Self-improving
Opening experiments run for you.
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.
Opening experiments run for you.
Your website becomes your starting point.
Try Darwin with included bookings.
Chili Piper is the choice when meeting routing across a whole sales org is the hard problem and chat is one entry point into it. Darwin is the choice when the chat window itself has to earn more meetings, and you'd rather not sign a $15,000-a-year contract to find out. Below: automation, setup and price.
How each product improves the openings that start sales conversations.
| What matters | Darwin | |
|---|---|---|
| Self-improves to book more meetingsi | Yes | Not documented |
| Writes new openings for each pagei | Yes | Manual setup |
| Tests and keeps better openingsi | Yes | Not documented |
| Starts the next test automaticallyi | Yes | Not documented |
Creates tests. Promotes qualifying winners. Tests again. 1
With automation enabled, on eligible pages within your plan. Tests need enough traffic; a lift is not guaranteed.
Checked Sep 11, 2026Creates opening variants from page context. 1
For pages with automation enabled and sufficient traffic to run an experiment. Every plan includes unlimited optimized pages.
Checked Sep 11, 2026Opening messages are written by the operator and targeted by rules. 4
Targeting decides where a message shows; the copy is authored manually.
Checked Sep 11, 2026The next opening experiment builds from the current winner. 1
Automation must be enabled and the page eligible. This does not guarantee improving results.
Checked Sep 11, 2026An automatic cycle of generating, testing and replacing openings is not documented. 4
Changes are made and published by the operator.
Checked Sep 11, 2026What the product prepares for you before you go live.
| What matters | Darwin | |
|---|---|---|
| Learns from your websitei | Yes | Site crawl |
| Drafts your sales settingsi | Yes | Not documented |
| Matches chat to your brandi | Colors & fonts | Not documented |
| Writes your first chat openingi | Yes | Manual setup |
| Review before going livei | Yes | Yes |
Discovers relevant website pages and prepares the knowledge base. 5
Initial setup selects key pages for speed; more pages can be imported later.
Checked Sep 11, 2026Chat AI scans your website up to three levels deep, or imports a sitemap or page list. 2
Results show per page with import status.
Checked Sep 11, 2026Prepares business information and assistant settings from the website. 5
The user can review and refine the generated draft.
Checked Sep 11, 2026Automatic drafting of business settings from the website is not documented. 2
Personality, Strategies and Guidances are written by the team.
Checked Sep 11, 2026Extracts 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.
Checked Sep 11, 2026Colors and logo are set manually; automatic brand import is not documented. 6
Appearance is configured in Bot Settings.
Checked Sep 11, 2026Drafts the first chat opening from the business context. 5
Uses the same opening requirements as the experiment writer; the draft remains editable.
Checked Sep 11, 2026The Welcome Message node and reply buttons are written by the operator. 4
The Welcome Message node cannot be deleted.
Checked Sep 11, 2026The assistant draft can be reviewed and refined before installation. 5
Calendar connection, testing and website installation remain separate completion steps.
Checked Sep 11, 2026USD before tax. Darwin charges per booked meeting. Chili Piper sells platform tiers from $1,250 a month, billed annually, with seats and AI credits included.
| What matters | Darwin | |
|---|---|---|
| Lowest monthly platform feei | 0 USD / month | 1,250 USD / month |
| Introductory offeri | 5 free bookings | Not documented |
| AI usage chargei | 20 USD / booking | AI credits |
| Paid plans start ati | 99 USD / month | 1,250 USD / month |
| Included on paid plansi | 5–60 bookings / month | 15–30 seats + credits |
| Additional paid-plan usagei | $5–$15 / booking | AI credits |
Adapt includes 5 bookings, Evolve 20 and Apex 60 per month. 7
Allowances reset monthly, including on annual subscriptions.
Checked Sep 11, 202615 seats and 45,000 AI credits a year on Routing & Scheduling; 30 seats and 150,000 on Experiences. 8
Extra seats $45 to $50 per month.
Checked Sep 11, 2026Extra bookings cost $15 on Adapt, $10 on Evolve and $5 on Apex. 7
In addition to the subscription, after the monthly included allowance.
Checked Sep 11, 2026Plans include 45,000 or 150,000 AI credits per year; overage pricing is not shown. 8
Credits are not booked meetings.
Checked Sep 11, 2026Darwin 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.
See how Darwin improvesStart with the job you need your chat to do.
Turn website visits into sales meetings.
Route and schedule inbound meetings across a sales team, with chat as one door in.
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. Origin costs $0 a month, five bookings come free, and every meeting after that is what you pay for.
810Yes, 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.
249It 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.
25Published 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.
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.
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.
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.
Logo, company name, light/dark background, action color, launcher position, default state; office hours; embed code; Chat Calendar branding.
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.