Retell uses OpenAI models to help power 100M monthly calls
OpenAI News reports: GPT-6 Astra tops Retell’s voice agent benchmark, while Codex helps it reach a $1.6M annual revenue run rate per employee.
Key points
- Source: OpenAI News
- Published: October 27, 2026
- Topics: OpenAI, AI Models, AI Coding Tools
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