OpenAI: GPT-5.6 Sol

GPT-5.6 Sol from OpenAI is designed to handle a wide range of input modalities including text, files, and images, with an impressive context length of 1,050,000 tokens. It supports both reasoning and tools integration, making it versatile for complex tasks. While the model offers robust capabilities in reasoning and supporting diverse inputs, its structured output feature is not specified. For users seeking a high-performing model across multiple benchmarks, GPT-5.6 Sol stands out with a blended score of 99.3 from three independent evaluations. However, given its pricing at $2.0 per million input tokens and $10.0 per million output tokens, it may be more suited for professional applications where cost is not the primary concern due to its superior benchmark performance.