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GPT-5.4

Paid

Our most capable and efficient frontier model for professional work.

4.5
2
New AI ToolsPaid
Inputs: text, code, fileOutputs: text, code
Type
Saas
Founded
2015
Company
OpenAI
Visit Website
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About GPT-5.4

GPT-5.4 is described as OpenAI's most powerful frontier model, designed to push the boundaries of AI capabilities with direct computer control, enabling it to interact with and manipulate user systems autonomously. It features a massive 1 million token context window, allowing it to process and reason over extremely long inputs such as extensive documents, codebases, or multi-step task sequences without losing coherence. This model excels in handling very long tasks through advanced reasoning, making it suitable for complex workflows that require sustained attention and multi-turn interactions.

Key Features

Direct computer control for autonomous system interaction
1 million token context window for processing vast amounts of data
Advanced reasoning capabilities for very long tasks
33% reduction in errors compared to previous models
Significantly improved code analysis
Enhanced document analysis for deep insights
Support for multi-step, long-horizon planning

Pros & Cons

Pros
  • Unprecedented 1M token context enables handling of massive inputs
  • Direct computer control unlocks agentic automation potential
  • Reported 33% error reduction improves reliability
  • Superior performance in code and document analysis
  • Advanced long-task reasoning for complex applications
  • Frontier-level capabilities position it as a leader in AI scaling
Cons
  • Requires paid subscription, with pricing details unavailable
  • Direct computer control raises significant privacy and security risks
  • High computational demands may limit accessibility
  • Experimental nature as a frontier model could mean instability
  • Limited public availability or documentation at this stage

Best For

Analyzing and debugging large-scale software codebases exceeding traditional context limitsAutomating repetitive computer tasks like file management or software testing via direct controlSummarizing and extracting insights from million-token documents or research papersReasoning through extended multi-step problem-solving in research or engineeringGenerating and refining complex reports from vast datasetsAssisting in long-form content creation with persistent context awareness

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FAQ

What is the context window size of GPT-5.4?
It processes up to 1 million tokens, enabling reasoning over very long inputs.
Does GPT-5.4 control my computer?
Yes, it directly controls the computer for task execution, similar to agentic AI features.
How does it improve on error rates?
It is claimed to reduce errors by 33% compared to prior models.
What are its strengths in analysis?
Significantly improved code and document analysis capabilities.
Is GPT-5.4 available now?
It is presented as OpenAI's frontier model, but check official OpenAI sources for release status.
What pricing model does it use?
Paid SaaS model, though specific starting prices are not detailed.