OpenAI: GPT-5.4 Nano

GPT-5.4 Nano is a model from OpenAI that accepts text, image, and file inputs and returns text. It offers a 400,000-token context window with up to 128,000 tokens of output, which leaves room for long documents or large batches of material in a single request. It supports tool calling and reasoning; the available data does not confirm structured output support, so teams that depend on strict schemas should verify that before committing. At $0.20 per million input tokens and $1.25 per million output tokens, it suits cost-sensitive workloads that still need tools and long context. Its blended score of 68.1 rests on only three benchmarks, so treat its standing as provisional. Within that set the profile is uneven: 92.5 on the coding index, 63.1 on the general index, and 45.4 on the agentic index. Shortlist it for budget coding tasks, but test it carefully before using it for multi-step agent work.