OpenAI

GPT-5 Pro

by OpenAItext+image+file->text1 endpoint

Overview

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...

Capabilities

Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Long context
File input
Deterministic seed

Modalities

Input
ImageTextFile
Output
Text

Technical Specifications

Context Window
400K tokens
Max Output
128K tokens
Knowledge Cutoff
2024-09-30
Tokenizer
GPT
Content Moderation
Enabled
Uptime (24h)
10000.0%

Supported Parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Pricing

Per 1M tokens
Input$15.00
Output$120.00
Added
October 6, 2025
Last synced 9/19/2026