GPT-Realtime-2.1
Updated Sep 11, 2026
gpt128k context32k max outputreleased Jul 6, 2026ReasoningTool calling
Official (OpenAI)
$24
output per 1M tokens
Providers
2
offering this model
Spread
1.0×
max / min output
Offers
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge.
| Provider | 1M input | 1M output | 1M cache read | 1M cache write | Context |
|---|---|---|---|---|---|
| OpenAI | Cheapest$4 | Cheapest$24 | $0.4 | — | 128k |
| Vercel AI Gateway | $4 | $24 | $0.4 | — | 128k |
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