How we make this list: we compare pricing pages, product documentation and public user reviews. Ratings come from G2, Capterra or Trustpilot, with the date we checked them.
Key takeaways
- Fin is the best AI chatbot for customer service for Intercom teams, at $0.99 per resolved outcome with a native human handoff.
- Zendesk AI suits teams already on Zendesk, with AI agents priced per automated resolution on top of Suite plans.
- Tidio with Lyro AI is the best budget pick for small ecommerce sites, with a free plan and predictable flat pricing.
- Ada suits high-volume enterprises that need omnichannel automation, while Freshchat suits Freshworks teams.
- Gorgias suits Shopify brands, and HubSpot Customer Agent suits teams already on HubSpot.
- Chatbase suits simple website and docs question bots, with message credits.
- AI chatbots make mistakes, so every tool here needs a clear human handoff, approved knowledge sources, and regular review of answers. A chatbot that answers from unapproved web content will eventually invent a policy, a price, or a refund rule, and customers will hold your business to it.
Quick comparison
| Tool | Best for | Starting price | Free plan |
|---|
 Fin | Intercom teams | $29 per seat per month | No |
 Zendesk AI | Zendesk teams | $55 per agent per month | No |
 Tidio | Small ecommerce sites | $29 per month | Yes |
 Ada | High-volume enterprise | See website | No |
 Freshchat | Freshworks teams | $19 per agent per month | Yes |
 Gorgias | Shopify brands | $10 per month | No |
 HubSpot Customer Agent | HubSpot teams | See website | Yes |
 Chatbase | Website and docs bots | $40 per month | Yes |
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The best ai chatbots for customer service
#1Fin
Best for: Intercom teams4.5/5 on
G2 (3,868 reviews, checked Oct 2026)
Visit fin.com
Starting price$29 per seat per month
Free planNo
Fin is the AI agent from Intercom, now operating under the Fin brand after Intercom rebranded in 2026, with Salesforce acquiring Fin in September 2026. It answers from approved support knowledge, with configurable content controls, and charges $0.99 per Fin outcome on top of an Essential plan from $29 per seat per month. The native Intercom handoff sends hard questions to agents with full context, and Fin also works with Salesforce, HubSpot, and other helpdesks.
Per-outcome pricing is predictable per resolution but adds up at volume: 1,000 resolutions a month costs $990 before seat fees. There is no free plan, though a trial is offered. For Intercom teams that want the most predictable AI bill, Fin is clearly the top pick.
What we like- $0.99 per outcome
- Native Intercom handoff
- Works with other helpdesks
Watch out for- Per-outcome cost adds up at volume
- No free plan
- Platform seat fee extra
Starting price$55 per agent per month
Free planNo
Zendesk AI adds AI agents, ticket routing, summarization, and contextual replies to the Zendesk Suite, starting at $55 per agent per month for Suite Team billed annually. Automated resolutions cost near $1.50 each, folded into Suite plans as of mid-2026, with pay-as-you-go rates higher. The native handoff keeps tickets, context, and agent workflows in one place.
The combined seat plus resolution cost is high for small teams, and there is no free plan, though a trial is offered. For teams already on Zendesk with complex ticket workflows, staying on Zendesk AI is clearly the natural choice.
What we like- Native ticket workflows
- Omnichannel resolution
- Agent copilot tools
Watch out for- Per-resolution cost near $1.50
- Suite seat fee extra
- No free plan
#3Tidio
Best for: Small ecommerce sites4.6/5 on
G2 (1,967 reviews, checked Oct 2026)
Visit tidio.com
Starting price$29 per month
Free planYes
Tidio suits small ecommerce and small business sites, with a free plan covering 50 conversations and paid plans from $29 per month. Lyro AI, the AI agent add-on from $32.50 per month, automates up to 67 percent of common queries, with a drag-and-drop flow builder for custom paths. Chat, email, Messenger, and Instagram land in one inbox.
Lyro is an add-on rather than included, and complex enterprise workflows are out of scope. For small stores that want the cheapest way to try an AI agent, Tidio is clearly the best budget pick by far indeed.
What we like- Free plan
- Lyro AI from $32.50 per month extra
- Drag-and-drop flow builder
Watch out for- AI automates up to 67 percent of queries, not all
- Lyro is an add-on
- Limited for enterprise
#4Ada
Best for: High-volume enterprise4.6/5 on
G2 (173 reviews, checked Oct 2026)
Visit ada.cx
Starting priceSee website
Free planNo
Ada automates support across voice, email, chat, and messaging for high-volume enterprises, with strong knowledge ingestion and multilingual natural language processing. The reasoning engine handles multi-turn conversations and hands off to agents with context. Ada suits regulated industries like finance, healthcare, and tech.
No public numeric price is published, so budget requires a vendor quote, and setup work for the knowledge base is significant. There is no free plan. For enterprises with high volume and strict compliance needs, Ada is a leading choice.
What we like- Voice, email, chat, and messaging automation
- Multilingual support
- Strong knowledge ingestion
Watch out for- No published price
- Enterprise focus
- Setup work for knowledge base
Starting price$19 per agent per month
Free planYes
Freshchat, part of Freshworks, offers a free plan for up to 10 agents and Growth from $19 per agent per month, with 500 Freddy AI Agent sessions included on the Omni Growth plan. The no-code chatbot builder and omnichannel inbox cover web, WhatsApp, Instagram, and email, with AI intent detection and bot handoff.
