OpenAI Launches Fast Efficient GPT 5.4 Mini and Nano Models
OpenAI launched GPT-5.4 mini and nano, faster, smaller models for coding, reasoning, and multimodal tasks. GPT-5.4 mini outperforms GPT-5 mini and nears GPT-5.4's performance, while nano is cheaper for simpler tasks. Designed for low-latency uses like coding assistants and subagents, they balance speed, cost, and capability. GPT-5.4 mini supports text, images, tools, and is in API, Codex, ChatGPT; nano is API-only and cheaper.