openai

OpenAI: GPT-5.5 Pro (batch)

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...

openai/gpt-5.5-pro:batch

Context Size

1,050K

Input Price

2,250,000 pts/M

Output Price

13,500,000 pts/M

Architecture

File

Image

Text

Supported Parameters

include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

Details

TokenizerGPT

Max Completion128,000 tokens

Provider Context1,050K tokens

ModeratedYes

CreatedApr 24, 2026