Chili Piper made its name on routing and scheduling, and its Chat AI now answers questions and books meetings on the website too. Darwin is a website chat first, with booking built in and openings that improve on their own. Here's how they compare.
For pages with automation enabled and sufficient traffic to run an experiment. Every plan includes unlimited optimized pages.
Chili PiperManual setup
Opening messages are written by the operator and targeted by rules. 4
Targeting decides where a message shows; the copy is authored manually.
Tests and keeps better openings
DarwinYes
Tests opening variants and can promote a better performer. 1
Requires enough evidence; an experiment may have no winner.
Chili PiperNot documented
Automatic promotion of a better opening is not documented. 4
No message-testing workflow appears in the reviewed guide.
Starts the next test automatically
DarwinYes
The next opening experiment builds from the current winner. 1
Automation must be enabled and the page eligible. This does not guarantee improving results.
Chili PiperNot documented
An automatic cycle of generating, testing and replacing openings is not documented. 4
Changes are made and published by the operator.
OnboardingWhat the product prepares for you before you go live.
Learns from your website
DarwinYes
Darwin discovers the relevant pages on your website and prepares its knowledge base from them. 5
Initial setup selects key pages for speed; more pages can be imported later.
Chili PiperSite crawl
Chat AI scans your website up to three levels deep, or imports a sitemap or page list. 2
Results show per page with import status.
Drafts your sales settings
DarwinYes
Prepares business information and assistant settings from the website. 5
The user can review and refine the generated draft.
Chili PiperNot documented
Automatic drafting of business settings from the website is not documented. 2
Personality, Strategies and Guidances are written by the team.
Matches chat to your brand
DarwinColors & fonts
Extracts brand colors, fonts and assets for the chat design. 5
Brand detection is a draft: available fonts, contrast and source-site access affect the result.
Chili PiperNot documented
Colors and logo are set manually; automatic brand import is not documented. 6
Appearance is configured in Bot Settings.
Writes your first chat opening
DarwinYes
Drafts the first chat opening from the business context. 7
Drafted during assisted setup; approve it, edit it (120-character limit) or ask Darwin for a revision.
Chili PiperManual setup
The Welcome Message node and reply buttons are written by the operator. 4
The Welcome Message node cannot be deleted.
Review before going live
DarwinYes
The assistant draft can be reviewed and refined before installation. 7
Calendar connection, testing and website installation remain separate completion steps.
Chili PiperYes
Testing tab for Chat AI and staging-URL triggers for Journeys. 24
Responses can be marked good or bad before going live.
PricingUSD before tax. Darwin charges per credit. Chili Piper sells platform tiers from $1,250 a month, billed annually, with seats and AI credits included.
A credit is one booked meeting or one request that passes your fit rules. Not a monthly allowance; a card is needed once all five are used.
Chili PiperNot documented
Chili Piper's pricing page lists no free plan or trial. 9
Contract-based sales.
AI usage charge
Darwin$30/credit
Free charges $30 per credit after the first five. 8
A confirmed booking or a request that passes the fit rules is one credit. Conversations and leads that fail the fit rules are never charged, and there is no plan fee.
Chili PiperAI credits
Plans include 45,000 or 150,000 AI credits per year; overage pricing is not shown. 10
Includes 10 credits a month. Annual billing is two months free ($2,990 a year); credits and extra-credit charges stay monthly.
Chili Piper$1,250/mo
Chili Piper's Routing & Scheduling plan starts at $1,250 per month. 9
Billed as $15,000 a year with 15 seats included; extra seats are $45 per seat per month.
Included on paid plans
Darwin10–25 credits/mo
Growth includes 10 credits a month; Agency includes 25, pooled across up to 200 client workspaces. 8
Unused included credits roll over for one month. Growth can also be bought with 35, 60 or 110 credits a month, and Agency with 50, 75, 125, 275 or 525.
Chili Piper15–30 seats + credits
15 seats and 45,000 AI credits a year on Routing & Scheduling; 30 seats and 150,000 on Experiences. 10
Extra seats $45 to $50 per month.
Additional paid-plan usage
Darwin$8–$25/credit
Extra credits cost $25 each. Choosing more credits each month lowers the rate: on Growth, $20 at 35 credits, $16 at 60 and $12 at 110; on Agency, $10 at 275 and $8 at 525. 8
Charged automatically each month at the current rate, after the monthly included credits and in addition to the plan fee.
Chili PiperAI credits
Plans include 45,000 or 150,000 AI credits per year; overage pricing is not shown. 10
Credits are not booked meetings.
Your first five meetings or requests are free. After that each is $30, or Growth is $299 a month with 10 included.
