Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
#1CustomGPT.ai records 96,030 monthly visits with -16.5% month-over-month growth and Freemium, Free Trial, Paid, Contact for Pricing pricing. OpenAssistantGPT records 13,468 monthly visits with +10.3% growth and Freemium, Paid, Contact for Pricing pricing.

Open-source platform for building no-code RAG AI chatbots
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | customgpt.ai | openassistantgpt.io |
| Pricing Model | Freemium, Free Trial, Paid, Contact for Pricing | Freemium, Paid, Contact for Pricing |
| Monthly Visits | 96.03K (96,030) | 13.47K (13,468) |
| MoM Traffic Delta | -18.96K (-16.5%) | +1.25K (+10.3%) |
|---|
| Primary Market & Share | 🇺🇸 United States (14.4%) | 🇺🇸 United States (16.6%) |
|---|
| Direct Visits / mo | 42.22K | 5.48K |
|---|
| User Rating | 4.3 | 4.2 |
|---|
| Supported Platforms | Website | Website |
|---|

No-code AI agents trained on your own business content
Responses are generated from your supplied content only, with a citation link attached to each answer so readers can check the source.
Create and configure custom GPT agents from a browser interface without writing any code or maintaining your own retrieval stack.
Ingest websites, help centers, PDFs, Office files, YouTube videos, podcasts and audio, across 1,400+ document formats and integrations like Google Drive and Notion.
Programmatic access to your agents through a documented REST API and SDK for embedding answers into your own applications.

Open-source platform for building no-code RAG AI chatbots
Create a RAG chatbot by giving a URL to crawl or uploading files; no coding or API plumbing required.
Built on the OpenAI Assistants and Responses APIs, supporting models such as GPT-4o and GPT-3.5 with improved tool calling.
Let the bot query API endpoints with specific parameters and search the web so answers stay current.
SAML/SSO authentication for private employee chatbots, lead capture, file attachments, and chat disclaimers.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
#1AI-first customer support platform with a shared inbox built in

Custom AI agents trained on your documentation and knowledge base
Build custom AI agents and support chatbots trained on your own data, across every channel

Custom AI support chatbots trained on your own website content
No-code AI agents that answer, act and hand off across every channel
No-code AI agents that resolve support and sales conversations
Build a custom AI chatbot for your website in minutes - trained on your own data

No-code AI support agents that answer — and act — for your customers

No-code AI chatbots trained on your own website and files
AI customer support chatbot trained on your site, docs and apps
No-code AI agents for customer support, sales and internal ops
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Custom AI agents trained on your documentation and knowledge base
Build custom AI agents and support chatbots trained on your own data, across every channel
Custom AI support chatbots trained on your own website content
No-code AI agents that resolve support and sales conversations
Build a custom AI chatbot for your website in minutes - trained on your own data
No-code AI support agents that answer — and act — for your customers
No-code AI chatbots trained on your own website and files
AI customer support chatbot trained on your site, docs and apps
No-code AI agents for customer support, sales and internal ops