Landbase vs Seamless.AI
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Landbase if you want agentic ai for go-to-market that builds and runs outbound campaigns (Supervised agent, subscription); choose Seamless.AI if you want real-time b2b contact search engine with ai prospecting and outreach (Assistant, freemium).
| Landbase | Seamless.AI | |
|---|---|---|
| What it is | Agentic AI for go-to-market that builds and runs outbound campaigns | Real-time B2B contact search engine with AI prospecting and outreach |
| Type | platform | product-with-agents |
| Autonomy | Supervised agent | Assistant |
| Pricing | subscription | freemium · Free tier (limited lifetime credits); Basic reportedly ~$147/mo; Pro and Enterprise quote-based |
| Best for | smb, mid-market | smb, mid-market, enterprise |
| Deployment | saas | saas, api |
| Modalities | text, email | text, email, voice, browser, api |
| Models | gpt, proprietary | proprietary |
| Protocols | function-calling, rest-api | rest-api |
| Integrations | HubSpot, Salesforce, LinkedIn, Gmail | Salesforce, HubSpot, Salesloft, Outreach, Pipedrive, LinkedIn |
| Capabilities | 4 documented | 5 documented |
Landbase
- +Prompt-to-campaign workflow that builds targeting, copy, and sequences quickly
- +Purpose-built GTM model trained on a large campaign dataset with reinforcement learning
- +Well funded (reported $30M Series A) with experienced founders
- -Conversion-uplift and campaign-speed figures are vendor-reported, not independently verified
- -Email/LinkedIn outbound focus; no native voice channel
Seamless.AI
- +Fast, self-serve real-time contact lookup with a free tier and a Chrome extension over LinkedIn
- +Credit-back guarantee on invalid emails per its homepage
- +All-in-one: search, enrichment, intent signals, and built-in email/calling in one platform
- -Data accuracy and bounce rates are a recurring complaint in user reviews
- -Pro and Enterprise pricing is gated behind a demo, and credit consumption can inflate real cost
Which should you choose?
Landbase is agentic ai for go-to-market that builds and runs outbound campaigns, best for smb, mid-market. Seamless.AI is real-time b2b contact search engine with ai prospecting and outreach, best for smb, mid-market, enterprise. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.