OpenAI: GPT-5.4 Pro

Text input File input Image input Text output
Author's Description

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.

Key Specifications
Context
1M
Released
Mar 05, 2026
Supported Parameters

This model supports the following parameters:

Tool Choice Logit Bias Reasoning Stop Tools Seed Max Tokens Structured Outputs Presence Penalty Frequency Penalty Response Format Logprobs Top Logprobs Include Reasoning
Features

This model supports the following features:

Tools Structured Outputs Response Format Reasoning
Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $30
Completion $180
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/gpt-5.4-pro-20260305 1M $30 / 1M tokens $180 / 1M tokens
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