Landbase vs Unify in 2026: Natural language account search vs prompt-driven agents with built-in sequencing
Both let you describe an ICP in plain English and get qualified accounts back. Unify goes a step further and lets you sequence and email those contacts from the same chat interface; Landbase stops at the data.
Landbase
Unify- Unify includes multi-channel sequencing (email, LinkedIn, phone on Business) with AI copywriting; Landbase has no sequencing or sending feature of any kind.
- Landbase makes account search and AI qualification free at every tier; Unify's free tier includes 100 credits per seat per month and caps at 3 seats.
- Unify's database covers 1.1B+ people and 65M+ companies with 40+ signal sources; Landbase does not publish a comparable named database size, instead emphasizing natural language query depth on tech stack and headcount.
- Unify's HubSpot and Salesforce sync is read-only on Pro and read-write only on the custom-priced Business tier; Landbase does not prominently document native CRM sync at any tier.
- Landbase's paid self-serve tiers top out at $299/month; Unify's Pro tier runs $60/seat/month, with Business requiring a custom annual contract.
- Unify reports customers seeing 57% more replies from AI-personalized emails; Landbase does not publish outreach performance metrics since it does not send outreach itself.
Landbase and Unify are the second genuine head-to-head in this batch, since both are AI-native, prompt-driven B2B account discovery platforms backed by real venture credibility, Landbase with a Gartner Cool Vendor badge and a $30M Series A, Unify backed by the OpenAI Startup Fund. The split is in scope. Landbase is deliberately narrow: natural language search, free AI qualification, and pay-per-verified-result enrichment, with no sequencing at all. Unify takes the same prompt-driven idea and extends it into multi-channel sequencing with AI copywriting, letting a rep go from "find me these accounts" to a sent, personalized email inside one chat session. If you want the purest, most focused account discovery engine, Landbase is built for that. If you want discovery and outreach unified in one prompt-driven workflow, Unify covers more ground.
The tools at a glance
Landbase
GTM data platform that uses AI agents to find, qualify, and prioritize B2B accounts from a natural language prompt.
Landbase's bet is that account discovery deserves to be its own dedicated product rather than one feature among several. A plain-English query, "US SaaS companies with $10M to $50M ARR using Salesforce and HubSpot with 50+ employees in engineering," runs through the GTM-2 Omni model, trained on more than 50 million GTM campaigns, and returns matches that legacy filter-based tools cannot handle natively.
Search and AI qualification cost nothing regardless of tier, so a team filters extensively before spending a credit, and enrichment only charges for verified results, an email at 1 credit and a phone number at 10, with failed lookups free. The free tier's 1,000 credits require no card.
The natural language search depth on multi-source criteria, tech stack plus department headcount plus funding stage in one query, is a genuine differentiator versus Unify's broader but less narrowly-tuned prompt interface. What Landbase gives up in exchange is any ability to act on the list it builds.
| Feature | Free $0 | Starter $49/mo | Most Popular $149/mo | Professional $299/mo |
|---|---|---|---|---|
| Credits included | 1,000 (one-time) | 1K/mo | 3.5K/mo | 7.5K/mo |
| Natural language account search | Free | Free | Free | Free |
| AI qualification scoring | Free | Free | Free | Free |
| Multi-channel sequencing | ✗ | ✗ | ✗ | ✗ |
| AI email copywriting for outreach | ✗ | ✗ | ✗ | ✗ |
| Credit card required | ✗ | ✓ | ✓ | ✓ |
Unify
AI outbound agents that prospect, enrich, and sequence from a single chat prompt using a 1.1B-person B2B database.
Unify, backed by the OpenAI Startup Fund, extends the prompt-driven idea past discovery into execution. Purpose-built AI agents handle network-based selling, local business discovery, and social signal personalization, and they chain together so a rep can move from account identification to a first email draft in one chat session rather than switching between a database, an enrichment tool, and a CRM.
The underlying database covers 1.1B+ people and 65M+ companies with daily partial refreshes, and 40+ signal sources feed intent data like job changes and funding events directly into the same interface. Once a list is built, multi-channel sequences covering email, LinkedIn, and phone (Business tier) launch from the same chat, with AI copywriting generating messages based on signal data rather than generic templates; customers report 57% more replies from these AI-personalized emails.
