I tried Clay AI for 9 months, here's what I learned
Nine months of real usage, including what did not work, which vendor content never shows.
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How are founders using AI tools like Clay and Apollo to run outbound prospecting and personalized cold email?
The new outbound stack is data plus AI: Apollo or Clay finds and enriches prospects, an LLM drafts openers grounded in real signals like funding or hiring, and a sending tool manages deliverability. The winners use AI for research and relevance, not volume; generic AI blasts now get filtered by Gmail and ignored by buyers. Budget as much effort for domain warmup and list quality as for clever copy, because deliverability is where most founder outbound quietly dies.
Go deeper
20 resources.
Connecting Clay to email tools for hyper-personalized cold outbound
The unglamorous plumbing tutorial that makes the whole stack actually send.
Watch on YouTube youtube.com →
How to use Apollo.io: full B2B lead generation tutorial
A current soup-to-nuts walkthrough of the tool most founders start outbound with.
Watch on YouTube youtube.com →AI for sales prospecting: a complete guide
Clay's own end-to-end playbook from list building to personalized send.
Open clay.com →How to use Clay: the ultimate no-code tool for prospecting and sales
A beginner-friendly walkthrough for founders who have never touched an enrichment table.
Open salescaptain.io →Clay cold email: how to do cold outreach with Clay
Independent of Clay, so it flags the sharp edges and costs honestly.
Open woodpecker.co →Clay automation: the ultimate guide for lead gen and sales
Goes past basics into the signal-triggered workflows that make outbound feel warm.
Open blog.gtm-engineering.io →Outbound 2.0: the guide to AI-personalized outbound emails
A CEO-community playbook on what AI personalization converts at, with realistic numbers.
Open saasrise.substack.com →Apollo Academy: free B2B sales training
Free structured training on prospecting and sequences, useful even if you never pay Apollo.
Open apollo.io →Free AI prospecting course: accelerate sales with Apollo AI research
Teaches AI-assisted account research, the highest-leverage part of outbound for a founder.
Open apollo.io →A complete overview of Apollo AI
Independent summary of what Apollo's AI features actually deliver versus the pitch.
Open eesel.ai →Cold email 101: how to write emails people actually read and reply to
Data from millions of real cold emails: write at a 5th-grade level, 25 to 50 words, like you talk.
Open lavender.ai →Lavender AI review: is it still the best AI email coach?
Whether an AI email coach is worth it for a founder writing 20 emails a day.
Open woodpecker.co →Will Allred's cold email framework
The Lavender co-founder's framework in one post you can apply on your next email.
Open linkedin.com →ChatGPT for sales prospecting: 10 prompts from research to outreach
Ten copy-paste prompts covering the full prospect-to-email chain for zero cost.
Open blog.hubspot.com →Cold email in 2026: domains, deliverability, replies
The current rules of the road, from secondary domains to Gmail's 0.1% complaint threshold.
Open unifygtm.com →How to achieve 90%+ cold email deliverability
Practical warmup and volume schedules so your AI-written emails actually land in inboxes.
Open instantly.ai →Email deliverability guide: SPF, DKIM, warmup and everything that gets you to the inbox
The technical checklist founders skip and then wonder why replies stopped.
Open smartlead.ai →Clay: AI outbound that scales your best rep's personalization
The category-defining enrichment-plus-AI workflow tool behind most modern outbound.
Open clay.com →HubSpot Breeze prospecting agent
What agentic prospecting looks like when it lives inside the CRM you may already use.
Open hubspot.com →Terms in this answer
More in CRM & Sales Calls
- How do founders use AI notetakers and call analysis (Granola, Fireflies, Gong-style tools) to close more deals? 20 →
- Why let AI update the CRM, draft follow-ups, and forecast pipeline? 23 →
- Which AI notetaker should I actually pick: Granola, Fathom, Fireflies, or Otter, and what will it cost? 18 →
- Do I need a CRM at the pre-seed stage, and should I pick an AI-native CRM like Attio over HubSpot or Zoho? 18 →
- Do AI SDRs actually work, or are they hype? 16 →
- How can I use AI to practice sales calls and coach myself when I have never sold before? 16 →
- Is it legal and OK to record sales calls with an AI notetaker? 17 →
- How do founders turn sales call transcripts into product insights and sharper messaging? 19 →
- How do founders use AI for pre-call research and meeting prep? 18 →
- How can AI help me qualify and score leads so I chase the right deals? 19 →
- What does an affordable AI sales stack look like for an early-stage Indian startup? 19 →
Also in Starting Up
The same ground, over in Get your first customers, our Starting Up track.
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