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

OpenAI’s GPT‑5.4 mini is now available in the API, Codex, and ChatGPT, whereas GPT‑5.4 nano is only available in the API.

OpenAI unveils small models GPT‑5.4 mini and nano

OpenAI (OPENAI) has launched GPT‑5.4 mini and nano, its most capable small models yet, according to the ChatGPT maker.

The new model offers performance improvements in reasoning, multimodal understanding and more.

OpenAI's new GPT-5.4 mini model offers performance improvements in reasoning, multimodal understanding and more.

OpenAI's GPT-5.4 mini and nano launch - with near flagship performance at much lower cost

The latest GPT-5.4 mini model delivers benchmark results surprisingly close to the full GPT-5.4 model while running much faster, signaling a shift toward smaller AI models powering real-world ...