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OpenAI: GPT-5.6 Luna (batch)

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...

Developer
openai
Input modalities
file, image, text
Output modalities
text
Context tokens
1,050,000
Latest price observation
2026-09-28
Lowest paired standard token quote
$0.10 input / $0.60 output per 1M tokens

Dated price and provider records

Provider and channelInputOutput or native rateUnit and statusSource and observation
Automatic routingopenrouter$0.10$0.601M tokenspriced · USDopenrouter2026-09-28

These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.