India, March 18 -- OpenAI has introduced GPT-5.4 mini and GPT-5.4 nano, described as its most capable small models to date. These models extend the capabilities of GPT-5.4 into faster and more efficient systems designed for high-volume workloads. The release focuses on coding, reasoning, multimodal understanding, and tool use, while reducing latency and cost.

GPT-5.4 mini shows improvements over GPT-5 mini across coding, reasoning, multimodal understanding, and tool use, while running more than 2x faster. It also approaches the performance of the larger GPT-5.4 model in evaluations such as SWE-Bench Pro and OSWorld-Verified.

GPT-5.4 nano is positioned as the smallest and lowest-cost version of GPT-5.4. It improves on GPT-5 nano and is r...