GptClosed Weights

GPT-5.5

gpt-5.5

Best Input Price

$5.00 / 1M

Default frontier GPT for coding, computer use, research, and knowledge work

Context Window

1,050,000 tokens

Reasoning

Supported

Tool Calling

Supported

Released

2026-04-23

Inference Providers (2)

Provider	Model ID	Context	Input / 1M	Output / 1M	Action
AIHubMix	gpt-5.5	1,050,000	$5.00	$30.00	Docs ↗
OpenAI	gpt-5.5	1,050,000	$5.00	$30.00	Docs ↗