OpenAI: GPT-5.4 Pro

OpenAIID: 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.

Pricing per 1M Tokens

Input (Prompt)$30
Output (Completion)$180
Cache ReadFree
Cache WriteFree
ImageN/A

Specifications

Context Length1.1M
Max Output Tokens128K
Input ModalitiesText + Image + File
Output ModalitiesText
TokenizerGPT
Instruct TypeN/A
Top Provider Context1.1M
Top Provider Max Output128K
ModeratedYes

Compare this model

See how OpenAI: GPT-5.4 Pro stacks up against other models.

vs OpenAI: GPT-5.4 Nanovs OpenAI: GPT-5.4 Minivs OpenAI: GPT-5.4vs OpenAI: GPT-5.3 Chatvs OpenAI: GPT-5.3-Codex

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OpenAI: GPT-5.3 Chat
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OpenAI: GPT-5.3-Codex
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Last updated: March 23, 2026

First tracked: March 23, 2026