Asyntai
Chatbots & Assistants
AI chatbot for websites that answers visitors using your business content
Free plan; Starter from $39/mo
View tool
8.8/10
Updated Sep 14, 2026
Reviewed by TopSaver Editorial
Conversational AI
AI Assistant
AI Agents
Visit CustomGPT · 7-day free trial; Standard from $99/month; Premium from $499/month.
Affiliate link, see our disclosure.
CustomGPT is best suited to businesses that need AI agents grounded in their own documents, websites, knowledge bases, and internal information.
CustomGPT focuses on knowledge-grounded AI rather than general-purpose chat. It can index websites, documents, audio, YouTube content, and business knowledge bases, then deploy agents through websites, APIs, intranets, and other channels. Its enterprise-oriented feature set is strong, although pricing is substantially higher than consumer chatbot products.
Overview
CustomGPT.ai is a no-code RAG platform for creating AI agents from business content. Users can connect websites, PDFs, Office files, YouTube videos, audio, Shopify, Notion, Google Drive, Slack, and other sources. Agents can be embedded on websites, deployed internally, or accessed through an API. Plans include Standard, Premium, and Enterprise.
Business knowledge retrieval and AI agents
CustomGPT's main differentiator is its focus on grounding responses in an organisation's own information. It supports large knowledge bases, multiple document formats, multilingual content, website indexing, and RAG-based retrieval. Businesses can then deploy those agents for customer support, internal knowledge access, or other workflows. The platform also provides API access and integrations, making it more suitable for production business deployments than simple chatbot builders.
How it works
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1
Add Your Knowledge
Connect websites, documents, videos, audio, knowledge bases, or supported business data sources to create the agent's knowledge base.
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2
Create Your Agent
Configure an AI agent around the indexed information and define how it should interact with users.
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3
Deploy the Agent
Embed the agent on a website, share it through a link, deploy internally, or connect through the available API.
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4
Monitor and Improve
Review conversations, update source content, refine the agent, and expand its connected knowledge as requirements change.
What you can do with CustomGPT
- Building customer support knowledge-base chatbots
- Deploying internal employee knowledge assistants
- Creating AI agents for documentation and research
- Turning websites into conversational support experiences
- Connecting business knowledge to AI applications
- Automating answers from large document collections
Pros & cons
Pros
- Supports websites, PDFs, Office files, audio, YouTube, and 1,400+ formats.
- Creates AI agents grounded in company-specific knowledge and content.
- Supports website embedding, shareable links, intranets, and API deployment.
- Integrates with Shopify, WordPress, Notion, Google Drive, Slack, and more.
- Supports multilingual knowledge bases across 90+ languages.
Cons
- Standard starts at $99/month, making it expensive for casual users.
- Premium costs $499/month when billed monthly.
- Query and content limits vary significantly between subscription tiers.
- Advanced white-labeling and automatic syncing require higher plans.
- Agent quality still depends on the completeness and accuracy of supplied knowledge.
Pricing
Paid
7-day free trial; Standard from $99/month; Premium from $499/month.
Alternatives to CustomGPT
Same-purpose swaps in this category.
Talkio AI
Chatbots & Assistants
AI language tutor for realistic speaking practice
From $10/month billed yearly; 7-day free trial
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Frequently asked questions
Is CustomGPT free to use?
CustomGPT offers a 7-day free trial with access to the selected plan before the paid subscription begins.
How much does CustomGPT cost?
Standard costs $99/month or $89/month annually, while Premium costs $499/month or $449/month annually. Enterprise pricing is custom.
What is CustomGPT best for?
It is designed for business knowledge assistants, customer support, internal information retrieval, and AI agents grounded in proprietary content.
What data can CustomGPT use?
CustomGPT can work with websites, PDFs, Office documents, YouTube videos, audio, podcasts, and more than 1,400 document formats.
oes CustomGPT provide an API?
Yes. Standard includes RAG API access, while Premium provides full API access and Enterprise adds broader custom deployment options.