$99 monthly
- ✓ 10 agents
- ✓ 1,000 queries/month
- ✓ 5,000 documents per agent
- ✓ 60M-word storage capacity
- ✓ 3 team members + RAG API access
Updated September 5, 2026
CustomGPT.ai lets businesses build AI agents grounded in their own websites, documents, help centers and private knowledge. Its core pitch is RAG-based answers with source citations, plus embedding, API and integration options for customer support, internal knowledge and research workflows.
Start with the trial only if you have a real knowledge-base use case ready to test. The current Standard plan is $99/month on monthly billing, so validate answer quality and query volume before the trial renews.
\nAffiliate disclosure: COSHUMA may earn a commission from some links on this page, at no extra cost to you.
Start CustomGPT.ai →A paid promotional placement can appear here when this inventory is active.
Learn more →The official pricing page currently lists Standard at $99/month or $89/month billed annually, Premium at $499/month or $449/month billed annually, and Enterprise at custom pricing.
CustomGPT.ai's official MIT case study says the Martin Trust Center for MIT Entrepreneurship built ChatMTC to give entrepreneurs 24/7 access to entrepreneurship knowledge across multiple MIT sources. The published case study highlights replies in seconds, support for 90+ languages and source-grounded answers as the core outcome.
Load a representative knowledge set, test citations and measure query usage during the trial before deciding whether Standard or Premium makes economic sense.
Start CustomGPT.ai →Sponsored placement starts at USD 49. Approved sponsorships receive a clearly labeled promotional placement in designated high-visibility areas. Premium positions are priced separately based on placement and availability. Sponsorship does not change independent editorial ratings or organic rankings.
See sponsorship options → Email a sponsorship request →This inquiry link does not create a charge.
Software details and prices can change. Verify final terms on the vendor site before purchasing.
These are workflow problems the tool's documented capabilities can help address. COSHUMA does not promise a specific business result.
Use the tool to create a service, workflow or deliverable someone may pay for. These are use-case ideas, not income guarantees.
Difficulty: Intermediate · Starting cost: 7-day trial/paid
Example deliverable: Configured AI agent grounded in approved client websites and documents with test questions and handoff notes
Difficulty: Intermediate · Starting cost: 7-day trial/paid
Example deliverable: Support assistant prototype with curated sources, response testing, escalation guidance and deployment instructions
Difficulty: Advanced · Starting cost: Paid
Example deliverable: Production-oriented agent workflow using approved data sources and RAG API access with integration and maintenance documentation