GPT-5.6 Luna reasoning

openrouter
openai
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...

Capabilities

Context Window 1M tokens
Max Output 128k tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $1.00
Output $6.00
Cache Read $0.10
Cache Write $1.25

Supported Parameters

include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools

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