OpenAI Launches GPT-5.4 with Native Computer Use and 1M Token Window
OpenAI has officially launched GPT-5.4, a new frontier model designed to advance autonomous AI agents through native computer use capabilities. Released on March 5, 2026, the model can now control applications by issuing keyboard and mouse commands based on visual screenshots. This update includes specialized versions: GPT-5.4 Thinking, which provides detailed outlines of its reasoning, and GPT-5.4 Pro, optimized for enterprise-level performance in law and finance. With a 1 million token context window and a 33 percent reduction in factual claim errors over its predecessor, GPT-5.4 represents a significant shift toward models that perform complex, long-horizon work like financial modeling and legal analysis. OpenAI also introduced a Tool Search feature for API users to increase efficiency and new safety benchmarks to monitor the transparency of the model's internal reasoning steps.
Topics Covered
- 💻 Native Computer Use: How GPT-5.4 executes tasks across applications using mouse and keyboard commands.
- 🧠 Reasoning and Logic: The introduction of GPT-5.4 Thinking for complex problem-solving and outlined thought processes.
- 📊 Professional Benchmarks: Record-breaking scores in knowledge work, law, and finance-specific AI evaluations.
- 🛡️ Safety and Factuality: Reductions in hallucinations and new evaluations for monitoring the model's chain-of-thought.
- ⚡ API Enhancements: The 1 million token context window and the new efficient Tool Search system.
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