GPT-5.6 Luna
ClosedGeneral LLMReasoningTool useVision
OpenAI's GPT-5.6 Luna model supports text, image, and PDF input, excels at chat, reasoning, and tool use with a 1.05M token context window.
1Mcontext
$0.2 / $1.2per 1M tokens (in / out)
—parameters
86stories in our feed
Specs
hover a value to see its sourceContext window1M
Max output125K
Parameters—
Knowledge cutoff2026-02-16
LicenceProprietary
Commercial useAPI only
InputText · Image · PDF
OutputText
Familygpt-luna
API price
USD per 1M tokensInput$0.2
Output$1.2
Cached input$0.02
No price change recorded since we started tracking.
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