Realtime speech-to-speech model with configurable reasoning and reliable tool use for voice agents
Specification
openai listing
Context
128K
Max output
32K
Released
2026-05-07
Knowledge cutoff
2024-09-30
Retires
2027-01-20
Open weights
no
Input
text, audio
Output
text, audio
Price
US dollars per million tokens · openai list price
Input
$4.00
Output
$24.00
Cache read
$0.40
Available from 3 hosts
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | openai | Output | $16.00 |
| 2026-09-04 | openai | Output | $24.00 |
| 2026-09-06 | azure | Cache read | $0.40 |
| 2026-09-25 | azure | Cache read | $0.40 |
| 2026-09-06 | azure | Input | $4.00 |
| 2026-09-25 | azure | Input | $4.00 |
| 2026-09-06 | azure | Output | $24.00 |
| 2026-09-25 | azure | Output | $24.00 |
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