Explore OpenAI's GPT-5.4 Pro Model

Unlock advanced reasoning and multi-modal capabilities with GPT-5.4 Pro.

Input: text · image · file Output: text Context: 1,050,000 tokens Release: 2026-03-05

GPT-5.4 Pro, released by OpenAI on March 5, 2026, is designed for complex tasks with enhanced reasoning capabilities. It features a context window of over 1 million tokens, allowing for 922,000 tokens of input and 128,000 tokens of output. This model supports multiple input modalities, including text, images, and files, while providing text output. With its optimized performance for step-by-step reasoning and instruction following, GPT-5.4 Pro is particularly effective in agentic coding, long-context workflows, and multi-step problem solving. Its versatility makes it suitable for a wide range of applications.

Use Cases

Here are a few ways teams apply OpenAI: GPT-5.4 Pro in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Create complex code with agentic capabilities

Analyze long documents efficiently

Generate detailed responses from images

Solve intricate problems step-by-step

Handle diverse input types seamlessly

Key Features

A quick look at the capabilities that make this model useful in real projects.

1M+ token context window for extensive tasks

Supports text, image, and file inputs

Optimized for step-by-step reasoning

Excels in agentic coding and long-context workflows

Provides accurate multi-step problem solving

Specs

Overview

Vendor
openai

Model ID
openai/gpt-5.4-pro

Release
2026-03-05

Modalities & context

Input
text · image · file

Output
text

Context
1,050,000 tokens

Parameters & defaults

Supported parameters: include_reasoning, max_tokens, reasoning, response_format, seed, structured_outputs, tool_choice, tools

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: OpenAI: GPT-5.4 Pro

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Ready to try OpenAI: GPT-5.4 Pro?

Chat with GPT-5.4 Pro

up.end

/ˌəpˈend/

verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.

Privacy Terms