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Side-by-side comparison · Sales & Customer Support

Chatbase vs Hyperbound vs Sierra

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Chatbase

3.7

From $32/mo

Best overall

Hyperbound

4.1

Free to start

Sierra

3.9

Free to start

Comparing 3 tools, the maximum.

At a glance

Pick it if: Small businesses and online stores that want an AI chatbot answering questions on their website without hiring a developer.

Best overallBest value

Pick it if: Sales managers and enablement teams onboarding and coaching reps on calls.

Pick it if: Large consumer brands that want an AI agent to handle a big share of their customer conversations end to end.

Overview

AttributeChatbaseHyperboundSierra
In one linePuts an AI chatbot on your website that answers from your own docs and pages.AI sales role-play: practise cold calls and objections with realistic AI buyers.Builds and runs AI customer service agents for big brands, across chat, email and phone.
Pricing modelPaidFreemiumPaid
Starting price$32/moFreeSee website
Free plan No Yes No
Works with Claude Code Yes No No

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeChatbaseHyperboundSierra
Overall rating3.74.1Winner3.9
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.5
3.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
3.5
4.0
4.5
Output qualityHow good the results are before you fix them.
3.5
4.5
4.5
Value for moneyWhat you get for the price, including the free plan.
3.0
3.5
3.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.0
4.5

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeChatbaseHyperboundSierra
Access & platform
Free plan No Yes No
Mobile app–––
Desktop app–––
Browser extension– Yes–
API access Yes––
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes– Yes
Understands images–––
Makes images No No No
Makes video No No No
Writes code No No–
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes– Yes
Works in many languages Yes– Yes
Capabilities score8/ 176/ 177/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeChatbaseHyperboundSierra
Plans

Hobby

$32/mo billed yearly, or $40 monthly

A small site with light chat traffic.

Free

Free

Trying AI role-play with a few reps.

EnterpriseOur pick

Custom

Large companies with high conversation volumes.

StandardOur pick

$120/mo billed yearly, or $150 monthly

Businesses with steady daily chats.

PracticeOur pick

Custom per user

Teams that want reps rehearsing on AI.

Pro

$400/mo billed yearly, or $500 monthly

Busy sites and support teams.

Perform

Custom per user

Teams that also want real calls scored and coached.

Enterprise

Custom

Larger companies needing security and white-labelling.

Which plan to pickStart on the 7-day trial and watch how fast credits go with your real traffic. Hobby works for a small site; most businesses with daily customer chats need Standard. Each extra agent is $300 a year, and removing the Chatbase badge is $1,188 a year.Run the free role-plays with two or three reps first. If they keep using them, Practice covers rehearsal; only pay for Perform if you do not already have Gong or another call recorder.There is one route: talk to Sierra's sales team. Agree clearly what counts as an outcome you pay for, and what setup and services cost, before you sign.

Key features

AttributeChatbaseHyperboundSierra
Standout features
  • Train on your content
  • Website widget
  • Actions
  • Messaging channels
  • Hand-off and analytics
  • AI buyer role-plays
  • Custom personas
  • Scorecards
  • Real call scoring
  • Manager dashboards
  • Agent Studio
  • Ghostwriter
  • One agent, every channel
  • Connected to your systems
  • Insights and testing

Pros and cons

AttributeChatbaseHyperboundSierra
Pros
  • Live on a website in under an hour with no code
  • Good answers from your own content for simple questions
  • Works on WhatsApp, Messenger and Instagram as well as your site
  • API for developers who want to build on it
  • Very realistic AI buyers that react to what you say
  • Useful free plan with ready-made role-plays
  • Clear scoring that shows reps what to fix
  • Saves managers hours of live role-play
  • Agents take real actions, not just answer questions
  • Covers voice as well as chat, SMS, WhatsApp and email
  • Outcome-based pricing means you pay for results, not seats
  • Proven at very large brands
Cons
  • Credit-based pricing is hard to forecast and the bot stops when credits run out
  • Top-ups, extra agents and badge removal add noticeable cost
  • No free plan, only a 7-day trial
  • Users report slow billing and support responses
  • Not a helpdesk: no full inbox, ticketing or team reporting
  • No public pricing for team plans
  • Custom personas and scorecards take setup time
  • Built for sales teams, not individuals practising on their own
  • No public pricing; estimates put it out of reach for most small and mid-sized businesses
  • No trial or self-serve option, so you are committing to a sales process and a project
  • Few independent reviews to check claims against
  • You depend on Sierra's team for much of the build

Who each one is for

AttributeChatbaseHyperboundSierra
Best for
  • Website FAQ and support chatbot
  • Answering questions from your docs and policies
  • Capturing leads from website visitors
  • Chatbots on WhatsApp and Messenger
  • Practising cold calls before going live
  • Onboarding new sales reps faster
  • Drilling objection handling
  • Scoring calls against a scorecard
  • High-volume customer service at large brands
  • AI phone agents that take real actions
  • Returns, bookings and account changes
  • Saving cancellations and handling retention calls
You'll find it used by
  • Small businesses
  • Online stores
  • Software companies
  • Agencies
  • Course creators
  • Sales development reps
  • Account executives
  • Sales managers
  • Sales enablement teams
  • Enterprise support teams
  • Contact centres
  • Retail brands
  • Banks and insurers
  • Telcos

Questions people ask

Which is better, Chatbase, Hyperbound or Sierra?

Hyperbound scores highest overall in our ratings (Chatbase 3.7/5, Hyperbound 4.1/5 and Sierra 3.9/5). Chatbase is best for Website FAQ and support chatbot and answering questions from your docs and policies. Hyperbound is best for practising cold calls before going live and onboarding new sales reps faster. Sierra is best for high-volume customer service at large brands and AI phone agents that take real actions.

Which is cheaper, Chatbase, Hyperbound or Sierra?

Chatbase: There's no free plan. Paid plans start at $32/mo. Hyperbound: It's free to use. Sierra: Pricing isn't published; check the vendor's site for a quote.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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