Side by side
Gravity vs Kaia
Both stand on sales chatbot software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose Gravity if your team wants a website agent that combines visitor responses, lead qualification, CRM functions, and calendar booking. Its pilot includes onboarding and ongoing review, with the Live Traffic Pilot aimed at teams with steady inbound traffic. Teams looking for a listed price should ask Gravity for a quote.
Visit GravityChoose Kaia if you want a self-hosted, open-source website chatbot that combines lead capture, appointment booking, product displays, and agent handoff. Look elsewhere if you need WhatsApp or Telegram integrations, multilingual chat, rate limiting, or analytics export now.
Visit KaiaThe facts
| Gravity | Kaia | |
|---|---|---|
| Free plan | Not published | Not published |
| Open source | Not published | Not published |
| Runs on | Web | Self-hosted, Web |
| Lowest paid plan | Free or on request | Not published |
| Plans published | 1 | None |
| Maker | Not published | Not published |
| Website | startgravity.com | github.com |
| On sales chatbot software | #26 of 32 | #30 of 32 |
Gravity: what it does well
- Crawls website content and lets teams refresh its knowledge base.
- Visual builder offers 10 block types and supports 11 languages.
- Manages contacts, companies, custom fields, and pipeline stages.
- Books timezone-aware meetings while protecting against double bookings.
- Multiple agents can share one inbox with scoped settings.
What to know first
- Pricing is available on request.
- The pilot requires a calendar connection and tag manager installation.
- Live Traffic Pilot runs 3–4 weeks; Build Partner runs 4–6 weeks.
Kaia: what it does well
- GPT-4o assistant with streaming responses.
- Manages unlimited branded chatbots across domains.
- Includes appointment booking, segmented email campaigns, and product showcases.
- Agents can take over live conversations through Pusher.
- MIT-licensed, Docker-ready, and Vercel-ready.
What to know first
- Quick start requires Node.js 18.17 or later and PostgreSQL 15 or later.
- WhatsApp, Telegram, multilingual chat, rate limiting, and analytics export are roadmap items.
- Named Stripe subscription tiers have no stated prices.