Wolfia vs Vanta: Which is Better for Security Questionnaires? (February 2026)

You need to compare Wolfia vs Vanta because Vanta's sales team told you their AI handles security questionnaires, and it does, just not the way you'd expect. Their tool suggests answers but you're still copying them into OneTrust and ServiceNow manually. Wolfia's Portal Agent actually completes those portals without you touching a keyboard. If security questionnaires are blocking deals and not just a compliance checkbox, that difference is worth understanding before you sign a contract.

TLDR:

• Vanta suggests answers you copy-paste manually; Wolfia auto-fills entire questionnaires.
• Wolfia's Portal Agent logs into OneTrust, ServiceNow, and 45+ portals to complete requests end-to-end.
• Vanta caps questionnaires at 25-144 per year; Wolfia has no limits or overage fees.
• Every Wolfia answer cites its source to prevent AI hallucinations.
• Wolfia offers flat annual pricing with no Year 2 increases or hidden module fees.

Vanta started as a compliance automation tool, built to help companies get SOC 2 certified faster. The core product monitors your infrastructure, collects evidence automatically, and maps everything to frameworks like SOC 2, ISO 27001, HIPAA, and GDPR. It connects with over 375 services to track security controls in real time.

Think of it as an always-on compliance checker. Vanta watches your systems and flags gaps before auditors do. That's valuable if you're pursuing or maintaining certifications.

Over time, Vanta added questionnaire automation as part of its trust management suite. Their AI reviews incoming security questionnaires and suggests answers based on your compliance posture and documentation. According to Vanta, these AI-generated responses achieve an 80% immediate acceptance rate from human reviewers.

But questionnaire automation is an add-on feature, not the core focus. Vanta's DNA is compliance monitoring and audit prep. If your main pain point is answering hundreds of customer security questionnaires each month, you're buying a compliance tool to solve a questionnaire problem.

That's where the comparison gets interesting.

Wolfia auto-fills security questionnaires across Excel, PDF, Word, and web portals. You review answers instead of writing them from scratch. Every response cites its source, so you know exactly where information came from.

The Portal Agent logs into OneTrust, ServiceNow, Zip, Ariba, Coupa, and Prevalent to fill out questionnaires end-to-end while you sleep. No other tool does this. Everyone else makes you copy-paste suggested answers into portals manually.

You also get a free Trust Center where prospects can self-serve on security docs, certs, and policies without emailing your team. The legal review module handles security addenda and customer contracts, flagging problematic clauses and suggesting edits based on your standards.

The knowledge base maintains itself. Our AI keeps facts current without months of manual setup or tagging. Onboarding takes days, not quarters.

Wolfia works exclusively with B2B SaaS companies selling to enterprise buyers. We're not a compliance tool with questionnaire features bolted on. We're a questionnaire tool built to help you close deals faster.

The biggest difference between these tools is what happens after the AI analyzes a question.

Vanta suggests answers you copy and paste into security questionnaires manually. Their AI covers 75% of security questionnaire questions, leaving the rest for your team to write. Standard plans cap responses at roughly 25 per year. Higher tiers go up to 144 annually. Go beyond those limits and you're paying overage fees or upgrading tiers.

Wolfia auto-fills the entire questionnaire. You review what's already written instead of copying suggestions field by field. No questionnaire caps. No overage fees. Answer 50 this month or 500 next month and pricing stays the same.

Vanta doesn't log into third-party portals for you. If a customer sends an OneTrust or ServiceNow link, you're still copying answers manually into each field.

Wolfia's Portal Agent logs into OneTrust, ServiceNow, Zip, Ariba, Coupa, Prevalent, and 45+ other portals to complete questionnaires end-to-end. You wake up and it's done. No one else does this.

Vanta splits development resources across compliance monitoring, policy management, evidence collection, and audit prep. Security questionnaires compete for attention with everything else.

Wolfia only does questionnaires. Every engineering hour goes toward better accuracy, faster fills, and broader portal coverage. That's the whole job.

Both tools use AI to generate answers. The difference is what happens when the AI doesn't know something.

