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GPT-Realtime-2.1

Updated Sep 11, 2026

gpt128k context32k max outputreleased Jul 6, 2026ReasoningTool calling
Cheapest input
$4
Cheapest output
$24
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.

Provider1M input1M output1M cache read1M cache writeContext
OpenAICheapest$4Cheapest$24$0.4128k
Vercel AI Gateway$4$24$0.4128k

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