GPT-Live 1: model ids and price

How to call it

2 ways to use GPT-Live 1, with the model id each provider expects.

Providers, model ids, endpoints and docs for GPT-Live 1
Provider	Model id	Endpoint	Docs
OpenAI API	`gpt-live-1`	`https://api.openai.com/v1/live/sessions`	developers.openai.com
Web app			chatgpt.com

Pricing

Prices for GPT-Live 1
Per minute	$0.05

As published: “per minute of voice session (billed per second); backend model and tools billed separately”.

Source: developers.openai.com, checked 16 October 2026.

Specs

Input: Audio and text
Output: Audio and text
Context window: Not published
Max output: Not published
Open weights: No
Licence: Proprietary
Training cutoff: July 2025
Released: 8 July 2026
Status: Current
Type: Speech and audio

What stands out

What its maker marketed at launch, and what people found later, each with its source.

Full-duplex voice

Listens and speaks at the same time, delegating reasoning and tool use to a backend agent model.

Source: developers.openai.com
New Live API

Served on a dedicated v1/live/sessions endpoint rather than Realtime.

Source: developers.openai.com
Replaced turn-based Advanced Voice Mode in ChatGPT

Since 2026-07-08 GPT-Live-1 (paid tiers) and GPT-Live-1 mini (default, all users) power ChatGPT Voice, with backchannels (‘mhmm’) and background hand-off of hard questions to GPT-5.5.

Source: techcrunch.com

Notes

Launched in ChatGPT 2026-07-08 (GPT-Live-1 for Go/Plus/Pro, GPT-Live-1 mini default for Free); ChatGPT desktop (macOS/Windows) ~2026-07-23; API GA 2026-09-10 per changelog (earlier preview around 2026-07-31). gpt-live-1-mini is ChatGPT-only: not in the API models catalog and developers.openai.com/api/docs/models/gpt-live-1-mini returns 404 (checked 2026-09-29). ChatGPT Voice limits (Unite.AI, 2026-09-23): Free limited mini, Go 3 h mini, Plus 3 h GPT-Live-1, Pro $100 15 h, Pro $200 unlimited; Enterprise/Edu 1.25 credits/min or $0.05/min. Since 2026-09-23 Voice can use plugins/connected apps and runs inside ChatGPT Work. Knowledge cutoff 2025-07-31. Concurrency 25-500 sessions by tier. No image/video input. Not listed on Azure or OpenRouter. Since 2026-10-15 ChatGPT Voice is moving to GPT-Live-1.1 (and GPT-Live-1.1 Quip in place of GPT-Live-1 mini), rolling out gradually; gpt-live-1 remains the API model until GPT-Live-1.1 reaches the API (“coming soon”, checked 2026-10-16). OpenAI’s launch post returned 403 to our fetcher; ChatGPT facts from TechCrunch.