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Top-Tier Reasoning

GPT 5.4 Pro

GPT-5.4 Pro is OpenAI's highest-capability model, delivering unmatched performance for the most demanding professional tasks like complex coding, deep research, and long-horizon workflows such as financial modeling and legal analysis. Unlock superior reasoning depth, improved computer-use, and decision-ready outputs that prioritize quality over speed.

1.05M Context
Top-Tier Intelligence
Aug '25 Knowledge

Available for Chat, Vision, and File Uploads.

Performance Benchmarks

MMLU Pro
80.6%
GPQA
66.6%
HLE
Included in Intelligence Index (no isolated score)

How do you want to interact?

Start a Conversation

Ask anything.
Have a natural conversation, brainstorm ideas, draft emails, or ask for advice.

Start Chatting

Use a Persona

Specialized Experts.
Instruct the AI to act as a Coding Tutor, Marketing Expert, or Travel Guide.

Pick a Persona

Why use GPT 5.4 Pro?

Native Computer Use

Autonomously operates computers by observing screenshots, issuing mouse/keyboard commands, and executing workflows like clicking, typing, and navigating apps

1 Million Token Context Window

Supports up to 1M tokens for processing entire codebases, long documents, and extended tasks without losing context

Tool Search

Efficiently searches and selects from large tool ecosystems, reducing token usage by 47% while maintaining accuracy

Capability Examples

Agentic Computer Use
Hey GPT 5.4 Pro, open my browser, search for latest stock prices, and create a summary report in a new file.
Opening browser... Searched stocks. Summary report saved as stocks_report.txt: AAPL up 2.3%, TSLA down 1.1%. Full details attached. Done!
Deep Web Research
GPT 5.4 Pro, research obscure historical event: the 1927 Solway Firth disappearance, synthesize from multiple sources into a timeline.
Timeline compiled: 1927-06-14: Roger Ratterman vanishes mid-photo. Sources: BBC archives, local papers, declassified files. Key theories: alien abduction (debunked), spy incident. 89.3% BrowseComp accuracy applied.

How to use

1
Go to Chat

Navigate to the "AI Chat" page.

2
Select Model

Ensure GPT 5.4 Pro is selected.

3
Type Prompt

Ask a question or paste code.

4
Interact

Refine the answer by replying to the AI.

Compare LLMs Side-by-Side

Is GPT 5.4 Pro better than Claude 3.5 or Gemini? Test same prompts simultaneously in the Chat Playground.

Open Chat Playground

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