Back to models
OpenAI

GPT-4o Realtime Preview

A high-performance language model developed by OpenAI. Explore specifications, capabilities, and pricing.

Model ID
openai/gpt-4o-realtime-preview

Pricing

Input Price$5.00 / 1M tokens
Output Price$20.00 / 1M tokens
Cache Read Price$5.50 / 1M tokens
Blended Price$30.50 / 1M tokens

Specifications

Context Window
32K tokens
Max Output
4.1K tokens
Knowledge Cutoff
October 1, 2023
Release Date
June 3, 2025

Capabilities

Input Modalities
Text Audio
Output Modalities
Text Audio
Features
Streaming Function calling Structured outputs Fine-tuning Predicted outputs

Quality Comparison

A relative ranking based on aggregated benchmark intelligence scores.

GPT 5.5
60
Claude Opus 4.7
57
GPT 5.4
57
Gemini 3.1 Pro Preview
57
GPT 5.3 Codex
54
Grok 4.3
53
Claude Sonnet 4.6
52
Claude Opus 4.6
52
This model currently does not have an established intelligence score.