Frontier GPT model for professional reasoning, coding, and multimodal work

Details

FieldValue
idopenai-gpt-56-luna-pro
familygpt-luna
modalitytext+image->text
context_length1000000
max_output_tokens128000
knowledge_cutoff2026-02-16
release_date2026-07-09
is_open_weightsno
supports_tool_callyes
supports_reasoningyes
supports_structured_outputyes
supports_attachmentyes
input_modalitiestext, image
output_modalitiestext

Providers

GPT-5.6 Luna Pro