Pick Drata when you want a mature, sales-led platform with deep automation and you are buying for scale. Below is the reasoning per platform, a feature split, and three buyer profiles. For the wider category, see our AI orchestration tools directory.
Why the cost model decides this
Compliance platforms converge on the same loop: connect your cloud and apps, collect evidence automatically, map it to controls, and hand an auditor a tidy package. So the real divider is not "does it automate SOC 2," because all three do. It is how you buy and run it. Vanta and Drata are sales-led incumbents that do not publish prices; you book a demo, scope your size and frameworks, and get a quote. (Vanta pricing, Drata pricing) Comp AI takes the opposite stance: open source under AGPLv3, with self-hosting documented, so the floor can be your own infrastructure rather than a contract. (Comp AI on GitHub) Decide how much you value transparency and a low floor against incumbent track record, then pick.
Three-way feature split
| Dimension | Comp AI | Vanta | Drata |
|---|---|---|---|
| Positioning | Open-source AI-native challenger | Best-known incumbent | Mature automation incumbent |
| Source model | Open source, AGPLv3 open core | Proprietary | Proprietary |
| Self-host option | Yes, documented | No | No |
| Pricing transparency | Public model, self-host floor | Quote-based, no public price | Quote-based, no public price |
| Frameworks | SOC 2, ISO 27001, HIPAA, GDPR, more | SOC 2, ISO 27001, HIPAA, FedRAMP, more | SOC 2, ISO 27001, ISO 42001, HIPAA, PCI DSS, more |
| Buying motion | Self-serve or managed | Sales-led demo | Sales-led demo |
| Track record | Newer, fast-growing | Long, large install base | Long, enterprise focus |
| Best fit | Cost-and-transparency buyers | Broad incumbent coverage | Scale automation |
Details as of May 2026, from each vendor: Comp AI on GitHub, Vanta pricing, Drata pricing. Neither Vanta nor Drata publishes specific prices, so treat any third-party figure as an estimate and get a quote scoped to your company.
Comp AI: open source as the differentiator
Comp AI positions itself directly against the incumbents, and its argument is transparency. Most compliance platforms are closed boxes you trust because you have no choice; Comp AI publishes its code. The core is open source under AGPLv3 in an open-core model, where the bulk of the platform lives in the public repo and a small enterprise edition carries a commercial license. (Comp AI on GitHub) The repo includes self-hosting documentation, so a team that wants to run the platform on its own infrastructure can, rather than signing a SaaS contract as the only path in.
What it does is the standard loop done with AI agents driving evidence collection and control checks: connect your stack, let the agents gather evidence, map it to a framework, and work toward audit-ready. It supports SOC 2, ISO 27001, HIPAA, and GDPR among others. (Comp AI) The pitch lands for a specific buyer: a startup or engineering-led team that wants a low or self-hosted floor, dislikes opaque enterprise pricing, and is fine adopting a newer platform to get those things.
Where Comp AI is the wrong tool: a large enterprise procurement that wants a decade-long track record, a named account team, and the comfort of the most-deployed option, where "newer and open source" reads as risk rather than feature. That comfort is exactly what Vanta and Drata sell.
Vanta: the incumbent with the widest recognition
Vanta is the name most people say first when the topic is SOC 2 automation, and recognition is part of what you buy. It carries broad framework coverage, SOC 2, ISO 27001, HIPAA, HITRUST, GDPR, ISO 42001, FedRAMP, and more, plus a large integration catalog and an established auditor network. (Vanta pricing) For a buyer who wants the safe, widely-deployed choice that an auditor and a board will both recognize, that breadth is the appeal.
Pricing is quote-based. Vanta lists tiers (Essentials, Plus, Professional, Enterprise) with feature descriptions but no dollar amounts, directing you to a demo for personalized pricing. (Vanta pricing) Plan on a sales conversation scoped to your headcount, frameworks, and add-ons rather than a self-serve signup, and on a price that reflects the incumbent position.
Pick Vanta when breadth and recognition matter more than a low floor or source transparency, and when a sales-led purchase is acceptable. Skip it if you want to self-host, read the code, or start without talking to sales, because none of those are the Vanta motion.
Drata: mature automation built for scale
Drata is the other incumbent, leaning hard into deep automation and a structured journey from startup to enterprise. It frames its offering around organizational stages, Startup, Growth, and Enterprise, and supports a wide framework set including SOC 2, ISO 27001, ISO 42001, GDPR, HIPAA, PCI DSS, DORA, and FedRAMP, plus custom frameworks. (Drata pricing) The emphasis is continuous monitoring and automation depth for teams that will live in the platform as they scale.
Like Vanta, Drata does not publish prices; it routes you to contact sales and a demo. (Drata pricing) The buying motion mirrors the incumbent pattern: scope, demo, quote. The differentiator against Vanta is less about a single headline feature and more about fit, automation depth and the staged growth story versus Vanta's recognition and breadth, which is why teams often demo both and choose on the sales experience and the scoped quote.
Pick Drata when you want a mature, automation-heavy platform with a clear scale-up path and a sales-led purchase suits you. Skip it for the same reasons you would skip Vanta if you wanted self-hosting, public pricing, or open source.
A scenario that splits the three
Take three companies starting their first SOC 2 in the same quarter. A seed-stage startup with two engineers and a tight budget. A 60-person SaaS company that wants the recognized, broad-coverage option its enterprise customers will trust. A scaling fintech preparing for multiple frameworks and heavy ongoing monitoring.
- The seed-stage startup: Comp AI. The open-source model and self-host option keep the floor low, and an engineering-led team is comfortable running and reading it.
- The 60-person SaaS company: Vanta. Buyers and auditors recognize it, the framework and integration breadth is there, and the sales-led purchase is normal at that stage.
- The scaling fintech: Drata. The staged growth model and automation depth suit a company headed into multiple frameworks and continuous monitoring at scale.
Three companies, three platforms, because the bet differs: cost and transparency, recognition and breadth, or scale automation. Most teams do not evaluate all three to the wire. They know which of those three they value and should shortlist accordingly.
Which one to adopt
If cost and transparency are what you care about and you are comfortable with a newer, open-source platform you can self-host, start with Comp AI. The AGPLv3 core and documented self-hosting mean the floor can be your own infrastructure, and the AI-native evidence collection covers SOC 2 and ISO 27001 without an opaque contract as the only way in. (Comp AI on GitHub)
If you want the most-recognized incumbent with the widest framework and integration coverage, Vanta is the safe call. Expect a sales-led demo and a scoped quote rather than public pricing. (Vanta pricing)
If you want mature, automation-heavy compliance with a clear path from startup to enterprise scale, Drata is the pick, also sales-led and quote-based. (Drata pricing)
For a cost-conscious or engineering-led team, the default worth trying first is Comp AI, because the open-source floor lets you start without a procurement cycle and judge the platform on your own stack. Move to Vanta or Drata when incumbent recognition, breadth, or scale-grade automation is the thing your buyers and auditors actually require. Whatever you shortlist, get a quote scoped to your real headcount and frameworks before you sign, because compliance pricing only makes sense against your specific scope.