Zendesk AI agents, and Deacon for founders without a helpdesk

Zendesk’s AI agents come with every Zendesk plan, from $19 an agent a month on yearly billing, or $25 month to month, though on that plan they only answer email. Chat on your site starts on Suite Team, at $55 an agent a month yearly or $69 month to month, and each request the AI resolves past a small allowance is billed. Deacon is an AI customer support agent for founders who answer support themselves. It answers your customers in seconds from your own docs, without a helpdesk to run, and shows you what they’re stuck on and what they want next. There’s a free plan, and it needs no card.

Zendesk’s prices read on zendesk.com/pricing on 23 September 2026

Deacon or Zendesk, and who each one is for

Choose Deacon if

  • You answer support yourself and have no helpdesk to put an AI agent in
  • You want answers in seconds from your docs, and an honest “I don’t know” when they don’t cover it
  • You want a bill that stops at your plan’s price, with no overage
  • You want to see what customers ask for, on every plan
  • You want a free plan that doesn’t end, with no logo to pay to remove

Choose Zendesk if

  • A team of agents works your tickets together, with routing and service levels
  • Customers reach you by email, messaging apps, social channels and phone
  • You need the AI to act in your systems and follow procedures you set
  • You want a help centre and community forums alongside the helpdesk
  • You’ve raised funding and qualify for Zendesk for Startups

Try Deacon for free

Install Deacon

Deacon and Zendesk, feature by feature

Built for

Deacon
Founders and small teams who answer support themselves
Zendesk
Support teams whose agents work tickets together in a helpdesk

What you get

Deacon
An AI agent on your website, every conversation saved, topics and website analytics
Zendesk
A helpdesk with ticketing and AI agents on every plan. Suite plans add messaging, live chat, voice and a help centre

Free plan

Deacon
Yes, with every feature, no card and no end date
Zendesk
No. A 14-day trial of Suite Professional, and a startups programme for funded startups

How it’s priced

Deacon
A plan price with its seats included. Nothing is billed past the plan’s answers, and no plan upgrades itself
Zendesk
Per agent a month. $19 on Support Team, $55 on Suite Team, $89 on Suite Growth and $115 on Suite Professional on yearly billing, or $25, $69, $115 and $149 monthly

The AI’s meter

Deacon
A set number of answers on every plan, the free one included
Zendesk
Automated resolutions. The pricing page includes 5 to 15 an agent a month, and more cost $2.00 each, or $1.50 committed in advance. The help centre gives the allowance as $2 to $10 an agent a month instead

Past the allowance

Deacon
Visitors get a short decline and are asked for their email, unless they’ve already left it. Nothing more is billed
Zendesk
By default the AI keeps answering and the overage is billed monthly. Turn overage off and the AI pauses

Answers

Deacon
In seconds, at any hour and in the visitor’s language, from your website, files, pasted text and the answers you write
Zendesk
From your help centre and other knowledge sources, on messaging, email and voice

When it can’t answer

Deacon
Says it doesn’t know, asks for the visitor’s email, and emails you when they leave it
Zendesk
Escalates to your agents, routed by their status and capacity

Talking to a person

Deacon
Reply from the dashboard, and your words appear in the visitor’s open chat under your name
Zendesk
Agents reply from Zendesk’s workspace. Routing by skill and priority starts on Suite Professional

Getting better

Deacon
Each answer you write becomes part of what Deacon knows, and Save & check shows the reply it now gives
Zendesk
Agents write new help centre articles from templates, from Suite Growth up

What customers ask about

Deacon
Topics group questions, count who asked and label most of them, on every plan
Zendesk
Prebuilt analytics dashboards on every plan, and intelligent triage classifications from Suite Professional

“Powered by” branding

Deacon
None, on any plan
Zendesk
The Zendesk logo stays on the messaging widget unless you’re on Suite Enterprise

Website analytics

Deacon
Included, from the same script, with visitors, sources, goals, funnels and JavaScript errors
Zendesk
Google Analytics for your help centre, from Suite Team

Channels and actions

Deacon
A chat widget on your website. It answers questions and hands the rest to you
Zendesk
Email, web widget and mobile SDKs on every plan, with messaging, social channels and voice from Suite Team. AI agents take actions through integrations

Zendesk’s prices and plan features are from zendesk.com/pricing, and the allowance in money and how overage works are from its help centre, both read on 23 September 2026.

Why Deacon works better for a founder

The AI without a helpdesk to buy first

Zendesk’s AI agents come inside a Zendesk plan, priced per agent seat, and they hand conversations to agents working tickets in its workspace. If you answer support yourself, that’s a helpdesk to buy and set up before the AI answers anyone. Deacon is the AI on its own. Paste one script tag, add your docs, and it starts answering. When a visitor asks for a person or leaves their email, you get an email, and your reply from the dashboard appears in their chat if it’s still open.

No overage to remember to switch off

Zendesk bills its AI agents by the automated resolution. Each plan includes a small allowance, and past it the AI keeps answering by default, at $2.00 a resolution pay as you go, with the overage billed monthly. Turning overage off pauses the AI and sends requests to your agents. Deacon charges a plan price. Nothing is billed past your plan’s answers, and no plan upgrades itself. If a month’s answers run out, visitors get a short reply saying Deacon can’t look into it right now, and are asked for their email unless they’ve already left it.

