checklist.day

GPT-4o Realtime Preview (2025-06-03)

JSON →
openai multimodal
textaudio

An updated snapshot of the GPT-4o Realtime Preview model released on June 3, 2025.

Specs

context window 128K tokens
max output 4K tokens
input price $5 / 1M tokens
output price $20 / 1M tokens

Capabilities

streamingtool-usefunction-calling

Dates

releasedJun 2025
knowledge cutoffApr 2025

Resources

homepageplatform.openai.com/docs/models/gpt-4o-realtime-preview ↗
docsplatform.openai.com/docs/api-reference/realtime ↗

API

full doc /v1/models/gpt-4o-realtime-preview-2025-06-03