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Description

A lightweight variant of GPT-5.4 optimized for batch processing, offering strong reasoning and coding capabilities in a faster, more efficient model with a 400k token context window.

OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.

I/O price /1M

$0.375/$2.25

$5.00/$30.00

Input /1M

$0.375

$5.00

Output /1M

$2.25

$30.00

Cached in /1M

$0.0375

$0.5

Context

400K

Δ input since launch

—

Δ output since launch

—

Released

Mar 2026

Apr 2026

Status

—

Provider

OpenAI