Retell uses OpenAI models to help power 100M monthly calls

Retell leverages OpenAI models to support 100 million monthly calls, with GPT‑6 Astra achieving top performance on its voice agent benchmark. Codex contributes to the company’s financial success, helping it reach a $1.6 million annual revenue run rate per employee.

Machine-generated by The Flow from the publisher's headline and feed description — not written or checked by a human. The full article lives at OpenAI Blog.

• llms
• agents
• benchmarks