OpenAI: GPT-5 Pro

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

GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and accuracy in high-stakes use cases. It supports test-time routing features and advanced prompt understanding, including user-specified intent like "think hard about this." Improvements include reductions in hallucination, sycophancy, and better performance in coding, writing, and health-related tasks.

Key Specifications
Context
400K
Released
Oct 06, 2025
Supported Parameters

This model supports the following parameters:

Tools Structured Outputs Tool Choice Reasoning Include Reasoning Response Format Seed Max Tokens
Features

This model supports the following features:

Tools Reasoning Response Format Structured Outputs
Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $15
Completion $120

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/gpt-5-pro-2025-10-06 400K $15 / 1M tokens $120 / 1M tokens
Other Models by openai