AI Tools

Best AI Customer Service Software in 2026

Twelve AI customer service platforms with verified pricing and AI billing models, ordered by vendor-published customer count.

AI customer service software is software that uses language models to answer, route or resolve customer enquiries across chat, email, messaging and voice, either on its own or alongside human agents. The category covers two kinds of product: established help desks that have added AI agents and agent-assist features to their ticketing systems, and newer AI-first vendors that sell autonomous agents to large companies, often priced by results rather than seats.

This list covers twelve products available to new customers in November 2026. Prices and AI usage terms are taken from each vendor's official pricing page; where a vendor publishes no prices the entry says so.

Contents
  1. Autonomous agents and agent assist
  2. Pricing models
  3. Methodology
  4. The list
  5. Comparison table
  6. Selection considerations
  7. Frequently asked questions
  8. See also

Autonomous agents and agent assist

AI in customer service takes two broad forms. Autonomous AI agents answer customers directly and close conversations without a person, handing off when they cannot. Agent-assist or copilot features help human agents by drafting replies, summarising threads and suggesting knowledge articles. Freshworks, for example, sells the customer-facing Freddy AI Agent and the agent-facing Freddy AI Copilot as separate items, and Help Scout distinguishes its AI Answers resolutions from the drafting and summarising tools included in its plans.

Pricing models

Three pricing models coexist. Seat pricing charges per human agent, with AI either included or metered. Resolution or outcome pricing charges only when the AI closes a conversation: Sierra describes being paid "only when we complete a task", with unresolved conversations generally not billed, Zendesk charges per automated resolution and Help Scout charges US$0.75 per AI resolution. Consumption pricing charges for sessions, interactions or credits whether or not they resolve: Freshdesk sells AI sessions in blocks of 100 and Salesforce meters Agentforce through Flex Credits.

Methodology

Products were included if they are sold for customer service, include an AI agent that can answer customers directly, and were available to new customers in November 2026. Prices, plan names and AI usage terms were read from each vendor's official pricing page; customer figures come from the vendors' own websites.

Entries are ordered by the customer count each vendor publishes, from largest to smallest. Counts are self-reported and, for multi-product vendors, cover all of the company's products, so they indicate the size of the installed base rather than adoption of AI features. Gorgias publishes only the number of brands on one plan, which is used as a lower bound. Vendors that publish no customer count are listed afterwards in alphabetical order. No product was tested hands-on, and the order is not a quality rating.

The list

1

HubSpot Service Hub

Best for: Companies standardised on HubSpot CRM

HubSpot was founded in 2006 by Brian Halligan and Dharmesh Shah, is headquartered in Boston, and reports about 306,000 customers across its products. Service Hub combines ticketing, a help desk, a knowledge base and the AI Customer Agent, all writing to the same CRM records used by HubSpot's marketing and sales products. A free tier covers two users; Starter is US$7 per seat per month on an annual commitment, Professional US$90 and Enterprise US$150. AI usage draws on monthly HubSpot Credits: 500 on Starter, 3,000 on Professional and 5,000 on Enterprise, with extra credits at US$0.010 each. Professional and Enterprise carry one-time onboarding fees of US$1,500 and US$3,500.

Founded
2006
Headquarters
Boston, Massachusetts, US
Pricing
Free (2 users); Starter US$7, Professional US$90, Enterprise US$150 per seat/month
Customers (all products)
About 306,000

Strengths

  • Service data shares records with marketing and sales
  • Low entry price for small teams

Limitations

  • Mandatory onboarding fees on upper tiers
  • Credits do not roll over between months
2

Zoho Desk

Best for: Cost-sensitive teams and existing Zoho users

Zoho Desk is the help-desk product of Zoho, and its pricing page states that more than 100,000 companies use it. It offers a free edition with three user licences and four paid editions: Express, Standard, Professional and Enterprise. Zoho prices by region; the Indian price list shows Express at ₹420 and Enterprise at ₹2,400 per user per month on annual billing. Professional includes Zia, Zoho's built-in generative, predictive and analytical AI, without a separate charge. AI agents can run on Zoho's own language model or on a customer's own OpenAI or DeepSeek key, with up to 30 million free tokens a month.

