How many parameters does GPT-5.4 have?

Parameter count for GPT-5.4 is not available. See the Hugging Face model page for full specifications.

GPT-5.4 was published by OpenAI on Hugging Face.

GPT-5.4

Name: GPT-5.4
Author: OpenAI

Multimodalby OpenAI·Model page ↗

OpenAI's flagship multimodal model with 1M-token context for advanced text and image reasoning.

Model Card

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...

Author

OpenAI

Organization · ✓

openai

Details

Downloads—

Likes—

AccessClosed Source

Context1.1M tokens

Input price$2.5 /1M

Output price$15 /1M

CreatedMar 5, 2026

Updated—

View on Hugging Face

Benchmarks

Intelligence51.4

Coding71.1

Agentic41.1

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