What customers ask about, on every plan

Zendesk’s intelligent triage classifications start on Suite Professional, at $115 an agent a month on yearly billing. Deacon keeps every conversation, groups the questions into topics, counts how many people asked, and labels most of them as a feature ask, a bug report, a how-to and so on. That’s on every plan, the free one included, so you know what to fix and what to build next. The same script shows your visitors, where they came from and which goals they reach.

Your answers make Deacon better

Deacon answers from your own content in seconds, in the visitor’s language. When your docs don’t cover a question, it says it doesn’t know rather than guess, and the question waits in your dashboard with an Answer this button. Write the answer and press Save & check. Deacon asks itself the question again, shows you its new reply and tells you how many other open questions your answer covers. Every answer becomes part of what it knows, so it needs you less over time.

When Zendesk is the better choice

For a support team, Zendesk has a great deal that Deacon doesn’t. Tickets are routed by agent status and capacity, and from Suite Professional by skill and priority. Suite plans put messaging, live chat, social channels and voice in one workspace, with help centres, and IVR from Professional. Its AI agents answer on messaging, email and voice, act in the systems you authorise and follow procedures you write. Deacon answers on your website and hands the rest to you.

Its meter has points in its favour too. Zendesk’s pricing page says you pay only for requests the AI resolved without escalating to a person, and a committed resolution costs $1.50 against $2.00 pay as you go. You can switch overage off to cap the bill. And if you’ve raised funding, Zendesk for Startups offers 6 months free, or up to 2 years through its VC and accelerator partners.

If several people share your support queue, Zendesk is built for them. If it’s you answering customers between releases, Deacon is the better fit.

Questions about Deacon and Zendesk

They come with every Zendesk plan, and Zendesk’s pricing page charges per agent a month, from $19 on Support Team with yearly billing, or $25 month to month. On Support Team they answer email, and chat on your site starts on Suite Team, at $55 with yearly billing or $69 month to month. That page includes 5 automated resolutions an agent a month on Support Team and Suite Team, 10 on Suite Growth and Professional and 15 on Enterprise, up to 10,000 a year. More cost $2.00 each as you go, or $1.50 when you commit in advance. Zendesk’s help centre describes a newer model, in which the allowance is a pool of $2, $5 or $10 an agent seat a month, depending on the plan. Its note on the change says accounts opened while it rolls out get negotiated tier pricing. Zendesk AI pricing works through a month for a team of one or two. Deacon has a free plan with every feature, no card and no end date, and each paid plan is one price with its seats included. Its figures are on the pricing page.

Zendesk bills a request its AI agent resolved without escalating to a person. Since 18 May 2026, its resolution tiers have a language model read the conversation once it ends, which on messaging is 2 hours after the last message by default. Only a verified resolution counts against your allowance, and a contained resolution or an assisted escalation doesn’t. Deacon counts each reply it writes on your live site as one answer, and an “I don’t know” counts too. Chats in its Playground never count.

No. Deacon answers on your site by itself, day and night, and you reply to the conversations that need you from its dashboard. When a visitor leaves their email or asks for a person, you get an email. There are no tickets, queues or agent seats to set up.

Open the conversation in the dashboard and send a reply. Deacon stops answering there, and if the visitor still has the chat open, your words appear in it under your first name and your company’s. If they’ve left, your reply is emailed to them, provided they gave an address in that conversation. One button hands the conversation back to Deacon.

No. Deacon is a chat widget on your website, with no email inbox, phone line, messaging apps or social channels. Zendesk’s AI agents work on messaging, email and voice, and its Suite plans bring those channels into one workspace.

No. Deacon answers questions from your content and hands the rest to you, and it takes no actions in other systems. It always declines questions about a visitor’s own account, invoice or data. Zendesk’s AI agents can act in systems you authorise and follow procedures you set up. The best AI agents for customer service compares nine agents by what each one can act on and how it charges.

On the messaging widget, the one its AI agents chat in, only Suite Enterprise can hide it, Zendesk’s help centre says. On the Classic widget and the help centre, any plan can. Deacon has no “powered by” line on any plan, so there’s nothing to pay to remove.

For a while, if you’ve raised money. Zendesk for Startups is open to new customers with outside funding, from angel rounds to Series B. The standard term is 6 months, and 1 or 2 years come through Zendesk’s VC and accelerator partners. When it ends, you choose a paid plan. Deacon’s free plan needs no funding round and has no end date.

It builds each answer from the passages it finds in your own content for that question, not from what the model learned elsewhere. When those passages don’t cover it, Deacon tells the visitor it doesn’t know and asks for their email. If an answer comes from a page on your site, it usually links that page, so your customer can check it.

Try Deacon for free

Add your docs and ask Deacon your customers’ questions in the Playground before it goes on your site. There’s no helpdesk to buy first, and the free plan needs no card.

See what Deacon does, compare it with Fin AI, weigh more Zendesk competitors, see Zendesk’s pricing and what Zendesk’s AI costs, or read the plans and prices. Zendesk is also set against Intercom, Freshdesk, HubSpot, Salesforce, Gorgias, Zoho Desk and Tidio on pages of their own.

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