SignalTech/AI
Retell uses OpenAI models to help power 100M monthly calls
OpenAI-powered platform hitting 100M monthly calls signals strong AI voice adoption.
Context
What happened: Retell uses OpenAI models to power 100M monthly calls, and GPT-6 Astra tops its voice agent benchmark.
Key numbers: 100M monthly calls; $1.6M annual revenue run rate per employee.
Why it matters: The benchmark result and revenue per employee figure show how OpenAI models are being used in Retell's voice agent operations.
What changed
Retell uses OpenAI models to power 100M monthly calls, and GPT-6 Astra tops its voice agent benchmark.
Why it matters
The benchmark result and revenue per employee figure show how OpenAI models are being used in Retell's voice agent operations.
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Oct 29, 2026 05:33 PM ET