AI Lead Generation Tools: 7 Compared by Their Lead Source
Seven AI lead generation tools compared on where the leads come from, how each site says they are researched, who sends and what the lowest plan costs.
Robbert Veer, Founder
13 min read
AI lead generation tools are sold for two jobs. Some build and enrich the list, and some also write and send the outreach. A team with a person who builds data workflows can look at Clay. A sales team that wants one database with sequences can look at Apollo or Amplemarket. An agency that sells websites to local businesses needs every prospect's website scored, which is the job Twip AI does inside Leadodo.
This page compares 7 tools and Leadodo. Every statement about what a product's AI does is that company's own description, read on its website on Nov 10, 2026. We tested none of them. Nothing here says how well one works.
What are AI lead generation tools?
AI lead generation tools are software that uses AI models to find, research, score or write to potential customers. AI lead generation software is the same category under another name. The 7 products on this page fall into two groups.
- Tools sold to build and enrich the list. Clay, Apollo and Amplemarket.
- Tools sold to build the list and also run the outreach. AiSDR, 11x, Artisan and Salesforge.
The steps themselves are explained elsewhere. Our guide to AI lead generation covers what the AI does at each of 8 steps and where a person steps in. This page is the product record that goes with it.
How do the 7 AI lead generation tools compare?
They differ most in where the leads come from and in what stays with you. The first table shows both. The second shows the lowest paid plan each site showed on Nov 10, 2026.
| Tool | Where the leads come from | How its site says leads are researched or scored | Who sends, and on which channels | What stays with you |
|---|---|---|---|---|
| Clay | Data bought from other providers in its marketplace. No count of its own | Names Claygent AI research agents, signals tracking, and account and lead scoring | Email campaigns on paid plans | Building the workflow and choosing the data |
| Apollo | A database it says holds 240M+ contacts and 30M+ companies | 65+ filters and lead scoring. Says its AI agents research and build lists | Email and phone | Setting the filters and choosing the records |
| Amplemarket | A database it says holds 200M+ verified contacts | Names intent signals, job change alerts and AI tools called Duo | Email, calls and social | Running the search and choosing the contacts |
| AiSDR | It says prospecting covers 2B+ profiles. You can also bring your own list | Says its agent reads recent posts and company news before it writes | Email and LinkedIn, with call tasks for your team | Reviewing the audience and sample messages before launch |
| 11x | A database it says holds 400M contacts | Says it researches every contact and company, with signals such as hiring and funding | Email, social and a power dialer | Setting approval thresholds, and making the calls |
| Artisan | A database it says holds 250M+ verified contacts | Names intent signals, and filters by title, industry and geography | Approvals where you set them, and dialing | |
| Salesforge | A Lead Finder it says holds 500M+ verified B2B leads | Says its agent, Agent Frank, researches each prospect, their company and buying signals | Email and LinkedIn | Review of each message in Co-Pilot mode |
| Leadodo | A Google Maps scraper and a database of 460M+ contacts | Twip AI scores every website in a search out of 100 across 10 domains | Posted letter, email and LinkedIn, run by your Outbound Machine | Choosing the trade and area, and how much to review |
The third column repeats each company's own description. Every count is the company's own figure. The last column is our reading of what each site says about search, review and calls.
| Tool | Lowest paid plan on Nov 10, 2026 | Free plan or trial |
|---|---|---|
| Clay | See its pricing page. The page did not label the billing period | Free plan |
| Apollo | Basic, $49 per seat per month, billed annually (Apollo pricing) | Free plan, and a 14-day trial on Basic and Professional |
| Amplemarket | See its pricing page | "All plans include a free trial." No length given |
| AiSDR | Pay as you go, $1.50 per person prospected, charged daily (AiSDR pricing) | No free plan or trial named. Sign-up needs no credit card |
| 11x | See its pricing page for Alice | None. Its docs say there is no published self-serve free trial |
| Artisan | Pricing on request (Artisan pricing) | None named on the pages read |
| Salesforge | Pro Plan, $40 a month, billed annually (Salesforge pricing). Agent Frank is sold next to the plans | 14-day free trial of Salesforge. None for Agent Frank |
| Leadodo | Pricing on request | Pricing on request |
Each price is the lowest paid plan the product's own page showed on Nov 10, 2026, with the billing words the page used. Where a page did not label the billing period or the unit, or gave two figures for one plan, no price is quoted.
Which AI lead generation tools build and enrich the list?
Clay, Apollo and Amplemarket. Clay sells data from other providers through its marketplace. Apollo and Amplemarket each search one database and add sequences to it.
