GPT-5.4

Million-token GPT-5.4

GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...

Try GPT-5.4

Specifications

Context window1M tokens

Input price$2.50 / 1M tokens

Output price$15.00 / 1M tokens

Credits per query3 cr

Released2026-03

LicenseProprietary

Features

VisionTool useJSON modeReasoning

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