Decision table
| Need | Pick | Price or limit (as listed 17 October 2026) | Verdict |
|---|---|---|---|
| AI agent that pays for itself per resolution | Intercom | Fin USD 0.99 per outcome; Essential USD 29 per seat billed annually | Best when chat volume is high |
| One suite for chat, email and phone | Zendesk | Suite Team USD 55 per agent a month billed annually | Pay more for breadth and routing |
| Free helpdesk for a tiny team | Help Scout | Free plan: 5 users, 1 inbox, 1 Docs site | Start free, add AI answers later |
| Cheapest AI agent per seat | Freshdesk | Growth USD 19 per agent billed annually; 500 AI sessions included | Lowest entry point with AI built in |
| Add AI to an existing helpdesk | Intercom | Fin standalone, about 50 outcomes minimum a month | Keep your helpdesk, add the agent |
The 4 tools on the same fields
Intercom
- Best for: SaaS, ecommerce and app companies with most contacts in chat.
- Main limitation: a broad outcome definition means quiet customers can count as resolved, so audit transcripts.
- Price or plan limits: Essential USD 29, Advanced USD 85 and Expert USD 132 per seat a month billed annually; Fin USD 0.99 per outcome; Copilot add-on USD 29 per agent a month billed annually, as listed on 17 October 2026.
- AI pricing unit: an outcome, charged at most once per conversation and refunded if the conversation reopens.
Intercom's Fin AI agent cost USD 0.99 per outcome on all plans, according to Intercom's pricing page checked 17 October 2026.
Zendesk
- Best for: larger support operations with several channels and skills-based routing.
- Main limitation: the entry Support Team plan does not include AI Agents; they start at Suite Team.
- Price or plan limits: Zendesk's pricing page lists Support Team at USD 19 per agent a month billed annually (USD 25 monthly), Suite Team at USD 55 (USD 69 monthly) and Suite Professional at USD 115 (USD 149 monthly). The free trial gives 14 days of Suite Professional.
- AI pricing unit: an automated resolution, a request resolved by the AI agent without escalation to a human.
Zendesk Suite Team, the first plan with AI Agents, cost USD 55 per agent a month billed annually, according to Zendesk's pricing page checked 17 October 2026.
Help Scout
- Best for: small and mid-sized teams that answer mostly by email and want a simple shared inbox.
- Main limitation: AI Answers is an add-on, and unlimited AI drafts start at the Plus plan.
- Price or plan limits: Help Scout's pricing page lists a Free plan (5 users, 1 inbox, 1 Docs site), Standard at USD 25 per user a month, Plus at USD 45 and Pro at USD 75. AI Answers costs USD 0.75 per resolution, with a 3-month free trial.
- AI pricing unit: a resolution, billed monthly.
Help Scout's AI Answers add-on cost USD 0.75 per resolution with a 3-month free trial, according to Help Scout's pricing page checked 17 October 2026.
Freshdesk
- Best for: cost-conscious teams that want an AI agent on day one.
- Main limitation: sessions beyond the included 500 cost USD 49 per 100, which adds up quickly at volume.
- Price or plan limits: Freshdesk's pricing page lists Growth at USD 19 per agent a month billed annually, Pro at USD 55 and Enterprise at USD 89. Freddy AI Copilot is USD 29 per agent a month on higher plans, and the 14-day trial runs on Enterprise.
- AI pricing unit: a session, with the first 500 included.
Freshdesk Growth cost USD 19 per agent a month billed annually with 500 Freddy AI Agent sessions included, according to Freshdesk's pricing page checked 17 October 2026.
Compare the billing unit, not the headline price
An outcome, an automated resolution and a session are three different things, so USD 0.75 is not automatically cheaper than USD 0.99.
Intercom counts an outcome when a customer confirms resolution, stops asking after Fin replies, or Fin completes a workflow including a handoff. Zendesk counts a request the AI agent resolved without escalation. Freshdesk counts sessions. Before you sign, ask each vendor for a sample month of your own tickets priced under its definition, and check how handoffs and reopened tickets are billed.
Disclosure and liability rules
Two documented rules shape how you deploy a support bot.
- Tell people it is AI. Article 50 of the EU AI Act requires AI systems that interact directly with people to be designed so those people are informed they are dealing with an AI system, unless it is obvious. The Act's application article makes this apply from 2 August 2026.
- You own what the bot says. In February 2024, a British Columbia tribunal ordered Air Canada to pay a customer CAD 812 after its website chatbot gave wrong bereavement fare advice. CBC's report quotes the tribunal: Air Canada "did not take reasonable care to ensure its chatbot was accurate."
In practice: label the bot, ground it only in approved help articles, and make the path to a human obvious. Support transcripts also hold personal data, so run each vendor through our AI tool privacy checklist.
How to choose
- Export 200 recent tickets and tag the top ten question types.
- Load your help center into two candidates' trials.
- Replay 50 real questions and mark each answer correct, partly correct or wrong.
- Price a month under each vendor's billing unit using those ticket volumes.
- Test the handoff to a human agent, including what context carries over.
General-purpose assistants are compared in our AI chatbot rankings, and tools that take actions on their own in our AI agent picks. If most support happens by email, see our AI email assistant guide. Teams serving several languages should read our AI translation tool rankings, and owners comparing costs can use our AI tools for small business guide.
How we rank
We compared AI agent features, billing units and their definitions, seat prices, trials, channel coverage and data terms, as listed on each vendor's pricing pages on 17 October 2026, plus the EU AI Act text. Our ranking method explains how documented pricing and limits shape each verdict.
Frequently asked questions
How much does Intercom Fin cost? USD 0.99 per outcome, on any Intercom plan or alongside another helpdesk, as listed on 17 October 2026.
Does Zendesk include AI agents on every plan? No. Zendesk lists AI Agents from Suite Team at USD 55 per agent a month billed annually, not on Support Team.
Is there a free AI helpdesk? Help Scout has a free plan for 5 users with 1 inbox, and its AI Answers add-on includes a 3-month free trial.
What counts as a resolution for AI support billing? It depends on the vendor. Intercom bills outcomes, Zendesk bills automated resolutions without escalation, and Freshdesk bills sessions.
Do I have to tell customers they are chatting with AI? In the EU, yes, unless it is obvious. Article 50 of the AI Act requires people to be informed they are interacting with an AI system.
Can a company be liable for wrong answers from its chatbot? Yes. A British Columbia tribunal held Air Canada responsible for its chatbot's wrong fare advice in 2024.
Which AI support tool is cheapest for a small team? Freshdesk Growth at USD 19 per agent a month billed annually includes 500 AI agent sessions, and Help Scout's free plan costs nothing.