GPT-5.6 Cyber

Available

An OpenAI model with a 400K-token context window, image input and tool calling. On the OpenAI API since August 10, 2026.

Access details: OpenAI API

The model ID to use in API requests.

gpt-5.6-cyber

Updated Sep 23, 2026

Sources & notes

Capabilities & limits

Context window: 400K
Maximum output: 128K
Image input: Supported
Tool calling: Supported
Structured output: Supported

Pricing

USD / 1M tokens

Input: $12.50
Output: $75.00

Standard rates per million tokens. Discounts and long-context rates, where offered, are on OpenAI's pricing page.

Full rate card 4 rates

All prices in USD.

Standard input

$12.50 per 1M tokens

Standard output

$75.00 per 1M tokens

Cached input

$1.25 per 1M tokens

Cache writes

$15.625 per 1M tokens

Cyber models table on the pricing page. No long-context tier is listed (maximum input is 272K tokens). Restricted access: requires separate approval and provisioning through the Daybreak program (Daybreak Red tier).

Price history

Sep 23, 2026

Input $12.50 per million tokens

Sep 23, 2026

Output $75.00 per million tokens

Technical details

Parameters: Not published
Active parameters: Not published
Architecture: Not published
Training / knowledge cutoff: Feb 16, 2026
Input modalities: Text, image
Output modalities: Text

From OpenAI

Official announcement ↗

Release & lifecycle

First available: Aug 10, 2026
available: As of Sep 23, 2026