GPT-Realtime-2.1
Realtime speech-to-speech model with configurable reasoning, tool use, and robust voice-agent behavior
Context
128,000
Max output
32,000
Input / 1M
$4.00
Output / 1M
$24.00
Providers
2
01Profile
Profile
Released
2026-07-06
Last updated
2026-07-06
Knowledge cutoff
2024-09-30
Weights
Closed
02Capabilities
Capabilities
Input
text · audio · image
Output
text · audio
Reasoning
Yes
Tool calling
Yes
Structured output
No
Attachments
Yes
Cache read
$0.40
Cache write
Not listed
03Pricing
Pricing across 2 providers
Per 1M tokens, USD. Sorted by input price. First-party row highlighted.
04History
Change history
2+ recent events since 2026-07-06
2026-07-10Addedopenaioffering→ new
2026-07-10Addedverceloffering→ new