Facts checked Oct 5, 2026 to Oct 20, 2026. Plans and integrations can change. Not documented means the reviewed sources don’t establish a capability; it doesn’t prove the feature is missing. Sources and method
Why Darwin
Your chat works on getting better.Darwin keeps trying new openings on the pages you allow it to, and it keeps the ones that get visitors talking and booking. You don't run the tests. You just show up to the meetings.
ACurrent opening50%Hi! How can I help?Chats0Meetings0
BNew opening50%Comparing plans? Tell me your team size and I’ll point you to the right one.Chats0Meetings0
WinnerKeep opening BEvery visitor now sees B
Most website chat is a support inbox in disguise.A visitor on your pricing page wants something different from one on your security page. Darwin knows the difference. It opens with what they came for and books the meeting.
corvel.io/pricing
Other chat agentsHey 👋 How can I help?
CorvelReplies instantly
Comparing plans? Tell me your team size and I’ll tell you which one pays for itself.
Under 10 peopleBook 15 minutes
solstice.health/security
Other chat agentsHey 👋 How can I help?
SolsticeReplies instantly
Here for SOC 2 and data handling? Ask me anything, or I can send the report to your security team.
Send the reportBook a call
kinsale.io/compare
Other chat agentsHey 👋 How can I help?
KinsaleReplies instantly
Weighing us against what you use today? Ask the hard questions. I’ll give you honest answers.
PricingMigration
What is Darwin
Meet the chat that keeps improving.
Eighty-five seconds on what Darwin does: learns your business from your site, books the meeting inside the chat, and keeps rewriting the opening until more people talk.
The cheapest way in is Routing & Scheduling at $1,250 a month, though Chili Piper bills it annually, so the real number is $15,000 up front for 15 seats and 45,000 AI credits. Experiences jumps to $3,500 a month for 30 seats, and the pricing page doesn't mention a trial. Darwin has nothing resembling a seat fee. Free costs $0 a month, five credits come free, and every meeting or qualified request after that is what you pay for.
Yes, and honestly this is the part Chili Piper does better than almost anyone. When Chat AI recognizes a meeting request it triggers the Schedule Meeting action, and a Journey can show a calendar that round-robins the visitor straight to the right rep. Darwin approaches booking with less machinery. The chat offers a time, then your scheduler, whichever one you've connected, does the rest. Before you compare numbers, make sure you know what each scheduler counts as a booked meeting.
It does. Chat AI's Knowledge Base can scan your whole site up to three levels deep, read your sitemap, or take a list of specific pages, and you can upload files alongside. Darwin reads your site as well, but it uses the reading for more than answers: it drafts your business settings, grabs your brand colors and writes a first opening from what it finds.
Not automatically. Each Journey opens with a Welcome Message you write, and Chat AI is tuned by marking test responses good or bad in the Testing tab. Darwin writes opening variants for each page, tests them, keeps the better one and starts the next test.
Sources, not guesswork.Every row links to the page behind it.
Published by Darwin, using the official documentation linked below. This is a comparison of documented capabilities, not a hands-on benchmark. “Not documented” means the reviewed sources do not establish that capability; it does not prove absence. Chili Piper prices are platform tiers billed annually with included seats and AI credits; a credit is not a booked meeting. Darwin bills for booked meetings. Setup means preparing a draft, not automatically installing it.
Published by
Darwin
Editorial review
Facts checked
Oct 5, 2026 to Oct 20, 2026
Source access and fact-check dates are recorded separately for each source below.
All 13 sourcesWhat each one supports, and when it was checked
Rechecked 2026-10-06. Knowledge Base from website (whole site up to 3 levels, sitemap, or page list) and files; Personality, Strategies, Guidances; Testing tab with good/bad feedback.
What this supports 6
chili-piper · autonomous opening tests
Testing tab lets you mark responses good or bad to fine-tune Strategies and Guidances.
Fact checked · Review due
chili-piper · Website knowledge preparation
Whole website scan with shallow, medium or deep depth; sitemap; specific list of webpages.
Fact checked · Review due
chili-piper · Business and assistant draft
You select a name, tone and length, and write Strategies and Guidances.
Fact checked · Review due
chili-piper · Review before launch
Use the Testing tab before going live.
Fact checked · Review due
chili-piper · primary focus
Chat AI engages visitors, answers questions and books meetings.
Fact checked · Review due
chili-piper · business knowledge
Knowledge Base from Website or Files, with whole-site, sitemap or page-list scans.
Rechecked 2026-10-06. Learns by ingesting public site pages and uploaded assets; AI-only or AI plus live chat; refine through the Testing tab; meeting booking via Strategies.
