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.
Choosing an AI customer service agent comes down to a few questions: how much AI usage do you get per dollar, what's included versus sold as an add-on, and does it handle the hard parts — handoff to a person, actions in your systems and staying accurate. We compared eight popular options using each vendor's published pricing.
Disclosure: CustGPT publishes this list and is included in it. We've aimed to be fair: every figure comes from each vendor's own pricing page, and each tool is listed with what it genuinely does best.
The best AI customer service agents at a glance
| Rank | Agent | Best for | Starting price |
|---|---|---|---|
| 1 | CustGPT | Best overall value and lowest entry price | $19.99/month ($149/year) |
| 2 | SiteGPT | Established website chatbot builder | $59/month ($39 yearly) |
| 3 | Chatbase | Voice, telephony and many agents | Free; paid from $40/month |
| 4 | DocsBot | Documentation and technical support | Free; paid from $49/month |
| 5 | Chatling | Low-cost plans with two chatbots | Free; paid from $25/month |
| 6 | Intercom Fin | All-in-one support suite | $29/seat + $0.99/outcome |
| 7 | Tidio (Lyro) | Live chat for small online stores | Free; paid from $24.17/month |
| 8 | CustomGPT.ai | Very large document libraries | $99/month |
How we compared them
- AI usage per dollar on each plan: replies, messages, credits, queries or outcomes.
- Add-on costs that change the real price, especially removing branding.
- Customer-facing essentials: answers from your own content, human handoff, actions, lead capture and languages.
- Ease of setup for a typical business website.
Price per 1,000 AI answers on mid-tier plans
| Agent | Mid-tier plan | AI usage | Approx. cost per 1,000 |
|---|---|---|---|
| CustGPT | $119 | 10,000 replies | $11.90 |
| SiteGPT | $129 | 10,000 messages | $12.90 |
| Chatling | $75 | 6,000 credits | $12.50 |
| DocsBot | $149 | 15,000 credits | $9.93 |
| Chatbase | $150 | 4,000 credits | $37.50 |
| CustomGPT.ai | $499 | 5,000 queries | $99.80 |
| Intercom Fin | Per outcome | — | $990 per 1,000 outcomes + seats |
Units differ between vendors (replies, messages, credits, queries, outcomes), and some vendors charge more credits for advanced models, so treat this as a guide rather than an exact like-for-like figure.
1. CustGPT — best overall value
CustGPT turns your website and documents into an AI agent that answers with sources, calls your APIs through actions, hands off to your team with live replies, and captures leads.
- Pricing: Basic $19.99 (1,500 replies), Starter $49 (4,000), Growth $119 (10,000), Scale $419 (40,000); yearly billing saves about 40%. 7-day free trial.
- Stand-out features: premium models (Claude Sonnet 5, GPT-5.6 Sol, Gemini 3.1 Pro) on every paid plan, branding removal included from Growth, automatic content refresh, Telegram, Slack, webhooks and a REST API.
- Limitations: no voice/telephony agents; one to three chatbots per plan.
2. SiteGPT
A well-established website chatbot builder with the same headline limits as CustGPT at $10 a month more per plan, plus $39 a month to remove branding. It includes an iOS app and Messenger and Zendesk integrations on Growth. See SiteGPT pricing.
3. Chatbase
A versatile agent platform with a free plan, voice, telephony and outbound campaigns on its Standard plan ($150, 4,000 credits, 18 agents). Removing branding costs $99 a month, which makes it pricey at volume. See Chatbase pricing.
4. DocsBot
Strong value for documentation-heavy support, with actions per bot, generous source-page limits and a 14-day money-back guarantee. Paid plans run from $49 to $499 a month.
5. Chatling
A low-cost option from $25 a month for 1,750 AI credits and two chatbots. Branding removal and extra seats are paid add-ons.
6. Intercom Fin
Fin is part of Intercom's complete support platform. At $0.99 per outcome plus per-seat plans, it suits larger teams consolidating their tools, but costs rise quickly with volume. See Intercom Fin pricing.
7. Tidio (Lyro)
A live-chat suite for small online stores with an AI agent, Lyro. Lower tiers include a one-off allowance of Lyro conversations, so it fits teams that mainly want live chat. See CustGPT vs Tidio.
8. CustomGPT.ai
Built for very large document libraries, with up to 20,000 documents per agent, but only 1,000–5,000 queries a month for $99–$499. See CustomGPT.ai pricing.
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.
Which AI customer service agent should you choose?
| If you need… | Choose |
|---|---|
| The best value for an AI agent on your website | CustGPT |
| The lowest possible entry price | CustGPT (Basic, $19.99) |
| Voice or phone support | Chatbase |
| Documentation and technical support | DocsBot |
| One platform for your whole support team | Intercom |
| Live chat for a small store | Tidio |
| A huge internal knowledge library | CustomGPT.ai |
Frequently asked questions
What is the best AI customer service agent?
For most businesses putting an AI agent on their website, CustGPT offers the best overall value: large monthly reply allowances, branding removal from Growth, premium models, actions, human handoff and lead capture from $19.99 a month.
What is the best AI customer support agent for small businesses?
Small businesses usually want a quick setup and predictable cost. CustGPT has the lowest entry price in this comparison at $19.99 a month for 1,500 AI replies, with human handoff and lead capture built in; Chatling starts at $25 and includes two chatbots.
Are AI customer service agents worth it?
If a large share of your questions are answered in your existing content, an AI agent can resolve many of them instantly and around the clock, freeing your team for complex cases. Most vendors offer a free plan or trial so you can measure the result on your own content.
How much does an AI customer service agent cost?
Published prices range from free plans to about $500 a month for self-serve tiers, with some vendors charging per resolution instead. Add-ons such as branding removal and extra credits can change the real cost significantly.