Freddy sessions beyond the allowance cost extra, and AI depth is less than Fin or Zendesk. For teams already on Freshworks, Freshchat is the natural AI chatbot pick.
What we like- Free plan up to 10 agents
- Freddy AI agent sessions included on Growth
- Omnichannel inbox
Watch out for- Freddy sessions extra beyond allowance
- AI depth less than Fin or Zendesk
- Freshworks focus
#6Gorgias
Best for: Shopify brands4.6/5 on
G2 (569 reviews, checked Oct 2026)
Visit gorgias.com
Starting price$10 per month
Free planNo
Gorgias is built for ecommerce brands on Shopify, Magento, and WooCommerce, with a unified inbox for email, chat, SMS, and social. The Starter plan costs $10 per month, with AI resolutions priced near $0.90 to $1.50 each depending on plan. Ticket-based pricing means no seat fees, which suits teams with many part-time agents.
There is no free plan, though a trial is offered, and the ecommerce focus limits non-retail use. For Shopify brands with a real support team, Gorgias is the best fit.
What we like- Deep Shopify integration
- AI resolutions near $0.90 each
- Ticket-based pricing, no seat fees
Watch out for- No free plan
- Ecommerce focus
- AI cost varies by plan
Starting priceSee website
Free planYes
HubSpot Customer Agent answers from HubSpot customer data and approved knowledge context, with marketing-to-service continuity across the HubSpot lifecycle. The free chatbot tier covers 2 users, while the AI agent sits on eligible tiers or credits, with Service Professional currently near $90 per seat per month. Native HubSpot escalation sends hard cases to agents with full CRM context.
Pricing depends on tier and credits, so check the current page before budgeting. For teams already on HubSpot, Customer Agent is the natural pick.
What we like- Uses HubSpot and approved knowledge context
- Native HubSpot escalation
- Free chatbot tier
Watch out for- AI agent needs eligible tiers or credits
- Service Professional near $90 per seat per month
- HubSpot focus
Starting price$40 per month
Free planYes
Chatbase builds AI support agents from a website, docs, or files, with a free plan covering 50 credits per month and paid plans from $40 per month. Bots embed on a website or in Slack, and the setup is fast compared with full helpdesk tools. It suits simple question-and-answer bots for product docs, FAQs, and onboarding.
Message credits cap usage, and helpdesk depth is limited, since Chatbase is standalone rather than a full ticket system. For teams that need a simple website bot rather than a full support suite, Chatbase is clearly the best lightweight pick by far indeed.
What we like- Free plan with 50 credits
- Fast setup from website or docs
- Embeds on site or Slack
Watch out for- Message credits cap usage
- Limited helpdesk depth
- Standalone focus
How we chose
We compared AI resolution pricing, platform seat fees, human handoff quality, knowledge grounding, channel coverage, and free plans. We also weighed how each tool reports resolution rates, since vendors define a resolution differently and a high claimed rate can hide failed conversations that still cost money. Tools that hide AI usage costs scored lower than tools with published per-resolution rates. We favored tools with native handoff and approved knowledge sources, since those reduce wrong answers. We did not test any tool hands-on, and prices come from vendor and comparison sources checked in 2026.
Buying guide: what to check before you buy
Start with your existing stack, since Fin suits Intercom teams, Zendesk AI suits Zendesk teams, Freshchat suits Freshworks teams, and HubSpot Customer Agent suits HubSpot teams. Next, model the total cost: multiply your monthly resolution volume by the per-resolution rate, then add seat fees, since the seat price alone misleads. Trial each shortlist tool with your ten most common questions, not a generic demo script, since a bot that nails order tracking but fails on plan changes tells you more than any feature list. Check the human handoff, since every AI bot needs a clear path to a person for refunds, account access, and complaints. Finally, review answers weekly at first, since AI chatbots can give confident wrong answers, and wrong answers about billing, safety, or medical topics carry real risk. Set up alerts for low-confidence answers and for topics that must always reach a human, such as refunds over a set amount, account closures, and safety complaints. That guardrail costs little and prevents the worst failures.
Frequently asked questions
What is the best AI chatbot for customer service?
Fin suits Intercom teams, Zendesk AI suits Zendesk teams, Tidio suits small ecommerce sites, and Gorgias suits Shopify brands. The best tool depends on your existing stack and volume.
How much do AI chatbots cost?
Most tools charge a seat fee plus a per-resolution fee, such as $0.99 per Fin outcome or near $1.50 per Zendesk resolution. Model both costs for your volume before you buy.
Can AI chatbots replace human agents?
No, AI chatbots handle routine questions well but need human handoff for refunds, account access, complaints, and complex cases. Plan for agents to handle the hard 20 to 30 percent of contacts.
Do AI chatbots make mistakes?
Yes, AI chatbots can give confident wrong answers, especially on questions outside their approved knowledge. Use approved sources, review answers regularly, and keep a clear handoff to humans.
What is the cheapest AI chatbot for small businesses?
Tidio offers a free plan and Lyro AI from $32.50 per month extra, which makes it the cheapest way for small stores to try an AI agent. Chatbase also offers a free plan for simple bots.
Sources we checked (0)
Is your product missing or out of date?
We review this list regularly. Vendors can request a listing, send updated pricing or ask about featured placement.
Shihab Mia · Founder, Rankite
Shihab has 5+ years in B2B and SaaS SEO. He writes Rankite's software buying guides from pricing pages, documentation and public user reviews. More about Shihab.