Advanced Reasoning Model for Complex Enterprise Tasks
Exclusively available via Responses API with multi-turn interaction support, configurable reasoning effort levels, and background mode for complex problem-solving tasks. GPT-5.4 Pro is OpenAI's premium variant designed for demanding computational tasks. With enhanced reasoning capabilities across medium, high, and xhigh effort levels, it achieves 89.3% accuracy on web search benchmarks, significantly outperforming the standard model's 82.7%.
The model processes both text and image inputs through a massive 1.05 million token context window (approximately 1,575 A4 pages). Available exclusively via the Responses API, it enables multi-turn interactions for users requiring superior performance.
Reasoning model
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