GPT-6 Luna

Closed Active Multimodal gpt-6-luna

Most efficient GPT-6 model for focused, high-volume tasks.

Released
Sep 22, 2026
Context window
1.1M tokens
Max output
128K tokens
Parameters
Not disclosed
Input price
$0.10 per 1M
Output price
$0.50 per 1M

Prices are first-party list prices in USD at the standard tier. Last verified Oct 30, 2026.

Pricing

Launch priceSep 22, 2026
$0.10 in / $0.50 out
Current price since Sep 22, 2026
$0.10 in / $0.50 out
Cached input $0.01 per 1M

Specifications

Developer
OpenAI
Model type
Multimodal
Architecture
Not disclosed
Parameters
Not disclosed
Input
Text Image
Output
Text
Knowledge cutoff
May 2026
License
Proprietary
API access
First-party API
Capabilities
Long context Reasoning Small LM Vision