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GPT-5.6 Luna
Top-tier GPT-5.6 with a huge context
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See available modelsAbout the model
GPT-5.6 Luna is a model in the top-tier GPT-5.6 lineup from OpenAI, which continues the GPT-5 series, with an emphasis on reasoning, image understanding and a very large context. It lays out deep step-by-step reasoning for complex multi-stage tasks, is strong in code and analytics and understands images. Its huge context window fits lengthy documents, long conversations and entire codebases. The model reliably calls tools (function-calling) and is a good fit for complex agent scenarios. It works confidently with Russian.
Strengths
- The deep reasoning of the GPT-5.6 lineup
- Huge context
- Strong with code and analytics
- Works with images and visual context
- Reliable tool calling for agents
Where to use it
- Complex analytics and research
- Development and analysis of large codebases
- Working with huge documents and correspondence
- Autonomous agents and multi-step planning
- Assistants that analyze images
- Tasks where depth and context are critical