Updated October 14, 2026
Best AI tools for following up with leads
If following up with leads is taking hours each week, this stack of 3 tools can take most of it off your plate. Prices are starting prices from each tool's site, checked October 14, 2026.
Estimated monthly cost: $59.99/mo
| Tool | What it does here | Starting price | Setup time | Difficulty |
|---|---|---|---|---|
| HubSpot | Holds every lead and sends follow up sequences. | $20/seat/mo Starter Customer Platform list price. New customer discounts may apply. Free CRM available. | 30 min | Easy |
| Zapier | Pushes new leads from forms into HubSpot. | $19.99/mo Professional, billed yearly. $29.99 billed monthly. Free plan with 100 tasks. | 20 min | Easy |
| ChatGPT | Drafts personal follow up emails in seconds. | $20/mo Plus plan. Free plan available. | 5 min | Easy |
| Claude | Drafts personal follow ups from lead notes and pulls them into HubSpot through Zapier MCP. | $20/mo Pro, billed monthly. $17/mo billed yearly. Free plan available. | 15 min | Easy |
| Google Gemini | Drafts replies right in Gmail and logs leads in Sheets. | $19.99/mo Google AI Pro. Free plan available. | 15 min | Easy |
| Grok Bot | Runs a routine that checks new leads every few minutes and drafts the first reply in your CRM. | check site No standalone price found. Included with eligible paid plans with weekly usage. Check the official site for current plans. | 1 hr | Medium |
How to set it up
- Create a free HubSpot account and import your lead list.
- Connect your web form to HubSpot with a Zapier zap.
- Write a 3 email follow up sequence with ChatGPT, then load it into HubSpot.
Pick your AI assistant
Any of these can be the AI part of this stack. Pick the one that fits the apps you already use. ChatGPT is here as a baseline for comparison.
Claude
How it handles lead follow up: Drafts personal follow ups from lead notes and pulls them into HubSpot through Zapier MCP.
Plan: Claude Pro, $20/mo. $20 billed monthly or $17/mo billed yearly. Free plan available. Max from $100/mo. Team plan for 2 to 150 people. Last checked 2026-10-14. Official pricing
Strengths: Strong, natural writing. Handles long files well. Connectors and Claude in Chrome on paid plans.
Limits: Usage limits reset every few hours. Acts on other apps only through connectors or Chrome, so set those up first.
Best add-ons for this task: Zapier MCP, HubSpot
Google Gemini
How it handles lead follow up: Drafts replies right in Gmail and logs leads in Sheets.
Plan: Google AI Pro, $19.99/mo. Google AI Pro. Google AI Plus from $4.99/mo and Ultra from $99.99/mo. Free tier available. Gemini in Google Workspace business plans: check site. Last checked 2026-10-14. Official pricing
Strengths: Built into Google apps you may already use. Large file and context limits. Includes 5 TB of storage.
Limits: Works best inside Google. Fewer links to outside apps like CRMs without an automation tool.
Best add-ons for this task: Google Workspace, HubSpot
Grok Bot
How it handles lead follow up: Runs a routine that checks new leads every few minutes and drafts the first reply in your CRM.
Plan: Eligible paid plan, check site. No standalone price found on the official site. Included with eligible paid plans with weekly usage. Check the official site. Last checked 2026-10-14. Official pricing
Strengths: Each bot has its own cloud computer and browser, so it can work in your real tools and keep going while your laptop is closed. Routines run on a schedule.
Limits: Price depends on your plan, so check the site. Some sites block automation or need you to log in. Review anything it drafts before it goes to customers.
Best add-ons for this task: Grok Bot routines, HubSpot
ChatGPT (baseline)
How it handles lead follow up: Writes follow up messages you paste or send with a Zap.
Plan: ChatGPT Plus, $20/mo. Plus plan. Go plan and a Free plan also available. Shown here as a comparison baseline. Last checked 2026-10-14. Official pricing
Strengths: Familiar, fast, good at drafts and images. Scheduled tasks on paid plans.
Limits: Needs Zapier or similar to act inside most business apps. Check that drafts sound like you.
Best add-ons for this task: Zapier, HubSpot
Side by side
| Assistant | Setup difficulty | Best for | Works with | |
|---|---|---|---|---|
| Claude | Claude Pro: $20/mo | Easy | Careful writing, long documents, and replies that sound like you | Zapier MCP, HubSpot |
| Google Gemini | Google AI Pro: $19.99/mo | Easy | Owners who already run on Gmail, Docs, Sheets and Calendar | Google Workspace, HubSpot |
| Grok Bot | Eligible paid plan: check site | Medium | Recurring work across email, CRMs and websites that you want done on a schedule | Grok Bot routines, HubSpot |
| ChatGPT | ChatGPT Plus: $20/mo | Easy | A general all-rounder, and the one most people already know | Zapier, HubSpot |
Prices last checked 2026-10-14. "check site" means we could not confirm the price on the official site.
Want the full setup guide?
Step by step screenshots, copy and paste templates, and the exact settings we use. $19 to $29, one time.
Get the full setup guidePlaceholder checkout link.
Prices change. "check site" means we could not confirm the current price, so please check the official site. Some links are affiliate links.