Pricing
Free (3 users); four paid editions, priced per user by region
AI
Zia included in Professional; bring-your-own-key AI agents
Customers
100,000+ companies (vendor figure)

Strengths

  • Free edition and inexpensive paid tiers
  • Option to use a company's own language-model key

Limitations

  • Prices shown depend on region, which complicates comparison
  • AI agent pricing beyond the token allowance is not published
3

Zendesk

Best for: Mid-size and large support operations

Zendesk, founded in 2007 and headquartered in San Francisco, says more than 80,000 companies use it for AI service. Its suite covers ticketing, messaging, voice and a help centre, with AI agents answering customers and Copilot assisting human agents. Annual prices per agent per month are US$19 for Support Team, US$55 for Suite Team and US$115 for Suite Professional; Suite Enterprise is quote-based. AI agents are billed per automated resolution, meaning a request resolved without escalation: each plan includes five or ten resolutions per agent per month, and more cost US$1.50 each committed or US$2.00 pay-as-you-go.

Founded
2007
Headquarters
San Francisco, California, US
Pricing
From US$19/agent/month (annual); US$1.50–2.00 per extra automated resolution
Customers
80,000+ companies (vendor figure)

Strengths

  • AI is billed only on resolved requests
  • Mature ticketing, routing and reporting

Limitations

  • Seat and resolution charges combine, making totals harder to forecast
  • Enterprise tier is quote-only
4

Freshdesk

Best for: Teams wanting separate, published prices for AI agent and copilot

Freshdesk is the ticketing product of Freshworks, which reports more than 74,000 customers in over 120 countries across its products. Plans billed annually cost US$19 (Growth), US$55 (Pro) and US$89 (Enterprise) per agent per month. The customer-facing Freddy AI Agent is priced at US$49 per 100 sessions after a one-time allowance of 500 sessions, and the agent-facing Freddy AI Copilot costs US$29 per agent per month on Pro and Enterprise. A 14-day trial gives Enterprise access, after which an unpaid account is suspended.

Pricing
Growth US$19, Pro US$55, Enterprise US$89 per agent/month (annual)
AI pricing
AI Agent US$49 per 100 sessions; Copilot US$29/agent/month
Customers (all products)
74,000+ (vendor figure)

Strengths

  • All AI prices are published
  • Copilot can be assigned to selected agents only

Limitations

  • Copilot is not available on the Growth plan
  • Sessions are charged regardless of whether they resolve
5

Fin (formerly Intercom)

Best for: Adding an AI agent without replacing an existing help desk

The company founded as Intercom in 2011 renamed itself Fin in 2026 after rebuilding around its AI agent; it reports more than 30,000 customer companies and over 1,400 employees. Fin is priced at US$0.99 per outcome without a seat requirement and can run inside the vendor's own help desk or on top of a third-party one, in which case a minimum monthly commitment applies. The vendor's help desk seats cost US$19 (Essential, annual), US$85 (Advanced) and US$132 (Expert) per month. Early-stage start-ups can obtain discounts of up to 93% and a year of Fin at no charge.

Founded
2011 (as Intercom)
Pricing
US$0.99 per outcome; seats from US$19/month (annual)
Customers
30,000+ companies (vendor figure)
Corporate status
Renamed from Intercom to Fin in 2026

Strengths

  • Works with third-party help desks
  • Transparent single outcome price

Limitations

  • Cost scales directly with automated volume
  • Minimum commitment when used with another help desk
6

Gorgias

Best for: Shopify and other e-commerce stores

Gorgias is a help desk built for online retailers that integrates with Shopify, BigCommerce, Magento and WooCommerce, and states that it handles customer conversations for 40% of Shopify brands and that more than 12,400 brands use its Pro plan. Plans are priced by ticket volume rather than seats: Starter costs US$10 per month for 50 tickets, Basic US$50 (annual) for 300, Pro US$300 for 2,000 and Advanced US$750 for 5,000. The AI Agent costs US$0.90 per automated interaction on annual contracts or US$1.00 monthly, and each interaction also counts as a ticket. The page's embedded product data shows higher list prices than the visible table, so buyers should confirm current figures.

