What is the context window of GPT-5.4 Pro?

GPT-5.4 Pro has a context window of 1M tokens.

When was GPT-5.4 Pro released?

GPT-5.4 Pro was released on 2026-03-01.

GPT-5.4 Pro

Name: GPT-5.4 Pro
Author: OpenAI

gpt-5.4-pro

ProprietaryMultimodal

About

GPT-5.4 Pro is OpenAI's most advanced GPT-5.4 model with enhanced reasoning capabilities and up to 1M token context, designed for the most demanding enterprise agentic tasks.

GPT-5.4 Pro has a 1M-token context window.

Capabilities

VisionMultimodalReasoningFunction CallingTool UseStructured OutputsCode Execution

Rankings

Best LLMs for Code Generation Best AI Agents & Agentic Models Best Multimodal / Vision LLMs Best LLMs for Reasoning & Math Best LLMs for Function Calling & Tool Use Cheapest LLM APIs Best LLM APIs Best LLMs for Enterprise Best LLMs for Writing Best LLMs for Marketing Best LLMs for Customer Support

Specifications

FamilyGPT-5.4

Released2026-03-01

Context1M

ArchitectureDecoder Only

Specializationgeneral

LicenseProprietary

Trainingpretrained

Created by

OpenAI

Cutting-edge research and development.

San Francisco, California, United States

Founded 2015

Website

Links

Website