The free tier and $20/seat Base plan make it genuinely accessible for individual reps to try, but the ceiling is steep: read-write CRM sync, advanced AI models, and website intent signals are all locked behind the custom-priced, annually-billed Business tier.
| Feature | Free $0/mo | Base $20/seat/mo | Pro $60/seat/mo | Business Custom/year |
|---|---|---|---|---|
| Credits included | 100/seat/mo | 800/seat/mo | 2,400/seat/mo | Custom pool |
| AI outbound agents | ✓ | ✓ | ✓ | ✓ |
| AI email copywriting | ✗ | ✓ | ✓ | ✓ |
| Multi-channel sequencing | ✗ | ✓ | ✓ | ✓ |
| HubSpot & Salesforce sync | ✗ | ✗ | Read-only | Read-write |
| Website intent signals | ✗ | ✗ | ✗ | ✓ |
Head-to-head feature comparison
| Feature | Landbase | Unify |
|---|---|---|
| Natural language account search | Yes, deep multi-criteria queries | Yes, prompt-driven agents |
| Free search and qualification | Yes, free at every tier | Search included; copy and signals gated by tier |
| Database size (people) | Not prominently published | 1.1B+ |
| Multi-channel sequencing | No | Yes, email/LinkedIn/phone (Business) |
| AI copywriting for outreach | No | Yes, signal-based personalization |
| CRM sync | Not prominently documented | Yes, read-only Pro, read-write Business |
| Intent / signal sources | Not a named count | 40+ sources |
| Free tier | 1,000 one-time credits, no card required | 100 credits/seat/mo, up to 3 seats |
| Top self-serve tier price | $299/mo | $60/seat/mo (Pro) |
| Backing / credibility signal | Gartner Cool Vendor, $30M Series A | Backed by OpenAI Startup Fund |
Which should you choose?
LandbaseUnifyLandbaseUnifyLandbaseUnifyBoth companies are chasing a similar vision, replacing filter-menu prospecting with plain language, but Unify chased a wider surface area and Landbase chased depth on the query itself. Unify's free tier is smaller (100 credits per seat, capped at 3 seats) but includes the ability to actually act on what it finds, while Landbase's larger one-time free allocation (1,000 credits) is purely for discovery. The CRM sync gap on Unify is real: read-write access requires the custom-priced Business tier, which is a meaningful cliff for a team that outgrows Pro but is not ready for an annual enterprise contract.
Bottom line
Choose Landbase if the complexity of your targeting criteria, tech stack, department headcount, funding stage combined, is the hardest part of your workflow and you are fine handling outreach separately. Choose Unify if you want one chat interface to take you from account discovery through a sent, personalized email, and are comfortable with search depth that is broad rather than laser-focused on multi-source filters. A team that has tried Unify and found its query results too generic for a niche ICP is a reasonable candidate to add Landbase specifically for the discovery step, then route the output back into Unify or another sequencer for execution.
Frequently asked questions
Can Unify send emails the way Landbase cannot?
Yes, this is the core difference. Unify includes multi-channel sequencing with AI copywriting from its Base plan up, letting a rep launch email, LinkedIn, or phone (Business tier) sequences directly from the same chat interface used for discovery. Landbase has no sequencing or sending feature at all and is strictly a discovery and enrichment layer.
Is Landbase's natural language search actually more capable than Unify's for complex B2B queries?
Landbase's own positioning emphasizes deep multi-source query capability, tech stack detection combined with department-level headcount and funding stage in one prompt, that it argues neither Apollo nor Clay handle natively. Unify's prompt-driven agents cover similar ground with its 1.1B-person database and 40+ signal sources, but the two platforms are not identically tuned, so testing both against your specific ICP criteria is the only way to know which returns better matches for your use case.
How does Unify's free tier compare to Landbase's free tier?
Unify's free tier gives 100 credits per seat per month on an ongoing basis, capped at 3 seats, and includes basic AI outbound agents. Landbase's free tier is a one-time allocation of 1,000 credits worth roughly $49, with no seat cap mentioned and no credit card required, but it only covers discovery, not any sequencing capability Unify's free tier partially includes.
Does Landbase offer CRM sync like Unify's HubSpot and Salesforce integration?
Landbase does not prominently document native CRM integrations; it primarily offers a CLI and API for moving data into other systems. Unify offers HubSpot and Salesforce sync starting at Pro, though read-only, with full read-write sync reserved for the custom-priced Business tier.
Which tool is backed by more credible investors or recognition?
Both carry real signals. Landbase was named a Gartner Cool Vendor and raised a $30M Series A. Unify is backed by the OpenAI Startup Fund, which is a strong signal specifically around its AI-native product direction. Neither backing should be the deciding factor over actually testing data quality against your own target accounts.
Is Unify a full replacement for a sales engagement platform like Outreach or Salesloft?
Not yet for large teams. Unify's own materials acknowledge it lacks the advanced call analytics, deal forecasting, and enterprise workflow management of platforms like Outreach and Salesloft, positioning itself instead as a replacement for the prospecting and enrichment layer specifically, a role where it competes more directly with Landbase than with full sales engagement suites.