Alternatives

Best Sierra alternatives

10 tools similar to Sierra, ranked by how closely they match what it does among customer support. 4 have a free option.

Sierra alternatives at a glance

Tool	Pricing	Compare
Sierra(this tool)	Enterprise
Siena AI	Paid · from $750/mo	vs Sierra
Chatbase	Paid · from $32/mo	vs Sierra
Zendesk	Paid · from $19/mo	vs Sierra
Botpress	Freemium
Decagon	Freemium
boost.ai	Enterprise
Certainly	Freemium
Kustomer	Enterprise
Capacity	Paid
Forethought	Paid

Top 10 alternatives to Sierra

Siena AI

Customer support

Empathic AI Agents for commerce

$750/month platform fee for core AI engine and unlimited sandbox; $0.90 per automated ticket; expert onboarding plus dedicated Slack support included.

ShopifyZendeskYotpoRecharge

PaidEveryone

Chatbase

Free

Customer support

AI Agents for Customer Experience & Support

Hobby at $32/mo (billed yearly, $40/mo monthly); Standard at $120/mo; Pro at $400/mo; Enterprise custom pricing. All plans start with a 7-day trial. Add-ons available for extra credits, agents, storage, and white-labeling.

SlackWhatsAppMessengerInstagram+18

PaidEveryoneAPI

Multiple: OpenAI, Anthropic, Google (Gemini), DeepSeek, MoonshotAI, Mistral, Z.ai

Zendesk

Customer support

AI-powered service platform that delivers real resolutions, not just deflections

Starting from $19/month. 14-day free trial available. Qualified startups can get up to 2 years free.

SlackSalesforceShopifyJira+1

PaidEveryoneAPI

Zendesk AI (proprietary, with Forethought integration)10M+ users

Botpress

Free

Customer support

The enterprise-grade AI agent platform for customer support

Free plan: $0 (100 conversations/mo, 3 seats, 3 AI agents). Plus: $150/mo billed annually (250 conversations/mo, unlimited AI agents). Team: $750/mo billed annually (1,500 conversations/mo, unlimited seats). Enterprise: custom pricing. Additional conversations sold in packs (e.g. $0.50–$0.65/convo).

IntercomZendeskHubSpotSalesforce+4

Free tierEveryoneAPI

OpenAI, Anthropic, Groq, Hugging FacePopular

Decagon

Free

Customer support

The AI concierge for every customer

ChatVoiceEmail

Free tierEveryone

boost.ai

Customer support

Conversational AI platform built for regulated enterprises — automate CX with confidence and control

Enterprise pricing — contact for custom demo and quote

SalesforceMicrosoft TeamsGenesysServiceNow+1

EnterpriseEveryoneAPI

Hybrid (proprietary NLU + third-party LLMs)Growing

Certainly

Free

Customer support

AI Agents for Customer Experience — automate support, sales, and engagement at scale

Free trial available · Paid plans vary by usage and features

ShopifyZendeskFreshdeskSalesforce+1

Free tierEveryoneAPI

OpenAIGrowing

Kustomer

Customer support

AI-native customer service platform that turns every interaction into a lasting relationship

Enterprise pricing — schedule a demo for a custom quote

SlackFacebookInstagramWhatsApp Business+3

EnterpriseEveryoneAPI

Growing

Capacity

Customer support

Unified AI platform for customer support — AI agents across every channel, orchestrated to automate, assist, analyze, and engage.

Three platform tiers (Core, Pro, Enterprise) with an annual platform subscription fee plus usage-based pricing for AI Agents (chat per response, voice per minute, email per response, SMS per message) and add-ons for integrations. Agent Assist and Conversation Intelligence priced per hour of agent time. Volume discounts available.

SalesforceServiceNowZendeskSlack+16

PaidEveryoneAPI

Growing

Forethought

Customer support

Enterprise AI agents for end-to-end customer support automation

Enterprise pricing; proof of concept available on request

ZendeskSlackEmailVoice

PaidEveryoneAPI

Growing

Free Sierra alternatives

Read the full Sierra guide Browse all customer support tools