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OpenAI Released March 5, 2026 Fresh data: Synced Mar 10, 2026

OpenAI: GPT-5.4 Pro

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs. Optimized for step-by-step reasoning, instruction following, and accuracy, GPT-5.4 Pro excels at agentic coding, long-context workflows, and multi-step problem solving.

Tool useVisionReasoning

Why it stands out

Offers a 1050K-token context window, enabling full-document and multi-file analysis without chunking.
Combines tool use with reasoning — a strong baseline for agentic and multi-step workflows.
Multimodal input (vision) extends it beyond text-only workflows.

What to watch

Output pricing ($180/M) puts it at the high end — monitor generation length for cost control.
No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for OpenAI: GPT-5.4 Pro.

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release

OpenAI: GPT-5.4 Pro entered the tracked catalog

March 5, 2026

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs. Optimized for step-by-step reasoning, instruction following, and accuracy, GPT-5.4 Pro excels at agentic coding, long-context workflows, and multi-step problem solving.

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Recent changes

LaunchMar 5

OpenAI launched OpenAI: GPT-5.4 Pro

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