CustomGPT

The whole build happens in a dashboard, not a code editor. You add a source, wait for indexing, then adjust how the agent opens and how it looks. CustomGPT's own FAQ says a working agent can be set up in about two minutes, and the entry plan is aimed at exactly this kind of pilot: one or two agents, tested before a bigger commitment. If you can upload a file and paste a URL, you can ship a chatbot here.

Every reply links back to the passage it came from, which is what separates a custom chatbot from a raw language model. You can click the citation and read the source yourself, so a wrong answer is easy to spot. The company builds its accuracy claim around anti-hallucination controls and says it outperformed OpenAI on answer accuracy in an industry RAG benchmark. That's the vendor's own result, but the citation feature lets you check it on your content.

CustomGPT reads more than 1,400 document formats, from PDF and Office files to Google Docs, plus audio and video. It also connects to sites and tools such as Google Drive, Confluence, Notion, SharePoint, Zendesk, HubSpot, Shopify and Wix, and a sitemap crawl can index an entire website and refresh it on a schedule. Recent additions cover YouTube and Vimeo videos, podcasts and metadata, so training data isn't limited to text files.

You can publish the chatbot as a website widget, a public or private share link, or a live chat handoff, and reach it through the RAG API and SDK. The integration list covers Zapier, Slack, WordPress, Shopify, Wix and Twilio, so the agent can both pull data from your tools and answer queries inside them. On Premium and above you can white-label the widget and drop the CustomGPT branding.

The platform answers only from indexed content and shows its sources, which cuts down on invented answers. The company frames this as its anti-hallucination AI approach, built to keep replies tied to your material. CustomGPT also states it never trains its models on your data and holds SOC 2 Type 2 compliance and GDPR alignment, with SSL encryption in transit. Premium adds OCR for scanned documents, PII removal and Sitemap Auto-Sync, features a support team handling sensitive material tends to ask for first.

The model you can run depends on the tier. Standard uses the Optimal capability, Premium adds Speed, Accuracy and Understanding options, and Enterprise unlocks the full selector, which the company lists as including GPT-5.4, Claude Opus and Gemini. So moving up a plan changes which model answers your users and how fast or how precise it runs, on top of the higher limits.

The dashboard shows how the agent is used, with basic analytics on Standard and advanced and Insight Analytics on higher tiers. Premium adds Explore Analytics, and the chatbot pricing documentation stresses watching monthly query volume against real usage rather than guessing from site traffic. For a team deciding whether to stay on Standard or move up, that usage view is the number to watch.