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GPT-Realtime-1.5

OpenAI · gpt-realtime-1-5

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Speech generation model for controllable voice, narration, and audio delivery

Specification

openai listing

Context
32K
Max output
4K
Released
2026-02-23
Knowledge cutoff
Retires
2027-08-24
Open weights
no
Input
text, audio
Output
text, audio

Price

US dollars per million tokens · openai list price

Input
$4.00
Output
$16.00
Cache read
$0.40

Available from 4 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
openaivendor$4.00$16.00$0.4032K4K
azure$4.00$16.00$0.4032K4K2027-08-24
fastrouter$4.00$16.0032K4K
vercel$4.00$16.00$0.4000

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02azureCache read$4.00
2026-09-15azureCache read$0.40

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