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Cartesiaupdated May 27, 2026 · saas · sales

Sales Representative with Lead Extraction and Company Research

A sales voice agent that extracts structured lead information during conversations and performs automated company research. Uses a three-agent architecture with dedicated agents for conversation handling, lead extraction, and company research via web search. Maintains stateful lead accumulation across the conversation.

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The numbers

latency—

cost / min—

frameworkCartesia

The stack

telephonyWeb Only

speech-to-textCartesia STT

llmClaude Haiku 4.5

text-to-speechCartesia Sonic-3

System prompt

No prompt published.

Config

config.json

{
  "tools": [
    {
      "name": "extract_leads",
      "description": "Extracts structured lead information from conversation"
    },
    {
      "name": "research_company",
      "description": "Performs automated company research via web search"
    }
  ],
  "chat_agent_model": "anthropic/claude-haiku-4-5-20251001",
  "researcher_model": "anthropic/claude-opus-4-20250514",
  "web_search_enabled": true,
  "leads_extractor_model": "anthropic/claude-haiku-4-5-20251001",
  "stateful_lead_tracking": true,
  "company_research_caching": true
}

Tools

extract_leadsExtracts structured lead information from conversation
research_companyPerforms automated company research via web search

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