G
GPT-5.6 Luna
OpenAI
🧠 Language Model
OpenAI GPT-5.6 Luna — high-volume streaming tasks, fast + economical 5.6 tier.
Specifications
Input modalitiestext, image
Output modalitiestext
Capabilitiestools, reasoning, vision
Relative speed●●●●● Blazing
Context window272,000 tokens
Max output128,000 tokens
Vision inputYes
Tool callingYes
Input price$1.75 / 1M
Output price$10.50 / 1M
Pricing
$1.75 / 1M input tokens · $10.50 / 1M output tokens
Platform credit pricing — live rates on the Models page.