Vanta pulls answers from uploaded documentation and existing knowledge bases. When documentation is sparse or missing, the system may provide vague responses or hallucinate information. Teams must manually review every AI-generated answer against source docs. You end up doing double work: waiting for the AI, then fact-checking everything it wrote.

Multiple user reviews mention spending time catching inaccuracies in AI-produced responses. That's not automation. That's AI-assisted manual work.

Wolfia built 10+ hallucination prevention guardrails specifically for security questionnaires. Every answer includes explicit source citations showing which document or policy supports the response. The AI never converts partial statements like "some" to absolute claims like "all." It never cites information without a verifiable source.

Wolfia Expert flags weak or incomplete answers before you send anything to customers. If the knowledge base doesn't have enough information to answer confidently, you see the gap immediately.

The knowledge base connects to Google Drive, Confluence, and SharePoint to stay current. No manual tagging. No monthly cleanup sessions. When you update a policy doc, answers update automatically.

Vanta uses Year 1 discounts to win new customers, then raises prices 10-30% at renewal. Module-based pricing means you pay separately for questionnaire automation, trust center, and vendor management beyond the base compliance package. Plans cap security questionnaires between 25 and 144 per year depending on tier.

If you're processing 200+ security questionnaires annually, you'll hit those caps mid-year. That triggers overage fees or forced tier upgrades. Once Vanta's agents integrate across your infrastructure, switching costs climb. You have less negotiating power at renewal because migration means reconfiguring dozens of connections.

Budget predictability suffers when you can't forecast how many security questionnaires will land in Q4.

Wolfia charges flat annual pricing based on company segment. No Year 2 surprises. No hidden module fees. Security questionnaire automation is unlimited, so you never face overage charges or tier upgrades whether you process 50 or 500.

Trust Center is included free. No per-access fees. No user limits. No credit-based consumption models that make forecasting impossible.

When finance asks you to justify tool spend, you can give them a single number that won't change. That's the whole pricing model.

Vanta works if you're focused on compliance automation for SOC 2 or ISO 27001 and handle fewer than 25 security questionnaires yearly. If you already use Vanta for compliance monitoring, adding the questionnaire feature might handle light volumes.

Wolfia is the better choice when security questionnaires actually block revenue. If you're answering 200+ annually, you need auto-fill with source citations, not copy-paste suggestions. You need portal automation that completes OneTrust and ServiceNow requests without manual intervention. You need flat pricing structures that won't trigger mid-year upgrades when your pipeline grows. Companies like Ramp chose Wolfia after hitting volume limits elsewhere, cutting response time from days to hours while maintaining answer accuracy across hundreds of monthly requests.

Most companies outgrow their first questionnaire solution when volume spikes. Wolfia handles that growth without tier upgrades or per-questionnaire fees because we built the tool specifically for high-volume questionnaire automation. Portal agents fill out OneTrust and ServiceNow requests while you focus on closing deals, not copying suggested answers into web forms. Your team can schedule a walkthrough to see how auto-fill works across different portal types.

If you're pursuing SOC 2 certification and answer fewer than 25 security questionnaires yearly, Vanta makes sense as your compliance tool with light questionnaire support. If you're processing 200+ security questionnaires annually and compliance is already handled, Wolfia is purpose-built for that volume without caps or overage fees.

Vanta's AI suggests answers that you manually copy into each field of your security questionnaires. Wolfia auto-fills the entire document across Excel, PDF, Word, and web portals so you review completed questionnaires instead of transferring answers field by field.

B2B SaaS companies with 100-2,000 employees processing 200+ security questionnaires per year, where a 1-2 person team is bottlenecked by manual questionnaire work. Companies like Ramp, Amplitude, and Miro use Wolfia when security questionnaires actively block revenue.

Yes. The Portal Agent logs into OneTrust, ServiceNow, Zip, Ariba, Coupa, Prevalent, and 45+ other portals to complete security questionnaires end-to-end while you sleep. No other tool does this; competitors require you to manually copy answers into portal fields.

You'll hit overage fees or forced tier upgrades mid-year since Vanta caps responses between 25 and 144 annually depending on plan. Wolfia has no questionnaire caps, so your pricing stays flat whether you process 50 or 500 security questionnaires.