A co-founder of Persist AI launched persist.chat on Hacker News today, presenting what they're calling a "chat-based AI sales agent" that automates prospect outreach across multiple channels and follows up relentlessly until targets respond—or the sequence ends. The tool integrates with LinkedIn, X (formerly Twitter), email, and SMS to run coordinated multi-touch campaigns from a single conversational interface. Currently in early access with over 2,400 founders and sales teams already on the waitlist, Persist positions itself as an alternative to traditional campaign builders—users describe their ideal customer in plain English, and the agent handles everything else.

The Agent Finds Prospects and Writes Personalized Messages

Persist ships with built-in access to what they describe as a vast contact graph: 200M+ LinkedIn profiles searchable by role, industry, company size, location, and intent signals like recent funding or hiring activity. Users can also tap into an X social graph filtered by posting behavior and followers, plus verified professional email lists enriched for deliverability. The agent takes this contact data and drafts individualized messages for every person in the sequence—referencing their company, role, listing, or relevant signals it surfaces during prospecting. Those without existing lists can describe a target persona ("Founders who raised in the last 90 days," "Buyers looking under $1M") and watch the agent build a qualified prospect list from scratch.

Reply-Stop: The Core Philosophy

The product name says it all—Persist follows up until targets reply. Standard sequences run on a configurable cadence (the example shows Day 0 email opener, Day 1 text nudge if no response, Day 3 follow-up with proof or case study angle, Day 7 LinkedIn touch), but users can set their own timing or let the agent decide based on engagement signals. The moment a prospect responds to any channel, the sequence halts automatically and routes the reply into a unified inbox where the user can review and respond—or let the agent draft replies for approval. This "reply-stop" behavior is positioned as both a time-saver and a deliverability safeguard: staying out of spam folders by stopping after positive engagement signals.

Control Mechanisms and CRM Integration

Recognizing that fully autonomous outbound sequences raise compliance concerns, Persist includes review-and-approve workflows before anything sends—users can also flip the system to full autopilot once they've validated message quality. The platform syncs with existing CRMs, accepts messy spreadsheets, or operates independently on net-new prospecting. Pipeline attribution shows replies, meetings booked, and revenue by channel so users can identify which touchpoints convert best and instruct the agent accordingly.

Early Access Pricing and Availability

Persist is free during early access with no credit card required—users drop an email address and receive their invite in batch rollouts that include full contact graph access. The demo interface runs live without signup, letting visitors test starter prompts like "Find Mission buyers under $1M" to see how the agent finds leads and constructs a sequence.

Key Takeaways

  • Persist automates 4-touch sequences across email, SMS, LinkedIn, and X from a single chat interface
  • Built-in contact graph covers 200M+ LinkedIn profiles plus X social data and verified business emails
  • Reply-stop behavior halts outreach automatically when targets engage—no manual intervention required
  • Free during early access with batch onboarding; demo available at persist.chat without account creation
  • Review-and-approve controls address compliance concerns before flipping to full autonomy

The Bottom Line

This is the SDR team compression play we've seen coming for years—turning what used to require a stack of tools and multiple humans into a single conversational interface. Whether you trust it enough to go fully autonomous is your call, but Persist at least gives you that dial rather than forcing automation on day one. Worth watching as early access rolls out.