Pricing
From US$10/month (50 tickets); AI Agent US$0.90–1.00 per automated interaction
Customers
12,400+ brands on the Pro plan (vendor figure)

Strengths

  • Billing by ticket rather than by agent seat
  • AI Agent can act on order data from the store platform

Limitations

  • Automated interactions are charged twice in effect, as an interaction and as a ticket
  • Inconsistent prices on the pricing page
7

Ada

Best for: Enterprises automating high volumes in regulated sectors

Ada Support Inc. reports more than 350 enterprise customers, naming Pinterest, monday.com, Sky, Grab, Barnes & Noble and GoFundMe. Its platform provides AI agents for voice, messaging and email, with playbooks that define how the agent handles processes, and lists SOC 2, HIPAA, GDPR and PCI DSS compliance. Ada publishes no prices and instead offers a return-on-investment model based on volume after a demonstration. Results it attributes to customers include monday.com cutting average handle time by 42%.

Company
Ada Support Inc.
Pricing
Quote-based
Customers
350+ enterprises (vendor figure)

Strengths

  • Covers voice as well as text channels
  • Wide set of compliance certifications

Limitations

  • No published pricing
  • Sales process starts with a demo call; no self-serve sign-up
8

Decagon

Best for: Consumer brands with very high contact volumes

Decagon sells AI agents for voice, chat and email, together with tools for building workflows it calls agent operating procedures, testing, experimentation, analytics and knowledge management. Its website does not state a customer total but displays logos including Deutsche Telekom, American Airlines, Square, Duolingo, Notion and Hertz. Results attributed to customers include a 70% chat and voice resolution rate at Chime and an 80% deflection rate at Duolingo. No prices are published; access is through a sales demonstration.

Pricing
Quote-based
Channels
Chat, email, voice

Strengths

  • Built-in testing and experimentation tools for agent behaviour
  • Reference customers across airlines, telecoms and fintech

Limitations

  • No published pricing or plan structure
  • No self-serve option for smaller companies
9

Help Scout

Best for: Small and mid-size teams handling mostly email

Help Scout is an email-centred help desk with a knowledge base and chat. It does not publish a customer total, stating instead that 80% of customers stay four years or more. A free plan covers five users, one inbox and one Docs site; paid plans are listed at US$25 (Standard), US$45 (Plus) and US$75 (Pro) per user per month, with a 16% discount for annual billing. AI drafting, summarising and assist tools are included on paid plans, while AI Answers resolutions cost US$0.75 each, with three months of unlimited resolutions for new accounts and an optional monthly spending cap.

Pricing
Free (5 users); Standard US$25, Plus US$45, Pro US$75 per user/month
AI pricing
US$0.75 per AI resolution

Strengths

  • Lowest published per-resolution AI price in this list
  • Monthly cap prevents unexpected AI charges

Limitations

  • Pro plan requires a demo despite a listed price
  • Fewer voice and telephony features than contact-centre suites
10

Kustomer

Best for: Consumer brands wanting a CRM-style view of every customer

Kustomer organises service around a timeline of each customer's interactions rather than individual tickets, and offers AI features named Concierge, Architect, Envoy and Data Explorer. Customers named on its site include Turo, Everlane, Rappi and Sweetgreen, and it lists SOC 2, ISO 27001, ISO 27701, ISO/IEC 42001 and GDPR compliance. Pricing is custom and arranged through a return-on-investment assessment; voice, SMS and WhatsApp usage are billed pay-as-you-go. The site does not publish a customer total.

Pricing
Quote-based; voice and messaging pay-as-you-go
Certifications
SOC 2, ISO 27001, ISO 27701, ISO/IEC 42001

Strengths

  • ISO/IEC 42001 certification for AI management systems
  • Unified customer timeline across channels

Limitations

  • No published plan prices
  • AI feature costs are not disclosed
11

Salesforce Agentforce Service

Best for: Large enterprises already on Salesforce CRM

Salesforce, which opened in 1999, sells its customer-service product as Service Cloud with Agentforce AI agents. Editions are priced per user per month: Starter Suite US$25, Pro Suite US$100, and annual Core, Advanced and Max editions at US$195, US$395 and US$550. Agentforce for Service can be bought on the lower editions, while Max includes 2.75 million Flex Credits per org per year, the unit used to meter agent actions. Free trials are offered on all editions except Max. Salesforce does not state a customer total on its about page.

