GPT-5.6 Luna is a fast, cost-efficient model in OpenAI's GPT-5.6 series. It is suited for high-volume, latency-sensitive tasks such as chat, classification, and lightweight agentic workflows, providing capable reasoning for...
Rank
#2
Up 66% week over week
Tokens
12.9T
2026-09-06
Requests
418.8M
418,787,054
Tool calls
-
Input / M
$0.20
Output / M
$1.20
Cache / M
$0.02
Context
1.1M
1,050,000 tokens