O-proClosed Weights

OpenAI o3 Pro

o3-pro

Best Input Price

$20.00 / 1M

High-effort o3 tier for difficult technical reasoning and careful answers

Context Window

200,000 tokens

Reasoning

Tool Calling

Supported

Released

2024-06-01

Inference Providers (2)

Provider	Model ID	Context	Input / 1M	Output / 1M	Action
Helicone	o3-pro	200,000	$20.00	$80.00	Docs ↗
OpenAI	o3-pro	200,000	$20.00	$80.00	Docs ↗