What this supports 2
chili-piper · autonomous opening tests
Refine outputs through the Testing tab at any time.
Fact checked · Review due
chili-piper · business knowledge
Learns by ingesting public site pages and uploaded assets.
Rechecked 2026-10-06. Trigger conditions (URL, time on page, scroll, device); operator-written Welcome Message and reply buttons; Display Calendar and routing nodes; Salesforce and HubSpot nodes; testing via staging URL.
What this supports 5
chili-piper · Page-specific opening variants
Each Journey starts with an operator-written Welcome Message and reply buttons, triggered by URL, time on page or scroll.
Fact checked · Review due
chili-piper · Message test winner selection
No A/B testing or winner selection is described.
Fact checked · Review due
chili-piper · Ongoing opening experimentation
Messages are edited and re-activated manually.
Fact checked · Review due
chili-piper · Initial welcome message
The first node after a Trigger is always the Welcome Message, which you edit.
Fact checked · Review due
chili-piper · Review before launch
Trigger conditions can target a testing or staging URL.
URL updated 2026-10-19: the docs page moved (the old address redirects here).
What this supports 2
darwin · Initial opening draft
Darwin prepares the opening from your website and shows it in a card to approve (Looks good), edit (120-character limit) or revise by message; the page no longer says it uses the experiment writer's requirements.
Fact checked · Review due
darwin · Review before launch
The assistant draft can be reviewed and refined before installation.
Darwin's own pricing page after the move to credits (Free, Growth, Agency): plan fees, credits included, extra-credit prices, add-ons, annual billing and what uses a credit. Read from the live page; the release script checks the page before it records the access time.
What this supports 7
darwin · Free monthly base
Free has no monthly fee; its first 5 credits are free, then each credit is $30.
Fact checked · Review due
darwin · Free credits
The first 5 credits on Free are free, once; a card is needed after that.
Fact checked · Review due
darwin · Free credit price
Free charges $30 a credit after the first five; leads that fail the fit rules are free.
Fact checked · Review due
darwin · Lowest paid monthly fee
Growth is $299 a month, or $2,990 a year, with 10 credits a month included.
Fact checked · Review due
darwin · Monthly paid-plan credits
Growth includes 10 credits a month and Agency 25, pooled; unused credits roll over one month.
Fact checked · Review due
darwin · Paid-plan extra credits
Extra credits are $25 on Growth and Agency; choosing more credits each month lowers them to $20, $16 or $12 at 35, 60 or 110 on Growth, and to $8 at 525 on Agency.
Fact checked · Review due
Darwin · billing model
Documents Free's five free credits, the credit price, what uses a credit and when a card is needed.
Routing & Scheduling $1,250 per month with 15 seats and 45,000 AI credits per year; Experiences $3,500 per month with 30 seats and 150,000 credits; ChiliCal $12 per user with 200-seat minimum; no trial listed.
What this supports 3
chili-piper · Lowest monthly base
$1,250 per month, $15,000 per year, 15 seats included.
Fact checked · Review due
chili-piper · Introductory offer
No free trial or free tier is mentioned.
Fact checked · Review due
chili-piper · billing model
Routing & Scheduling $1,250 per month, 15 seats; Experiences $3,500 per month, 30 seats.
Rechecked 2026-10-06. Routing & Scheduling $1,250 per month with 15 seats and 45,000 AI credits per year; Experiences $3,500 per month with 30 seats and 150,000 credits; ChiliCal $12 per user with 200-seat minimum; no trial listed.
What this supports 3
chili-piper · AI usage
45,000 credits annually on Routing & Scheduling; 150,000 on Experiences.
Fact checked · Review due
chili-piper · Included plan usage
Seats and AI credits by tier; additional seats $45 or $50 per month.
Fact checked · Review due
chili-piper · primary focus
Routing, scheduling and chat bundled into two tiers.
Trigger conditions (URL, time on page, scroll, device); operator-written Welcome Message and reply buttons; Display Calendar and routing nodes; Salesforce and HubSpot nodes; testing via staging URL.
What this supports 1
chili-piper · meeting booking
Display Calendar and routing nodes lead visitors to book a meeting with a sales rep.
Knowledge Base from website (whole site up to 3 levels, sitemap, or page list) and files; Personality, Strategies, Guidances; Testing tab with good/bad feedback.
What this supports 1
chili-piper · meeting booking
Meeting requests trigger the Schedule Meeting action in Chili Piper.
Fact checked · Review due
Keep comparing.Related comparisons and the pages buyers read next, all published by Darwin with visible sources.