Founded
1999
Pricing
Starter Suite US$25 to Max US$550 per user/month
AI metering
Flex Credits

Strengths

  • Agents act on the same data and workflows as Salesforce sales and marketing clouds
  • Published edition prices

Limitations

  • Upper editions are among the most expensive per user
  • Flex Credit consumption rates require separate calculation
12

Sierra

Best for: Enterprises wanting payment tied to resolved outcomes

Sierra was founded by Bret Taylor and Clay Bavor, who met at Google; the company began in San Francisco and lists offices in cities including New York, London, Paris, Tokyo and Sydney. It builds branded AI agents that handle customer conversations, and names CLEAR, Casper and Minted among its customers. Sierra uses outcome-based pricing: in a December 2024 post it stated that it is paid only when an agent completes a task such as resolving a support conversation or saving a cancellation, and that unresolved conversations and escalations are generally not billed. Simple interactions may be charged per conversation instead.

Founders
Bret Taylor, Clay Bavor
Pricing
Outcome-based; quote-based rates
Origin
San Francisco

Strengths

  • Vendor revenue is tied to completed tasks
  • Outcomes can include retention and upsell, not only resolutions

Limitations

  • No published rates
  • Outcome definitions must be negotiated per customer

Comparison table

ProductFree planLowest published priceAI billing modelPublished customers
HubSpot Service HubYes (2 users)US$7/seat/monthCreditsAbout 306,000
Zoho DeskYes (3 users)Regional pricingIncluded / token allowance100,000+
ZendeskNoUS$19/agent/monthPer resolution80,000+
FreshdeskNoUS$19/agent/monthPer session block74,000+
FinNoUS$0.99/outcomePer outcome30,000+
GorgiasNoUS$10/monthPer interaction12,400+ (Pro plan)
AdaNoQuote-basedNot published350+
DecagonNoQuote-basedNot publishedNot published
Help ScoutYes (5 users)US$25/user/monthPer resolution (US$0.75)Not published
KustomerNoQuote-basedNot publishedNot published
Salesforce Agentforce ServiceTrialUS$25/user/monthFlex CreditsNot published
SierraNoQuote-basedPer outcomeNot published

Selection considerations

Organisations with an established help desk usually evaluate that vendor's AI agent first, since escalations, reporting and knowledge content stay in one place; Fin is the main option in this list designed to run on top of a competitor's help desk. AI-first vendors such as Sierra, Decagon and Ada target companies with very high contact volumes and negotiate pricing individually.

Total cost depends on volume and on the share of conversations the AI resolves. Resolution- and outcome-based prices (Zendesk, Fin, Help Scout, Sierra) charge only for closed conversations, while session, interaction and credit models (Freshdesk, Gorgias, Salesforce, HubSpot) charge for usage. Buyers comparing vendors typically model both the per-unit price and the number of conversations each model would bill.

Frequently asked questions

What is AI customer service software?

It is software that uses language models to answer and resolve customer enquiries in chat, email, messaging or voice, and to help human agents with drafted replies and summaries. Most products combine an autonomous AI agent with a help desk where unresolved conversations are passed to people. Vendors range from established help desks such as Zendesk and Freshdesk to AI-first companies such as Sierra and Decagon.

How is AI customer service software priced?

Vendors use three main models: per agent seat, per resolved conversation or outcome, and per unit of usage such as sessions or credits. In November 2026 Fin listed US$0.99 per outcome, Help Scout US$0.75 per AI resolution, Zendesk US$1.50 to US$2.00 per automated resolution beyond an allowance, and Freshdesk US$49 per 100 AI sessions. Enterprise vendors such as Ada, Decagon and Sierra quote individually.

Can AI fully replace human customer service agents?

Vendors in this list design their AI agents to resolve a share of conversations and pass the rest to people. Published customer results describe partial automation, for example a 70% chat and voice resolution rate at Chime cited by Decagon, or Dott raising automated resolutions from 32% to 77% cited by Ada. Complex, sensitive or unusual cases still go to human agents.

What is an automated resolution?

An automated resolution is a customer request that an AI agent closes without escalating to a human. Zendesk uses it as its billing unit for AI agents, and similar concepts appear as outcomes at Fin and Sierra. Each vendor defines the term in its own contract, so the same conversation can count differently depending on the provider.

Which AI customer service software has a free plan?

HubSpot Service Hub has a free tier for two users, Zoho Desk a free edition with three user licences and Help Scout a free plan for five users. Free tiers typically include limited or no autonomous AI; Help Scout offers three months of unlimited AI Answers resolutions to new accounts, and Freshdesk includes 500 AI sessions once per account on paid plans.

See also

Categories: AI Tools All lists

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