# How CallRail uses AssemblyAI

**2x** increase in customers using conversation

As published on [assemblyai.com](https://www.assemblyai.com/customers/callrail-customer-story). Captured by usedby on 2026-10-10.

- Company: [CallRail](https://www.usedby.ai/companies/callrail.md)
- Tool: [AssemblyAI](https://www.usedby.ai/tools/assembly-ai.md)
- Industry: [Marketing Tech](https://www.usedby.ai/companies/industry/marketing-tech-martech.md)
- Teams: Engineering Product Design

## What the story says

CallRail, a lead intelligence software company, builds conversation intelligence features on AssemblyAI's speech-to-text, summarization, sentiment analysis and LeMUR models. These power call transcription, auto-scoring and categorization of calls, and Call Summaries for its customers.

Summary written by usedby from the source page, in English. The figures are those of AssemblyAI and CallRail, not ours.

> Through this initial partnership with AssemblyAI, CallRail improved its call transcription accuracy by up to 23% and doubled the number of customers using its conversation intelligence product.

- **23%**: “Through this initial partnership with AssemblyAI, CallRail improved its call transcription accuracy by up to 23%”
- **50%**: “50% less time spent reviewing and analyzing calls”
- **60%**: “60% less time spent qualifying leads”
- **10%**: “10% increase in leads from improved marketing”

> We're focused on delivering incredible products that meet the specific needs of our customers. To do that effectively and efficiently, it makes sense for us to partner with experts in AI versus building something from the ground up—which can feel like a space race and act as a barrier to bringing valuable solutions to market in a timely manner.
>
> Ryan Johnson, CHIEF PRODUCT OFFICER, CALLRAIL

Source: [assemblyai.com](https://www.assemblyai.com/customers/callrail-customer-story), captured 2026-10-10.

## What usedby checked

We compared the story with its live page on 2026-10-10.

- Checked: the figure 2x is on the page; its label is our wording.
- Checked: the passage quoted above is copied word for word from the page, near the name of CallRail.
- Checked: CallRail uses AssemblyAI. Confirmed line. Latest check across sources: 2026-10-10.
- Not checked: the result itself. We quote it; we did not measure it.

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Source: https://www.usedby.ai/case-studies/callrail-assembly-ai · How we check: https://www.usedby.ai/methodology