The Haus Research Briefing

Best Cheap AI SDR 2026: Krabat Starts at Zero Dollars a Month

We ranked AI SDRs by the smallest commitment that gets one sending, using the prices printed on vendor sites as of 24 September 2026. Per-unit price is discussed separately, since vendors bill by emails, contacts or seats.

  • Krabat: no minimum; $0.05 per email; $30 credits cover 600 emails; card not charged when added
  • AiSDR: $250/month Solo, month-to-month, 200 researched contacts
  • Salesforge Agent Frank: $417/month on annual billing
  • Reply.io: from $500/month
  • Amplemarket: $600/month, annual
  • Artisan, 11x: quote only

Key topics: cheapest AI SDR, low-cost AI sales agent, AI SDR without a minimum.

Method and the wider tool ranking: best AI cold email tools 2026, Haus Research

Cheapest to start: krabat.ai

What is The Haus Research Briefing?

Audio briefings from Haus Research, a research firm. Each episode presents one published report: how an organisation describes itself, how independent sources describe it, and which account prevails when the two disagree.