# Retell uses OpenAI models to help power 100M monthly calls

Source: https://openai.com/index/retell-ai
Published: 2026-10-27
Status: unreviewed source report

## Source excerpt (up to 25 words)

> GPT-6 Astra tops Retell’s voice agent benchmark, while Codex helps it reach a $1.6M annual revenue run rate per employee.

## Review question

Compare accepted end-to-end outcomes, tool permissions, intervention rate, recovery behavior and total cost on the same workload. A polished demo does not establish unattended reliability.

No independent proof check or claim of peer review.