Clay
The pages read on Clay's site give no count of contacts or companies. Clay sells data from other providers through its marketplace. You pay in data credits, which the pricing page says "are used when you purchase data from Clay's marketplace". The number of providers differs between three pages on the site, so no count is given here.
For the AI part, the site names Claygent AI research agents. It also lists signals tracking, account and lead scoring, waterfall enrichment, TAM sourcing and a workflow builder named Sculptor. Paid plans can launch email campaigns in Clay or through other email tools.
Pick it over Leadodo when you have a person who builds data workflows, and your leads are companies with many data points to combine. The homepage says "GTM engineers build on Clay". Leadodo is built for another job, finding businesses with weak websites and starting the conversation. Our page on Clay vs Apollo sets the two side by side.
Apollo
Apollo's data page says its database holds "240M+ global contacts" and "30M+ global companies". The page names its sources. They include a contributor network, third-party data providers, public web data and local business data from Google Maps. You search with what the site calls "65+ filters". The site also lists lead scoring and Waterfall Enrichment, which it says fills missing fields from 20+ vendors.
The homepage says its AI agents "research, build lists, write outreach, follow up, and book meetings". That is Apollo's own description. Sequences run across email and calls.
Pick it over Leadodo when you sell to companies by job title and want a database, sequences and a dialer in one product, with a free plan to start on. The homepage title reads "The AI GTM System for Go-to-Market Teams". Our page on Apollo alternatives lists other tools of this kind.
Amplemarket
Amplemarket's homepage shows "200M+" next to "verified contacts" and "70M+" next to "weekly data updates". The pages read do not say where the data comes from. To find leads, the site lists a Searcher for contacts and companies, intent signals, job change alerts, competitive intelligence and social prospecting. Enrichment and email validation are part of the same product.
Its AI tools carry the name Duo. The homepage names Duo Accounts, Duo Copilot, Duo Copywriter, Duo Inbox and Duo Voice. Sequences hold email, call and social steps.
Pick it over Leadodo when a sales team wants signals such as job changes to decide who to contact, and wants to call as well as email. The homepage lists sellers, sales leaders, founders, RevOps and marketers. That is a different job from the one Leadodo is built for.
Which AI lead generation tools also run the outreach?
AiSDR, 11x, Artisan and Salesforge. Each site says its agent finds the leads and then writes and sends the messages. Our guide to the AI SDR explains this kind of product and lists seven checks to run before one sends in your name.
AiSDR
AiSDR's pricing page says prospecting covers "2B+ profiles from LinkedIn and more", with "Waterfall enrichment using 20 data providers." The features page says "Type what you want in plain English", and that AiSDR then builds the list on demand. You can also start from a Sales Navigator list, a CSV or your HubSpot and Salesforce contacts.
For research, the home page says the agent "reads their recent posts, checks company news, looks at what's happening in their industry". The site says it then writes and sends sequences over email and LinkedIn, answers replies and books meetings. The home page says your team reviews the audience and sample messages before launch.
Pick it over Leadodo when your prospects are people you would look up on LinkedIn, and you want to pay per person prospected with no monthly fee. The home page names revenue teams and founders.
11x
11x's outbound page says you can "use our database of 400M contacts". It says lists are "built with first party data, CRM context, and third party signals". The platform page names signals from hiring, funding, tech stacks, job moves and website activity. The pages read do not name the sources of the contacts.
The site says its agent, Alice, researches every contact and company and writes each message for that one contact. It says messages are then sequenced "across email, social and rep-led calls". The Alice pricing page says "We charge per lead, not per send". A second agent, Julian, is sold for inbound leads across phone, chat and SMS.
Pick it over Leadodo when you run a revenue team and want agents for outbound and inbound leads. The home page says "For frontier revenue teams". The Alice Growth plan covers up to 5 end users and 2,000 new prospects a month.
Artisan
Artisan says it has "a database of 250M+ verified contacts" with "filtering by title, industry, geography, and company attributes". It says the data covers emails, direct dials and firmographics. It also names intent signals "to prioritize and target accounts showing buying behavior." The pages read do not name the data sources.
The site says its AI employee, Ava, handles "finding and enriching B2B leads" and "writing and sending personalized outreach". It says Ava then handles replies and turns positive replies into booked meetings. It says emails are "sent from your own domains in your reps' names."
Pick it over Leadodo when you want the data, the sequencing and the email outreach to companies from one vendor. The site lists pages for startups, small and mid-sized businesses and enterprises. Its pricing is on request.
