Prices and plan details were checked on the vendors' own pricing pages on September 26, 2026 and can change — always confirm on the vendor's site. CustGPT publishes this page and is one of the products compared. Product names are trademarks of their respective owners; CustGPT isn't affiliated with or endorsed by them.
People usually look for a SiteGPT alternative for one of three reasons: the total price once add-ons like branding removal are included, a feature they need that isn't on their plan, or a different pricing model that fits their volume better. This list covers the main options, with honest notes on where each one is strongest.
SiteGPT alternatives at a glance
| Tool | Starting price | Best for |
|---|---|---|
| CustGPT | $19.99/month | Same limits as SiteGPT for less, plus a $19.99 plan for small sites |
| Chatbase | Free; paid from $40/month | Voice, telephony and many agents |
| DocsBot | Free; paid from $49/month | Documentation-heavy knowledge bases |
| Chatling | Free; paid from $25/month | Low-cost plans with two chatbots |
| CustomGPT.ai | $99/month | Very large document libraries |
| Intercom Fin | $29/seat + $0.99/outcome | An all-in-one support suite |
1. CustGPT — best like-for-like SiteGPT alternative
CustGPT matches SiteGPT's chatbot, page, message and seat limits on every plan, for $10 a month less, and includes branding removal on Growth and Scale (a $39/month add-on on SiteGPT).
- Pricing: Basic $19.99, Starter $49, Growth $119, Scale $419 per month; about 40% less billed yearly. 7-day free trial.
- Includes: website crawling and file uploads, answers with sources, premium models (Claude Sonnet 5, GPT-5.6 Sol, Gemini 3.1 Pro), actions that call your APIs, live human handoff, lead capture, Telegram, Slack, webhooks and a REST API.
- Consider if: you want the SiteGPT experience with more included for less.
See CustGPT vs SiteGPT for the full breakdown.
2. Chatbase — best for voice and many agents
Chatbase offers a free plan and paid tiers from $40 (700 message credits) to $500 (15,000 credits). Its Standard plan ($150) includes 18 agents plus help desk, voice, telephony and outbound campaigns. Removing branding is a $99/month add-on.
- Consider if: you need voice or phone agents, or many separate agents on one plan.
3. DocsBot — best for documentation
DocsBot has a free plan and paid plans from $49 (Personal: 1 bot, 5,000 source pages, 5,000 AI credits) to $499 (Business: 10 bots, 60,000 credits), with actions per bot and a 14-day money-back guarantee.
- Consider if: your AI mainly answers questions about product documentation.
4. Chatling — low-cost with two chatbots
Chatling starts free, with paid plans from $25/month (1,750 AI credits, 2 chatbots) up to $295/month (35,000 credits, 7 chatbots). White-label branding is an add-on.
- Consider if: you want two chatbots on a small budget.
5. CustomGPT.ai — best for huge document libraries
CustomGPT.ai costs $99/month for 1,000 queries and 10 agents, or $499 for 5,000 queries and 25 agents, with very large document and storage limits.
- Consider if: you're indexing a very large internal library and expect modest question volume.
6. Intercom Fin — best all-in-one suite
Intercom combines a full help desk with its Fin AI agent, priced at $29–$132 per seat per month plus $0.99 per AI outcome.
- Consider if: you want to move your entire support operation onto one platform.
Point CustGPT at your site and get an AI agent that answers from your content, with sources. Every plan starts with a 7-day free trial.
How to choose
- Estimate monthly questions — this drives cost on every platform.
- Decide whether your own branding matters — add-on prices vary from $0 to $99 a month.
- List must-have features — handoff, actions, voice, specific integrations.
- Trial two tools on the same content and compare answers to your 20 most common questions.
Frequently asked questions
What is the best alternative to SiteGPT?
For the same limits at a lower price with more included, CustGPT is the closest like-for-like alternative. Chatbase suits voice agents, DocsBot documentation, Chatling tight budgets and Intercom teams wanting a full suite.
Is there a free SiteGPT alternative?
Chatbase, DocsBot and Chatling have free plans with small limits. CustGPT offers a 7-day free trial on every plan.
Which SiteGPT alternative is cheapest?
CustGPT has the lowest entry price at $19.99 a month (Basic), and for the same capacity as SiteGPT's plans it is $10 a month cheaper on each tier.