GPT-5.6

gpt-sol Reasoning Tool Calling Attachments Structured Output

Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows

Providers 2

Released Jul 9, 2026

Input Modalities text, image, pdf

Output Modalities text

Tarsk Use coding

Available Providers (2)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output	Docs
Xpersona	`gpt-5.6`	$1.50/MTok	$12/MTok	372K	128K
OpenAI	`gpt-5.6`	$4/MTok	$20/MTok	1.1M	128K

Reasoning

Tool Calling

Attachments

Open Weights

Structured Output