OpenAI / MODEL CARD
GPT 6 Luna
Small tasks. Big possibilities.
Overview
An efficient GPT 6 model for focused tasks and high-volume workloads. Supports reasoning controls alongside text and image understanding.
Working with GPT 6 Luna
Responses supports tool calling. Chat Completions function calls require reasoning effort set to none.
Specifications
- Official model ID
gpt-6-luna- Context window
- 1,050,000 tokens
- Maximum output
- 128,000 tokens
- Input
- Text and images
- Output
- Text
- Knowledge cutoff
- May 2026
Manufacturer specifications · checked October 8, 2026. Cloud limits are shown separately below.
OpenAI model documentation ↗Reference pricing
OpenAI standard text rates / 1M tokens
Input$0.10
Output$0.50
Manufacturer rates. Long context, caching, tools, and processing modes can change the price. See the official documentation for details.
opencodex Cloud
Cloud access and prices are shown separately from manufacturer specifications.
View Cloud catalog →