Salesforge
Salesforge's home page lists a Lead Finder with "500M+ verified B2B leads". Its pricing page lists a "500M+ Contacts Search Engine" with Agent Frank. The pages read do not name the data sources.
Agent Frank is the AI SDR sold next to the Salesforge plans. The site says Frank can "find and process new leads based on your criteria". It says he researches each prospect, their company, buying signals and timing, and then engages prospects "on both email and LinkedIn." The site names two modes. It says that in Co-Pilot he asks for your review before sending and that in Auto-Pilot he needs no supervision.
Pick it over Leadodo when you sell to other companies and want cold email and LinkedIn in one tool, with or without the agent. The Agent Frank page says it fits sellers with contract values between $5K and $100K that target 3,000 businesses or more.
Where does Leadodo fit among AI lead generation tools?
Leadodo fits when the lead is a local business and you sell a better website or the marketing around it. It does not fit when the lead is a person with a job title at a company.
All 7 sites above name signals about a company or a person. Those signals include hiring, funding, job changes and intent. Leadodo chooses by the prospect's own website.
- Find. Leadodo finds businesses with a Google Maps scraper and a database of 460M+ contacts. Of those contacts, 100M+ are in the US, and the data is refreshed every 30 days. Lead Discovery can filter for businesses that have no website.
- Score. Twip AI scores every website in a search out of 100 across 10 domains.
- Write. Twip's findings become the opening line of each letter and email.
- Send. Your Outbound Machine runs six steps over 19 working days, and a posted letter arrives on day 1. You choose how much to review. You can review every letter and message before it goes, review a sample such as the first 100, or let your Outbound Machine send without review.
For an agency, the weak website is the reason to write. Our guide to lead scoring with the website as the score explains the method.
Now the limits. Leadodo is built for one job, finding businesses with weak websites and starting the conversation. It is software for web design and marketing agencies. If your buyer is a head of sales at a software company, start with one of the 7 tools above, which do other jobs. Keep your CRM for what follows.
Leadodo never contacts anyone itself. You send, under your own name.
How do you choose AI lead generation software?
Start from your lead, then ask four questions of each tool. All four can be answered from the vendor's own site.
- What is a lead for you? A person with a job title, or a business with an address. Six of the 7 sites count their data in contacts, profiles or leads.
- Where does the data come from? Apollo's data page names its sources. The pages read for Amplemarket, 11x, Artisan and Salesforge do not name theirs.
- What decides who gets a message? A filter you set, a signal the tool tracks or a score. Ask to see the reason behind 20 leads in your own market.
- What does the price count? Apollo counts seats and credits, AiSDR counts people prospected and Artisan sizes its plans by lead volume.
Questions
What are the best AI lead generation tools?
This page does not rank the 7, and we tested none. The best AI lead generation tools for you are the ones whose leads match your buyers. A team that sells to companies by job title has seven to compare here. An agency that sells websites to local businesses should start from the business and its website.
Are there free AI lead generation tools?
Two of the 7 sites list a free plan, Clay and Apollo. Amplemarket says "All plans include a free trial", and Salesforge's pricing FAQ names a 14-day free trial, with none for Agent Frank. AiSDR, 11x and Artisan name no free plan or trial on the pages read. AiSDR says sign-up needs no credit card.
Where do AI lead generation tools get their data?
Three of the 7 sites say where the data comes from. Apollo's data page names a contributor network, third-party providers, public web data and local business data from Google Maps. Clay sells data from other providers. AiSDR says its profiles come "from LinkedIn and more". The pages read for the other four do not name their sources.
Do AI lead gen tools work for local businesses?
Six of the 7 sites count their data in contacts, profiles or leads. In our notes of Nov 10, 2026, Apollo's data page is the only one that names local business data from Google Maps among its sources. An agency that sells to local businesses needs the business as the lead, with its website. Leadodo finds businesses with a Google Maps scraper and a database of 460M+ contacts.
What is the difference between AI lead generation tools and AI sales tools?
AI lead generation tools cover the road to a first reply. That means finding, researching and contacting prospects. AI sales tools is the wider label, and it also takes in writing coaches and agents that answer replies. Six of the 7 products here are also on our page of AI sales tools for agencies, sorted by the job they are sold for.
Checked on Nov 10, 2026. Every detail about another product comes from its own website on that date. If a detail about your product is out of date, tell us and we will correct it.
Next step. See how Twip AI scores a website across 10 domains. See AI analysis.
