GPT Luna Latest
OpenAI馃嚭馃嚫
openai/gpt-luna-latestThis is OpenRouter's auto-updating alias to OpenAI's current 'Luna' model, always resolving to the newest release in that family (1.05M-token context) rather than a pinned snapshot. Luna is the cheapest and fastest tier in OpenAI's Sol/Terra/Luna/Astra alias family, priced roughly ten times below Sol and suited to high-volume, latency-sensitive chat and lightweight agent work.
Cost rate
0.1x
Context
1.1M
Released
Sep 11, 2026
Input
FileImageText
Output
Text
Support
ReasoningTool callingStructured outputs
Best at
The categories where this model ranks highest.
Image understanding
#65 路 top 39%
Mathematical
#67 路 top 17%
Software & IT Services
#79 路 top 19%
Writing, Literature, & Language
#86 路 top 21%