AI NewsOpenAI Introduces GPT-5.4 Mini, Nano as Faster Models Optimised for Coding and AI Agents

OpenAI Introduces GPT-5.4 Mini, Nano as Faster Models Optimised for Coding and AI Agents

5:11 PM IST · March 18, 2026

OpenAI introduced two new artificial intelligence (AI) models in the GPT-5.4 family on Tuesday. Dubbed GPT-5.4 mini and GPT-5.4 nano, the two smaller AI models are faster compared to the larger models in the family, and are aimed at low-latency workloads. Some of the key strengths of these models include coding proficiency, computer use, multimodal understanding, and subagent handling. For developers, these models will also be cost-efficient, given the lower cost of input and output tokens.