GPT 5.4 Pro
OpenAI's most capable and efficient frontier model for professional work, combining powerful reasoning with reliable agentic execution at scale.
OpenAI Deep analytical reasoning with 1M token context
GPT-5.4 Pro is a text generation model developed by OpenAI, released in March 2026 as part of the GPT-5.4 family. It is one of three variants in that family — alongside the standard GPT-5.4 and GPT-5.4 Thinking — and is specifically optimized for deep analytical work through multi-path reasoning evaluation. The model supports a context window of 1 million tokens, the largest OpenAI has offered, enabling it to process extensive documents, codebases, and multi-step workflows within a single session.
GPT-5.4 Pro is designed for professional and enterprise use cases where thoroughness takes priority over speed, including scientific research, complex decision-making, legal analysis, and financial modeling. The broader GPT-5.4 family includes built-in computer use capabilities for agentic workflows, produces 33% fewer factual errors than GPT-5.2, and ranked #2 out of 116 models on the Artificial Analysis Intelligence Index. It also recorded benchmark scores on OSWorld-Verified, WebArena Verified, and an 83% score on GDPval for knowledge work tasks.
What GPT 5.4 Pro supports
Long Context Processing
Handles up to 1 million tokens in a single session, allowing entire codebases, legal documents, or research corpora to be processed without truncation.
Multi-Path Reasoning
Evaluates multiple reasoning paths before producing a response, a technique specific to the Pro variant designed for analytical depth in complex scenarios.
Agentic Workflows
Executes multi-step tasks with minimal human oversight using built-in computer use capabilities, including file access, tool orchestration, and data extraction.
Document & Artifact Generation
Produces structured outputs including documents, spreadsheets, slide decks, financial models, and legal analyses in a single generation pass.
Reduced Hallucination Rate
Generates 33% fewer factual errors in individual claims compared to GPT-5.2, based on OpenAI's reported benchmarks at launch.
Advanced Math & Science
Has demonstrated the ability to engage with open research-level mathematics problems, including an EpochAI Frontier Math problem noted in community discussion.
Token-Efficient Inference
Solves problems using fewer tokens than its predecessor GPT-5.2, reducing latency and cost for high-volume production workloads.
Ready to build with GPT 5.4 Pro?
Get Started FreeBenchmark scores
Scores represent accuracy — the percentage of questions answered correctly on each test.
| Benchmark | What it tests | Score |
|---|---|---|
| ARC-AGI-2 | Novel abstract reasoning and pattern recognition | 83.3% |
Common questions about GPT 5.4 Pro
What is the context window for GPT-5.4 Pro?
GPT-5.4 Pro supports a context window of 1 million tokens, which is the largest context window OpenAI has offered as of its March 2026 release.
What is the training data cutoff for GPT-5.4 Pro?
The training date listed for GPT-5.4 Pro is March 2026, which represents the approximate knowledge cutoff for the model.
How does GPT-5.4 Pro differ from the standard GPT-5.4?
GPT-5.4 Pro adds multi-path reasoning evaluation and greater analytical depth compared to the standard GPT-5.4. It is intended for scenarios where thoroughness matters more than response speed, such as scientific research and complex decision-making.
What types of tasks is GPT-5.4 Pro best suited for?
GPT-5.4 Pro is designed for professional and enterprise use cases including legal analysis, financial modeling, scientific research, document drafting, data analysis, and extended agentic workflows.
Is GPT-5.4 Pro available through Microsoft Azure?
Yes, GPT-5.4 is available through Microsoft Azure AI Foundry, as announced by Microsoft at the time of the model's launch in March 2026.
What people think about GPT 5.4 Pro
Community discussion around GPT-5.4 has been largely positive, with users on r/singularity highlighting notable benchmark improvements over GPT-5.2 and discussing a case where the model may have engaged with an open EpochAI Frontier Math problem. The MineBench comparison threads attracted significant upvotes, suggesting strong interest in quantified performance differences between model versions.
Some threads focus on distinguishing GPT-5.4 from GPT-5.4 Pro, with users comparing their outputs on structured benchmarks. General release reaction threads on r/ChatGPT reflect broad user interest, though discussion there centers more on availability and first impressions than technical evaluation.
Difference Between GPT 5.2 and GPT 5.4 on MineBench
An EpochAI Frontier Math open problem may have been solved for the first time by GPT5.4
5.4 out!
Differences Between GPT 5.4 and GPT 5.4-Pro on MineBench
Documentation & links
Parameters & options
Explore similar models
OpenAI GPT‑5.2 Pro
The most capable model series yet for professional knowledge work.
OpenAI GPT 5.4
OpenAI's most capable and efficient frontier model for professional work, combining powerful reasoning with reliable agentic execution at scale.
OpenAI GPT-5.1
The best model for coding and agentic tasks across domains
Google Gemini 3.1 Pro
Google's frontier reasoning model delivering enhanced software engineering, agentic reliability, and multimodal intelligence across a 1M-token context window.
Anthropic Claude 4.6 Sonnet
Anthropic's most capable Sonnet model yet, delivering near-Opus-level intelligence for coding, agents, and computer use with a 1M token context window.
Mistral Mistral Medium 3
A versatile AI model designed for professional applications with particular strengths in coding and multimodal understanding. The model can be deployed across various environments, making it ideal for enhancing customer service, personalizing business processes, and analyzing complex datasets across industries.
Start building with GPT 5.4 Pro
No API keys required. Create AI-powered workflows with GPT 5.4 Pro in minutes — free.