OpenAI: GPT-5.5

The OpenAI GPT-5.5 is a language model that supports three input modalities: file, image, and text. It has a context length of 1,050,000 tokens and can generate completions up to 128,000 tokens. The model also supports tools and reasoning capabilities. However, it does not provide structured output. Considering its pricing, the OpenAI GPT-5.5 may be worth shortlisting for organizations or individuals who require a high-capacity language model with diverse input modalities. Its blended benchmark score of 83.5 across two independent benchmarks is respectable, although more data would provide a clearer picture of its performance. At $35 per million tokens (input and output combined), this model may be a viable option for those willing to invest in a high-end solution with robust capabilities.