People would pay good money for your expertise. The question is – can they access it?
Launch a new revenue stream with a 24/7 expert AI assistant. Give customers expert answers based on your existing content. No devs. No new headcount.
That’s exactly what TaxWorld did. 
They had thousands of pages of expert knowledge on complex Irish tax law.
With a small team and zero engineers, they used CustomGPT.ai to create a new product offering – an Expert AI tax assistant that shares their specialized knowledge.
The results:
- 2,000+ tax questions answered every day
- 200% revenue growth year over year
- €1M in annual recurring revenue
- 740 paying customers, only 8 cancellations
Turn Your Expertise Into a 24/7 Expert AI Assistant
We call this Knowledge as a Service. Clients get more value. You turn what you know into recurring revenue.
What makes it work?
Every answer comes only from your approved sources – no made-up responses, no random internet results.
Sources are shown on every answer so users can verify statements and build trust.
And it’s built for founders, startups and businesses of any size: upload your files, customize the look, deploy with no coding required.
TaxWorld did it with zero engineering budget.
500+ hours saved per week. And their customers trust it because they can see exactly where every answer came from.
This model works across industries – legal and tax advisory, professional services, financial services, education and training, associations.
Anywhere valuable expertise is stuck in documents that only a few people can access.
Frequently asked questions
How does CustomGPT.ai help me build an expert AI assistant?
CustomGPT.ai turns your organization’s approved content – policies, manuals, knowledge bases, research – into an expert AI assistant that delivers instant, cited answers on demand.
How fast can we launch an expert AI assistant?
Most teams create their first expert assistant in minutes; a branded pilot with your content typically goes live in days, not months.
Do we need developers or an IT project?
No. Core setup is fully no-code: you upload or sync content, set guardrails, brand the assistant, and deploy via embed, link, or API.
How does it answer from our information?
CustomGPT.ai uses Retrieval-Augmented Generation (RAG) to search your content for relevant passages, then generates answers based on those sources. Each response can include clickable citations back to the underlying documents.
How accurate are the answers?
Answers are grounded in your content using RAG, with citations on every response to reduce hallucinations. CustomGPT.ai is third-party verified to have industry-best accuracy.
What security and compliance standards are supported?
SOC 2 Type II, GDPR, SSL in transit, 256-bit encryption at rest. Your data never trains external models, and SSO options are available.
What content can it handle?
Over 1,400 formats, including PDFs, Word docs, spreadsheets, HTML, and synced sources from 100+ platforms directly (e.g., Google Drive, CMS, portals), plus 3,000+ more via MCP and API.
Is it suitable for legal, tax, compliance, or financial use cases?
Yes. CustomGPT.ai is designed for high-stakes domains by grounding answers in controlled documents, providing citations on every response, and supporting strict guardrails and escalation paths.
Can CustomGPT.ai integrate with my existing systems?
Yes. CustomGPT.ai integrates with your existing systems via native connectors, embeds, secure links, and API, so you can add AI assistants alongside current channels.
Is CustomGPT.ai suitable for any type of website?
Yes. It supports a wide range of sites and products, including content libraries, education platforms, member portals, SaaS products, and more.
How does CustomGPT.ai handle updates to our content?
You can upload or re-ingest updated content whenever you need. Premium and Enterprise plans also allow rolling auto-sync from your website and other sources to keep answers current.
Can CustomGPT.ai scale with my business growth?
Yes. The platform is built to handle growing content libraries and rising query volumes, with multiple assistants, teams, and use cases on the same infrastructure.
What languages are supported by CustomGPT.ai?
CustomGPT.ai supports 92 languages, enabling expert AI assistants that can answer questions from a global audience in their preferred language.
What support does CustomGPT.ai provide during deployment?
You get product documentation, tutorials, and responsive customer support; pilots and enterprise projects also include onboarding and best-practice guidance.
Turn Your Expertise Into Revenue with Expert AI.
See how expert AI turned TaxWorld’s documents into a new revenue stream.
Trusted by thousands of organizations worldwide
