Why we said Watch
What it is
OpenAI’s live voice session, including outbound SIP. See the official page. This profile describes public documentation, not a Loaded Tokens hands-on test.
Who it is for
Teams placing or receiving voice sessions through the API. The recommendation is scoped to that job.
The evidence behind Watch
The changelog opens SIP to every organization. The pricing page splits the session fee from the model fee. The source page is the receipt. No speed ranking or reliability score is implied.
Pricing and the catch
gpt-live-1 is $0.05 a minute, billed per second. Backend model and tool use are charged separately. Realtime audio tokens are a different table, at $32 in and $64 out per million for gpt-realtime-2.1 audio. Public pricing or license checked November 7, 2026. Amounts are as stated on that page. Tax, region, annual billing, and extra usage can change the bill.
A sensible first workflow
Place one test call to a number you control and read both lines on the invoice. This is a suggested evaluation, not a test we ran.
Bottom line: Watch until you have seen the two charges together.