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GPT-5.6 Luna

openai/gpt-5.6-luna

OpenAI / GPT

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Cost-efficient GPT-5.6 model for fast, high-volume workloads

Released
2026-07-09
Context window
1.1M
Max output
128K
Weights
Closed
Modalities
TextInputImageInputDocumentInputTextOutput
Capabilities
AttachmentsReasoningTool callStructured
Providers
AbacusAI-ROUTERAIHubMixAzureAzure Cognitive ServicesCloudflare AI GatewayCrossModelGitHub CopilotKenariKilo GatewayLLM GatewayMerge GatewayNanoGPTOfoxOpenAIOpenCode GoOpenCode ZenOpenRouterrouting.runVercel AI GatewayVivgridZenMux

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