OpenAI: GPT-5.6 Luna Pro

The OpenAI GPT-5.6 Luna Pro boasts an extensive context length of 1,050,000 tokens and supports multiple input modalities including text, files, and images. It can also handle reasoning tasks and employs tools for enhanced functionality. However, this model lacks structured output support and does not offer open weights access. Given its pricing at $1.0 per million input tokens and $6.0 per million output tokens, it may be more suitable for organizations willing to invest in a robust yet flexible AI solution that can process diverse inputs and handle complex reasoning tasks. Until independent benchmark coverage is available, the true performance of GPT-5.6 Luna Pro remains unproven, but its capabilities make it a viable option for those needing advanced text and multimedia processing.