Rocket Mortgage grew a Sierra AI agent from a proof of concept to more than 400,000 successful chat conversations and over one million outbound dials each month, per Sierra.
Reported outcomes
monthly volume
more than 400,000 successful chat conversations and over one million outbound dials each month
Source [1] · self-reported
Outcomes are reported exactly as stated by the source; we have not independently audited them.
How it works
- AI agent handles client chat conversations.
- Runs outbound dialing at scale.
Risks & compliance
- Wrong or hallucinated answers to customers; needs guardrails and handoff
- Vendor-published results; not independently audited
- Regulated financial disclosures and identity verification
Build this yourself
Tools mentioned & how to build it
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Tools mentioned
- Sierra (Sierra)
Conversational AI agents for customer service, chat and voice.
Build a version yourself
- HubSpot (Breeze agents)
SMB-friendly CRM with Breeze AI agents for prospecting and support. - n8n
Open-source workflow automation with AI agent nodes; self-host or cloud. - Relevance AI
Build an 'AI workforce' of agents, e.g. BDR agents that research and book meetings.
Sources
“What started as a proof of concept in May has grown to more than 400,000 successful chat conversations and over one million outbound dials each month”Rocket Mortgage and Sierra
Grade rationale: Named organization with a quantified outcome from the vendor or the organization itself (self-reported). Automated check on Oct 17, 2026: 1/1 quotes and 1/1 outcome claims matched the source. Compiled by the Agent Casefile research desk (AI-assisted; see methodology). Spot an error? Request a correction.
