# OpenAI — Build more natural voice experiences with GPT‑Live‑1 in the API

- Company: OpenAI (openai.com)
- Announced: 2026-09-10
- Category: api-release
- Coverage: 4 outlets
- Announcement: yes
- Group: covered
- Source: https://openai.com/index/introducing-gpt-live-1-in-the-api
- Record: https://forck.live/items/9944-build-more-natural-voice-experiences-with-gpt-live-1-in-the-api
- Subject: GPT / ChatGPT / API
- Models affected: GPT‑Live‑1

OpenAI launched GPT‑Live‑1 in the API, a full-duplex voice model that can listen and speak simultaneously, with capabilities like interruption handling, tone control, and telephony support. The release includes performance benchmarks showing improvement over GPT‑Realtime‑2.1 on Full Duplex Bench and top ranking on Tau3 when paired with GPT‑6 Astra. Developers can delegate reasoning to backend models such as GPT‑6 Astra or third-party models.

## Evidence

Verbatim from https://openai.com/index/introducing-gpt-live-1-in-the-api:

> We’re launching GPT‑Live‑1 in the API, giving developers a powerful, natural voice model for building voice-enabled apps and business workflows.

## Around this story

Outlets this record can name and link:

- The Decoder — OpenAI's GPT-Live-1 API lets developers build apps that talk and listen at the same time: https://the-decoder.com/openais-gpt-live-1-api-lets-developers-build-apps-that-talk-and-listen-at-the-same-time
- The New Stack — OpenAI split a voice model's brain. Then one team deleted 23,000 lines of code.: https://thenewstack.io/gpt-live-1-voice-api
- TestingCatalog — OpenAI launches GPT-Live-1 for full-duplex voice agents: https://testingcatalog.com/openai-launches-gpt-live-1-for-full-duplex-voice-agents
- Unite — OpenAI’s GPT-Live-1 Arrives in the API at $0.05 Per Minute: https://unite.ai/openais-gpt-live-1-arrives-in-the-api-at-0-05-per-minute

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