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OpenAI GPT-5.4 Released: Autonomous Computer Use, Features, and Gemini vs. Claude Comparison

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GPT-5.4 Thinking

Key Takeaways

  • What is GPT-5.4? Released by OpenAI on March 5, 2026, GPT-5.4 is a highly advanced, autonomous AI model capable of natively operating your computer’s mouse and keyboard to execute complex tasks,,.
  • Unmatched Performance: It outperforms human professionals in knowledge work, scoring 83.0% on the GDPval professional skills test and an impressive 75.0% on the OSWorld desktop operation benchmark,.
  • Core Upgrades: Key features include a massive 1-million token context window, real-time steering, and an optimized tool search mechanism that reduces processing token costs by up to 47%.
  • GPT-5.4 vs. Competitors: While GPT-5.4 dominates in autonomous system building and complex coding, Google Gemini 3.1 Pro excels in Google Workspace integration, and Anthropic Claude Opus 4.6 remains the top choice for human-like writing and UI/UX design,.

What is OpenAI’s GPT-5.4?

Introducing GPT-5.4

(出典:OpenAI

Announced on March 5, 2026, GPT-5.4 is OpenAI’s most capable AI model to date, transforming ChatGPT from a conversational assistant into an autonomous digital worker,. It successfully integrates the advanced logical reasoning of GPT-4 and GPT-5.2 with the specialized coding capabilities of GPT-5.3 Codex into a single, unified model.

Historically, users had to switch between different models for writing and programming. With GPT-5.4, a single model can seamlessly handle everything from complex logical reasoning to professional-grade code generation.

Crucially, GPT-5.4 has achieved unprecedented reliability in professional knowledge work. In the GDPval test—an assessment measuring practical capabilities across 44 different professions, such as creating sales presentations or analyzing financial spreadsheets—GPT-5.4 outperformed human professionals 83.0% of the time. This is a massive leap from GPT-5.2’s score of 70.9%. Furthermore, AI hallucinations have been significantly mitigated; compared to its predecessor, GPT-5.4 reduces false claims by 33% and overall errors by 18%.

GPT-5.4 Core Features and Updates: How It Works

GPT-5.4 スプレッドシート

(出典:OpenAI

GPT-5.4 introduces several groundbreaking capabilities designed to automate repetitive workflows and handle massive datasets,.

1. Native Autonomous Computer Use

The most revolutionary feature of GPT-5.4 is its native computer use capability. The AI can visually process your screen, click the mouse, and type on the keyboard just like a human user. For example, you can prompt it with: “Find last month’s sales data in Excel, analyze the key points, and create a 3-slide PowerPoint summary.” The AI will autonomously navigate across multiple desktop applications to complete the task. It scored 75.0% on the OSWorld desktop operation benchmark, surpassing the human average of 72.4%.

2. 1-Million Token Context Window

GPT-5.4 can process up to 1 million (1M) tokens in a single prompt. This massive context window allows users to upload entire specialized textbooks, corporate quarterly reports, or extensive software codebases and ask the AI to summarize the contents or identify underlying issues.

3. Real-Time Steering

Users can now interrupt and course-correct the AI while it is generating a response. This real-time steering eliminates the need to restart prompts from scratch, creating a highly collaborative, human-like workflow.

4. Optimized Tool Search

Previously, linking an AI agent to external tools (like APIs or databases) required feeding the model comprehensive manuals, resulting in wasted processing costs. With the new “Tool Search” feature, GPT-5.4 dynamically retrieves only the necessary tool information on demand. This optimization reduces token usage by up to 47%, making the AI significantly faster and more cost-effective.

GPT-5.4 Pros and Cons for Business Workflows

Before integrating GPT-5.4 into your daily operations, consider these key advantages and limitations.

Pros:

  • Ultimate Time-Saver: Delegate complex, multi-app workflows entirely to the AI.
  • Professional-Grade Deliverables: Automatically generate business-ready spreadsheets and presentations.
  • High ROI: Optimized processing allows for high-speed, low-cost execution of bulk tasks.

Cons:

  • Mechanical UI Design: While it excels at writing complex front-end code, its visual design capabilities can sometimes feel mechanical, lagging slightly behind human designers and certain competitor AIs.
  • Over-Autonomy: Because the AI operates autonomously, vague initial prompts can cause the agent to take unintended actions or create disorganized outputs.

GPT-5.4 Pricing and Availability: Is it Free?

GPT-5.4 Thinking 操作画面

(出典:OpenAI

No, GPT-5.4 is not currently available on the free tier. As of March 5, 2026, GPT-5.4 is exclusively available to users on ChatGPT Plus, Team, Pro, and Enterprise plans.

Paid users can access these powerful reasoning and autonomous agent features by selecting “GPT-5.4 Thinking” or “GPT-5.4 Pro” from the model dropdown. Free-tier users have been upgraded to “GPT-5.3 Instant,” a high-speed model optimized for daily conversational tasks.

Important Usage Guidelines:

  • Rate Limits: Even on paid tiers, submitting a high volume of complex prompts in a short period may trigger usage caps.
  • Spot-Checking is Mandatory: While hallucinations have decreased dramatically, they are not zero. Always have a human review crucial business documents and financial data.
  • Precision Prompting: Clearly specify the what, how, and format in your system prompts to prevent the highly autonomous AI from deviating from your goals.

GPT-5.4 vs. Gemini 3.1 Pro vs. Claude Opus 4.6: Which AI Should You Choose?

Gemini、ChatGPTロゴ

While GPT-5.4 is a powerhouse, it faces stiff competition from Google’s Gemini 3.1 Pro and Anthropic’s Claude Opus 4.6.

TL;DR: Choose GPT-5.4 for autonomous desktop operations and system development. Choose Gemini or Claude for seamless Workspace integration, natural writing, or nuanced UI/UX design,.

FeatureOpenAI GPT-5.4Google Gemini 3.1 ProAnthropic Claude Opus 4.6
Biggest StrengthAutonomous computer use, advanced coding, exact tool executionSeamless Google Workspace integration, hyper-fast processingHuman-like writing, superior UI/UX design generation
Best ForLong-running task delegation, system architecture, data analysisRapid information retrieval, multimodal (image/video) processingBlog writing, copywriting, front-end web design
Agent AutonomyExceptionally High (Anticipates next steps without prompts)HighHigh (Tends to seek cautious confirmation)
Context Window1 Million tokens2 Million+ tokensHigh capacity (varies by model tier)

How to Maximize Your Productivity with AI Today

AI has evolved from a convenient digital dictionary into an active, capable business partner. To leverage GPT-5.4 effectively, start with these actionable steps:

  1. Identify Routine Work: List time-consuming weekly tasks (e.g., Excel data formatting, weekly slide decks) and delegate them entirely to GPT-5.4.
  2. Enhance Prompt Resolution: Instead of vague requests, provide specific roles and goals (e.g., “Using this PDF data, create a 5-slide sales training manual for new hires, including relevant charts.”).
  3. Use a Multi-AI Strategy: Route logical analysis and system building to GPT-5.4, while assigning customer-facing emails and blog posts to Claude.

By delegating operational tasks to AI, you can reinvest your time into high-level strategy and creative work that only humans can do.

> OpenAI ChatGPT official page is here