AI Rate Card

OpenAI: GPT-Realtime-2.1 · fastrouter

GPT-Realtime-2.1 is OpenAIs realtime reasoning model for complex voice-agent workflows.

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Input, $/1M $32.00

Output, $/1M $64.00

Cache read $0.40

Cache write —

Context 128 000

Max output 32 000

Accepts audio, images, text

Last checked 04.11.2026 12:00:14 UTC

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API

This model type has no common request format: see the provider's documentation.

API base URL
https://go.fastrouter.ai/api/v1

Provider's API documentation

Source: AI Rate Card, https://airatecard.com/en/c/offer%3Afastrouter%7Copenai/gpt-realtime-2.1, prices checked 2026-11-04; seller's page: https://fastrouter.ai/models/openai/gpt-realtime-2.1

Technical details

ID: offer:fastrouter|openai/gpt-realtime-2.1