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GPT 5.6 Luna

InstructReasoningToolsImageDocument

Always use the latest version

Use an Auto-Update alias to follow future releases of this model series.

Auto-Update model ID
gpt-5:latest
GPT-5.6 Luna is a fast, cost-efficient model optimized for high-volume tasks, real-time interactions, and lightweight reasoning.
Provider
Context Size
Speed
Input Cost
Output Cost
Cache Cost

Usage

Generate your API key and query the model through the OpenAI-compatible interface. For more details, see the documentation.

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